ramnit | fef1ec3367c1cdd00a658cc1879d48f1b2408fcd4f25c02b667a8272f24f2a2a

General

Target

fef1ec3367c1cdd00a658cc1879d48f1b2408fcd4f25c02b667a8272f24f2a2a.dll
Size

176KB
MD5

b52596cc2f51e4cca31b4be61a1c8ac0
SHA1

89fdbc0d9781d1e2705b8712613e43b93aa436be
SHA256

fef1ec3367c1cdd00a658cc1879d48f1b2408fcd4f25c02b667a8272f24f2a2a
SHA512

f2fec90d388ffc46b9f1adfbde2c686b4f6e07fb778558ca99e22e21bc83997d4734bba425bb99fcb433452fe505fdfc301d4c125d817430d3e751ffa8ed0ad2
SSDEEP

3072:pgKKuiX63bw5dNjDh8pWVgTlFIYnUBBOmCCYhTQw/adrEV:iKZp3KNjVGv5KYhMN4

Score

10^/10

ramnit banker spyware stealer trojan upx worm

Malware Config

Signatures

Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 2 IoCs

pid	Process
5084	rundll32mgr.exe
4160	WaterMark.exe

UPX packed file 11 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/5084-139-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5084-140-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/5084-145-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4160-151-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-152-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-154-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-153-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-155-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-156-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-157-0x0000000000400000-0x0000000000423000-memory.dmp	upx
behavioral2/memory/4160-158-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9FFE.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
840	4788	WerFault.exe	83

Modifies Internet Explorer settings 1 TTPs 26 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "121401658"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "121401658"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "30999739"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{299CF141-70AE-11ED-B696-C264E7FE3618} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "30999739"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "376577860"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe
4160	WaterMark.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4340	iexplore.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4160	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4340	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4340	iexplore.exe
4340	iexplore.exe
1892	IEXPLORE.EXE
1892	IEXPLORE.EXE
1892	IEXPLORE.EXE
1892	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
5084	rundll32mgr.exe
4160	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 3068 wrote to memory of 1044	3068	rundll32.exe	80
PID 3068 wrote to memory of 1044	3068	rundll32.exe	80
PID 3068 wrote to memory of 1044	3068	rundll32.exe	80
PID 1044 wrote to memory of 5084	1044	rundll32.exe	81
PID 1044 wrote to memory of 5084	1044	rundll32.exe	81
PID 1044 wrote to memory of 5084	1044	rundll32.exe	81
PID 5084 wrote to memory of 4160	5084	rundll32mgr.exe	82
PID 5084 wrote to memory of 4160	5084	rundll32mgr.exe	82
PID 5084 wrote to memory of 4160	5084	rundll32mgr.exe	82
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4788	4160	WaterMark.exe	83
PID 4160 wrote to memory of 4340	4160	WaterMark.exe	87
PID 4160 wrote to memory of 4340	4160	WaterMark.exe	87
PID 4160 wrote to memory of 4448	4160	WaterMark.exe	88
PID 4160 wrote to memory of 4448	4160	WaterMark.exe	88
PID 4340 wrote to memory of 1892	4340	iexplore.exe	89
PID 4340 wrote to memory of 1892	4340	iexplore.exe	89
PID 4340 wrote to memory of 1892	4340	iexplore.exe	89

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fef1ec3367c1cdd00a658cc1879d48f1b2408fcd4f25c02b667a8272f24f2a2a.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3068
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fef1ec3367c1cdd00a658cc1879d48f1b2408fcd4f25c02b667a8272f24f2a2a.dll,#1
  2⤵
  - Drops file in System32 directory
  - Suspicious use of WriteProcessMemory
  PID:1044
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:5084
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:4160
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:4788
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 4788 -s 204
        6⤵
        Program crash
        
        PID:840
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious behavior: GetForegroundWindowSpam
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:4340
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4340 CREDAT:17410 /prefetch:2
        6⤵
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1892
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4448

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4788 -ip 4788
1⤵
PID:1644

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

C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
60KB

MD5
f75ba7b0befee8ceca41887a1c08275a

SHA1
c302a11726b67942df47bd592e0f16f4b55e27cd

SHA256
e17884dabe4a9f88f81cb7871f007699cc3f4ee349b12fa11e27750c6097104a

SHA512
23c379ad527f817382f9a38e2fda7cc6e77250289ca079a81a0e690fa8af98db290a55e953108788ecfbb6e1bf2746230c68fa1df513729d72758a782a768673

Download Submit
C:\Program Files (x86)\Microsoft\WaterMark.exe

Filesize
60KB

MD5
f75ba7b0befee8ceca41887a1c08275a

SHA1
c302a11726b67942df47bd592e0f16f4b55e27cd

SHA256
e17884dabe4a9f88f81cb7871f007699cc3f4ee349b12fa11e27750c6097104a

SHA512
23c379ad527f817382f9a38e2fda7cc6e77250289ca079a81a0e690fa8af98db290a55e953108788ecfbb6e1bf2746230c68fa1df513729d72758a782a768673

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
60KB

MD5
f75ba7b0befee8ceca41887a1c08275a

SHA1
c302a11726b67942df47bd592e0f16f4b55e27cd

SHA256
e17884dabe4a9f88f81cb7871f007699cc3f4ee349b12fa11e27750c6097104a

SHA512
23c379ad527f817382f9a38e2fda7cc6e77250289ca079a81a0e690fa8af98db290a55e953108788ecfbb6e1bf2746230c68fa1df513729d72758a782a768673

Download Submit
C:\Windows\SysWOW64\rundll32mgr.exe

Filesize
60KB

MD5
f75ba7b0befee8ceca41887a1c08275a

SHA1
c302a11726b67942df47bd592e0f16f4b55e27cd

SHA256
e17884dabe4a9f88f81cb7871f007699cc3f4ee349b12fa11e27750c6097104a

SHA512
23c379ad527f817382f9a38e2fda7cc6e77250289ca079a81a0e690fa8af98db290a55e953108788ecfbb6e1bf2746230c68fa1df513729d72758a782a768673

Download Submit
memory/1044-133-0x0000000010000000-0x000000001002E000-memory.dmp

Filesize
184KB

Download
memory/4160-155-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-157-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-158-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4160-156-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-151-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-152-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-154-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/4160-153-0x0000000000400000-0x0000000000423000-memory.dmp

Filesize
140KB

Download
memory/5084-139-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5084-145-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/5084-140-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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