ramnit | ec43e2f9071724373229b2bdec42d91d7f9e53909fe54e810ec822d47d1ccda8

General

Target

ec43e2f9071724373229b2bdec42d91d7f9e53909fe54e810ec822d47d1ccda8N.dll
Size

212KB
MD5

07eb5e273195eb531a5cb08156bbc8a0
SHA1

3df46bea258d5334b2e89d3b8c16da7308206ceb
SHA256

ec43e2f9071724373229b2bdec42d91d7f9e53909fe54e810ec822d47d1ccda8
SHA512

c29e54fb6c399db516c604a7ca61d000652935af37beaeb68b094168cbf2963ccebb664b4b4f7301976d101344f2497dc8f3839d3d77d269ec6ad742928b6b5e
SSDEEP

3072:YZ2hdMrfxwGT9y7ehRZUSerb5YpBN+5pC8JWLdOOKXR2lmc8uZm6mdP0w8uCoiMa:Y8hddGKYbN+u8JWLUOKXR2+6qcLNl

Score

10^/10

ramnit banker discovery 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
Ramnit family
ramnit

Executes dropped EXE 2 IoCs

pid	Process
2752	rundll32mgr.exe
4840	WaterMark.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 14 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2752-5-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-14-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-28-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-26-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-11-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-33-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/2752-6-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-37-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-38-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-39-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4840-41-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\pxC60F.tmp	rundll32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32mgr.exe

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3188	2232	WerFault.exe	89
4124	1476	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe

Modifies Internet Explorer settings 1 TTPs 27 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156457"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{444A7DF6-D4DC-11EF-91C3-CAF61997B0B0} = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\""	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "443887772"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "414295829"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "415858234"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31156457"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe
4840	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4840	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3156	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3156	iexplore.exe
3156	iexplore.exe
3300	IEXPLORE.EXE
3300	IEXPLORE.EXE
3300	IEXPLORE.EXE
3300	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
2752	rundll32mgr.exe
4840	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 464 wrote to memory of 1476	464	rundll32.exe	85
PID 464 wrote to memory of 1476	464	rundll32.exe	85
PID 464 wrote to memory of 1476	464	rundll32.exe	85
PID 1476 wrote to memory of 2752	1476	rundll32.exe	86
PID 1476 wrote to memory of 2752	1476	rundll32.exe	86
PID 1476 wrote to memory of 2752	1476	rundll32.exe	86
PID 2752 wrote to memory of 4840	2752	rundll32mgr.exe	88
PID 2752 wrote to memory of 4840	2752	rundll32mgr.exe	88
PID 2752 wrote to memory of 4840	2752	rundll32mgr.exe	88
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 2232	4840	WaterMark.exe	89
PID 4840 wrote to memory of 3156	4840	WaterMark.exe	95
PID 4840 wrote to memory of 3156	4840	WaterMark.exe	95
PID 4840 wrote to memory of 4520	4840	WaterMark.exe	96
PID 4840 wrote to memory of 4520	4840	WaterMark.exe	96
PID 3156 wrote to memory of 3300	3156	iexplore.exe	98
PID 3156 wrote to memory of 3300	3156	iexplore.exe	98
PID 3156 wrote to memory of 3300	3156	iexplore.exe	98

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ec43e2f9071724373229b2bdec42d91d7f9e53909fe54e810ec822d47d1ccda8N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:464
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ec43e2f9071724373229b2bdec42d91d7f9e53909fe54e810ec822d47d1ccda8N.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1476
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - Executes dropped EXE
    - Drops file in Program Files directory
    - System Location Discovery: System Language Discovery
    - Suspicious use of UnmapMainImage
    - Suspicious use of WriteProcessMemory
    PID:2752
  - - C:\Program Files (x86)\Microsoft\WaterMark.exe
      "C:\Program Files (x86)\Microsoft\WaterMark.exe"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:4840
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:2232
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2232 -s 204
        6⤵
        Program crash
        
        PID:3188
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        Suspicious use of FindShellTrayWindow
        Suspicious use of SetWindowsHookEx
        Suspicious use of WriteProcessMemory
        
        PID:3156
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3156 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3300
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:4520
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1476 -s 624
    3⤵
    - Program crash
    PID:4124

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1476 -ip 1476
1⤵
PID:2016

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2232 -ip 2232
1⤵
PID:4940

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
471B

MD5
37827a5b375c40c1d7c482099e06c5bb

SHA1
48a43de39625e410113ec4d2d3e355535c7163a9

SHA256
ffbd974e64098b8a4b5abe5633fe019780fb5eb4fb52418810fbbdc50084ef51

SHA512
e14bdded02c844462222ce326d91cfc2403f2fb164911a7b1401cb5dcb29c804383cf554304a5ea8465d743ef2f0fa78e6cba3f064dad02cd00076c1ac5f843e

Download Submit
C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Filesize
404B

MD5
6e12c82d6ecc3a45c2a10c12a5d0ead2

SHA1
98112d00374aeaa77055176ba70be45212ae1b1d

SHA256
45f8729ed5404a411e622cceedd3ffb2874524504aba697d7178815ba62df802

SHA512
8dd32242d75055d1c5be17f81afc67a66ab325d3fe64496b382b260cc721d35048d463cb67b8a67942b2d6c70e6ba0ba5fec492322d3797f8d0016be789ed384

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
60KB

MD5
94f2f6ffbba8e7644668b51b39983916

SHA1
63357bbdf90101969117983dbc0d4ed0e713c4d7

SHA256
ede7603855cb37082c241c720a6650988c684eb3bcb263e5dd7b457458940fed

SHA512
d04430ceac70c6fa71d07d9ee82ac2bb5e6c0641d5c9e7e5a3ed39d342e8b198f367676516a55f0653e0b88635a027b9ad220e223145b8be8df281bb6faf7156

Download Submit
memory/1476-0-0x0000000074E00000-0x0000000074E38000-memory.dmp

Filesize
224KB

Download
memory/1476-34-0x0000000074E00000-0x0000000074E38000-memory.dmp

Filesize
224KB

Download
memory/2232-32-0x0000000000E20000-0x0000000000E21000-memory.dmp

Filesize
4KB

Download
memory/2232-31-0x0000000000E40000-0x0000000000E41000-memory.dmp

Filesize
4KB

Download
memory/2752-11-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-6-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-9-0x00000000008B0000-0x00000000008B1000-memory.dmp

Filesize
4KB

Download
memory/2752-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/2752-14-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-29-0x00000000773D2000-0x00000000773D3000-memory.dmp

Filesize
4KB

Download
memory/4840-27-0x0000000003100000-0x0000000003101000-memory.dmp

Filesize
4KB

Download
memory/4840-36-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4840-35-0x00000000773D2000-0x00000000773D3000-memory.dmp

Filesize
4KB

Download
memory/4840-37-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-38-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-39-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-41-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-33-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-28-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4840-26-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

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