SHA1
- 785f12821bd3a0adb94b277271fa81d1cadd0d8b—RTF (exploit)
- 89b28711270a891b0a04483ca8e2bb967def35bb—downloader
- 842688f077493d84c0d7127170558eb362bf9016—installer
- 7b5be45e9ca77fb091a5bed34860e66ba706e085—application package (lmpack1.exe)
- 115d4b6b80096b71d50a4f2c64fbe13bef8d04f9—application package (pn_pack1.exe)
A pack of applications designed to provide cybercriminals with unauthorized access to compromised computers. It is distributed with the help of Exploit.CVE2012-0158.121 and in the guise of an RTF document. Once the document is opened, a malicious file is decrypted and saved to the victim's computer. The file has a valid digital signature (like almost any other file from BackDoor.RatPack).
If fact, this downloader is an installer in NSIS (Nullsoft Scriptable Install System) format.
Once launched, the installer scans the system for virtual machines, monitoring programs, and debuggers. Then it initiates a search for online banking applications of several Russian financial organizations:
*ICPortalSSL *sib.taatta.net *isfront.priovtb.com *ISAPIgate.dll *bsi.dll *PortalSSL *IIS-Gate.dll *beta.mcb.ru *ibank *ibrs *iclient *e-plat.mdmbank.com *sberweb.zubsb.ru *ibc *elbrus *i-elba *clbank.minbank.ru *chelindbank.ru/online/ *uwagb *wwwbank *dbo *ib.If all the checks are successful, the installer connects to a remote server and downloads and runs another installer (install.cab) in NSIS format that contains the following files:
- setup.bin—7z archive
- setup1.bi—7z archive
- 7za.exe
This second installer extracts executable files from password-protected archives and runs them.
setup.bin:
- lmpack1.exe
- pn_pack1.exe
setup1.bin:
- pskill.exe
The lmpack.exe file is an installer in NSI format that contains an installation script and the following files:
7za.exe
FileTouch.exe
_??
a32.bin
a64.bin
files0.bin
files1.bin
files2.bin
files4.bin
files5.bin
h1.bin
n32.bin
n64.bin
p1.bin
setup1.binThe pn_pack1.exe file is an installer that contains an installation script and the following files:
FileTouch.exe
7za.exe
files3.bin
hh.bin
files0.bin
files4.bin
setup.binThe installer payload bears a modification of a shareware program called Remote Office Manager—Doctor Web security researchers have detected at least three versions of this program that differ in configuration settings. By intercepting a number of system functions, the malicious program is able to conceal the tool's shortcuts in the Windows taskbar and notification area preventing the user from detecting the program.
