ramnit | edd9b9188e6b37ac06a6d3f8842fbbec678a2614017a477203b744674d169209

Analysis

max time kernel
195s
max time network
204s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/12/2022, 01:47

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

edd9b9188e6b37ac06a6d3f8842fbbec678a2614017a477203b744674d169209.dll
Size

472KB
MD5

ac7f900aca6e9d4d1a1b6ba837bbfb20
SHA1

ea3351df2a4893f660d61099f8c6bb2eb5396768
SHA256

edd9b9188e6b37ac06a6d3f8842fbbec678a2614017a477203b744674d169209
SHA512

ef9f6d54ddc2bba2a676e153ff4c383b6a967f6ccd255ceb7777e83323227f4a23db6f601c76c50b316bcdce8a44efc6fbe14e54216239c93ca3d699e85cc05b
SSDEEP

12288:AehnaNPpSVZmNxRCwnwm3W3OHIIf5SxT8Hc:Aeh0PpS6NxNnwYeOHXbH

Score

10^/10

ramnit banker persistence spyware stealer trojan upx worm

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,c:\\program files (x86)\\microsoft\\watermark.exe"	svchost.exe

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
1764	rundll32Srv.exe
1176	WaterMark.exe

UPX packed file 12 IoCs

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

upx

resource	yara_rule
behavioral1/files/0x000b00000001232f-56.dat	upx
behavioral1/files/0x000b00000001232f-57.dat	upx
behavioral1/files/0x000b00000001232f-59.dat	upx
behavioral1/memory/1764-64-0x0000000000400000-0x000000000045A000-memory.dmp	upx
behavioral1/files/0x000b00000001232f-65.dat	upx
behavioral1/files/0x0008000000012750-66.dat	upx
behavioral1/files/0x0008000000012750-67.dat	upx
behavioral1/files/0x0008000000012750-70.dat	upx
behavioral1/memory/1764-69-0x0000000000400000-0x000000000045A000-memory.dmp	upx
behavioral1/files/0x0008000000012750-71.dat	upx
behavioral1/memory/1176-81-0x0000000000400000-0x000000000045A000-memory.dmp	upx
behavioral1/memory/1176-215-0x0000000000400000-0x000000000045A000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1272	rundll32.exe
1272	rundll32.exe
1764	rundll32Srv.exe
1764	rundll32Srv.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32Srv.exe	rundll32.exe
File created	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File opened for modification	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe

Drops file in Program Files directory 4 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\pxEEC3.tmp	rundll32Srv.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	rundll32Srv.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
992	1272	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1176	WaterMark.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe
1688	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
992	WerFault.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	1176	WaterMark.exe
Token: SeDebugPrivilege	1688	svchost.exe
Token: SeDebugPrivilege	1272	rundll32.exe
Token: SeDebugPrivilege	992	WerFault.exe
Token: SeDebugPrivilege	1176	WaterMark.exe
Token: SeDebugPrivilege	1756	svchost.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1192 wrote to memory of 1272	1192	rundll32.exe	28
PID 1272 wrote to memory of 1764	1272	rundll32.exe	29
PID 1272 wrote to memory of 1764	1272	rundll32.exe	29
PID 1272 wrote to memory of 1764	1272	rundll32.exe	29
PID 1272 wrote to memory of 1764	1272	rundll32.exe	29
PID 1272 wrote to memory of 992	1272	rundll32.exe	30
PID 1272 wrote to memory of 992	1272	rundll32.exe	30
PID 1272 wrote to memory of 992	1272	rundll32.exe	30
PID 1272 wrote to memory of 992	1272	rundll32.exe	30
PID 1764 wrote to memory of 1176	1764	rundll32Srv.exe	31
PID 1764 wrote to memory of 1176	1764	rundll32Srv.exe	31
PID 1764 wrote to memory of 1176	1764	rundll32Srv.exe	31
PID 1764 wrote to memory of 1176	1764	rundll32Srv.exe	31
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1756	1176	WaterMark.exe	32
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1176 wrote to memory of 1688	1176	WaterMark.exe	33
PID 1688 wrote to memory of 260	1688	svchost.exe	26
PID 1688 wrote to memory of 260	1688	svchost.exe	26
PID 1688 wrote to memory of 260	1688	svchost.exe	26
PID 1688 wrote to memory of 260	1688	svchost.exe	26
PID 1688 wrote to memory of 260	1688	svchost.exe	26
PID 1688 wrote to memory of 332	1688	svchost.exe	6
PID 1688 wrote to memory of 332	1688	svchost.exe	6
PID 1688 wrote to memory of 332	1688	svchost.exe	6
PID 1688 wrote to memory of 332	1688	svchost.exe	6
PID 1688 wrote to memory of 332	1688	svchost.exe	6
PID 1688 wrote to memory of 368	1688	svchost.exe	5
PID 1688 wrote to memory of 368	1688	svchost.exe	5
PID 1688 wrote to memory of 368	1688	svchost.exe	5
PID 1688 wrote to memory of 368	1688	svchost.exe	5
PID 1688 wrote to memory of 368	1688	svchost.exe	5
PID 1688 wrote to memory of 384	1688	svchost.exe	4
PID 1688 wrote to memory of 384	1688	svchost.exe	4
PID 1688 wrote to memory of 384	1688	svchost.exe	4
PID 1688 wrote to memory of 384	1688	svchost.exe	4
PID 1688 wrote to memory of 384	1688	svchost.exe	4
PID 1688 wrote to memory of 420	1688	svchost.exe	3
PID 1688 wrote to memory of 420	1688	svchost.exe	3
PID 1688 wrote to memory of 420	1688	svchost.exe	3
PID 1688 wrote to memory of 420	1688	svchost.exe	3
PID 1688 wrote to memory of 420	1688	svchost.exe	3

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:480

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:472
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:736
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:304
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1016
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1112
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1032
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:328
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:276
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:864
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:836
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:800
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:656
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:576

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:420

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:384

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:488

C:\Windows\system32\csrss.exe
%SystemRoot%\system32\csrss.exe ObjectDirectory=\Windows SharedSection=1024,20480,768 Windows=On SubSystemType=Windows ServerDll=basesrv,1 ServerDll=winsrv:UserServerDllInitialization,3 ServerDll=winsrv:ConServerDllInitialization,2 ServerDll=sxssrv,4 ProfileControl=Off MaxRequestThreads=16
1⤵
PID:332

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\edd9b9188e6b37ac06a6d3f8842fbbec678a2614017a477203b744674d169209.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1192
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\edd9b9188e6b37ac06a6d3f8842fbbec678a2614017a477203b744674d169209.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1272
  - - C:\Windows\SysWOW64\rundll32Srv.exe
      C:\Windows\SysWOW64\rundll32Srv.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Program Files directory
      Suspicious use of WriteProcessMemory
      PID:1764
    - - C:\Program Files (x86)\Microsoft\WaterMark.exe
        
        "C:\Program Files (x86)\Microsoft\WaterMark.exe"
        5⤵
        Executes dropped EXE
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1176
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Modifies WinLogon for persistence
        Drops file in System32 directory
        Drops file in Program Files directory
        Suspicious use of AdjustPrivilegeToken
        
        PID:1756
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1688
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 1272 -s 228
      4⤵
      Program crash
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:992

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe
1⤵
PID:1976

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1716

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1200

C:\Windows\System32\smss.exe
\SystemRoot\System32\smss.exe
1⤵
PID:260

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

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

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

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

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

Download Submit
C:\Windows\SysWOW64\rundll32Srv.exe

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

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

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

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

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

Download Submit
\Windows\SysWOW64\rundll32Srv.exe

Filesize
90KB

MD5
957486cc8375b15f517fdec2d5768559

SHA1
9df493ad9764c4a6010d6f202c1cff81921f548d

SHA256
4d98da8a1542504e48bfec07f10204451c5490cab861fa1f1276f350e3a9dfec

SHA512
f1f949241cf2f2d4dcced0f22fbe20a951f5ec9e0a046b3b630b71f19ae081f4fa950d28fa3762fada19dd6ceb894da34616103591842f101add089a01fea93a

Download Submit
memory/1176-81-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1176-215-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1272-63-0x0000000000170000-0x00000000001CA000-memory.dmp

Filesize
360KB

Download
memory/1272-62-0x0000000000170000-0x00000000001CA000-memory.dmp

Filesize
360KB

Download
memory/1272-61-0x0000000010000000-0x0000000010078000-memory.dmp

Filesize
480KB

Download
memory/1272-216-0x0000000010000000-0x0000000010078000-memory.dmp

Filesize
480KB

Download
memory/1272-55-0x0000000074FD1000-0x0000000074FD3000-memory.dmp

Filesize
8KB

Download
memory/1688-87-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1688-84-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1756-73-0x0000000020010000-0x0000000020021000-memory.dmp

Filesize
68KB

Download
memory/1756-82-0x0000000020010000-0x0000000020021000-memory.dmp

Filesize
68KB

Download
memory/1756-77-0x0000000020010000-0x0000000020021000-memory.dmp

Filesize
68KB

Download
memory/1756-217-0x0000000020010000-0x0000000020021000-memory.dmp

Filesize
68KB

Download
memory/1764-64-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download
memory/1764-69-0x0000000000400000-0x000000000045A000-memory.dmp

Filesize
360KB

Download