ramnit | f5c09ed0703b3d8d3d72c7b0bb812be89a532d5b0e6b901f766cc9b3d656fb66

General

Target

f5c09ed0703b3d8d3d72c7b0bb812be89a532d5b0e6b901f766cc9b3d656fb66.dll
Size

224KB
MD5

2789b7c7e26a77a55a442b318dd4e9ff
SHA1

50a1991c969c5c7670df9f38c3aba38f0f5c46a2
SHA256

f5c09ed0703b3d8d3d72c7b0bb812be89a532d5b0e6b901f766cc9b3d656fb66
SHA512

aafe723b242446de7efaaac247dc67b104a3dd8844ee74297eb69c544414249c14b84692f03f229acfb20c1bd0dbda7b31e32dc59ee86cf6bb719d699f2aa87d
SSDEEP

3072:wh0xWbpiLItpMGuFD9lTc3hcoeSwItEL+0PhnL:whjpi8tGftLxItELD

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

Processes:

svchost.exe

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

Processes:

regsvr32mgr.exeWaterMark.exe

pid process

1252 regsvr32mgr.exe
1904 WaterMark.exe

pid	process
1252	regsvr32mgr.exe
1904	WaterMark.exe

UPX packed file 5 IoCs

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

upx

Processes:

resource	yara_rule
behavioral1/memory/1252-64-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1252-65-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1252-71-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/1904-90-0x0000000000400000-0x0000000000437000-memory.dmp	upx
behavioral1/memory/1904-208-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Loads dropped DLL 4 IoCs

Processes:

regsvr32.exeregsvr32mgr.exe

pid process

856 regsvr32.exe
856 regsvr32.exe
1252 regsvr32mgr.exe
1252 regsvr32mgr.exe

pid	process
856	regsvr32.exe
856	regsvr32.exe
1252	regsvr32mgr.exe
1252	regsvr32mgr.exe

Drops file in System32 directory 3 IoCs

Processes:

regsvr32.exesvchost.exe

description	ioc	process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.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 10 IoCs

Processes:

svchost.exeregsvr32mgr.exe

description	ioc	process
File opened for modification	C:\Program Files\7-Zip\7-zip.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\px8F7.tmp	regsvr32mgr.exe
File created	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	regsvr32mgr.exe
File opened for modification	C:\Program Files\7-Zip\7-zip32.dll	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.dll	svchost.exe

Modifies registry class 2 IoCs

Processes:

regsvr32.exe

description	ioc	process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CAFEEFAC-0016-0000-0000-ABCDEFFEDCBA}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{CAFEEFAC-0016-0000-0000-ABCDEFFEDCBA}\ = "Java Plug-in 1.6.0"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 25 IoCs

Processes:

WaterMark.exesvchost.exe

pid	process
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1904	WaterMark.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe
1624	svchost.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

WaterMark.exesvchost.exeregsvr32.exe

description	pid	process
Token: SeDebugPrivilege	1904	WaterMark.exe
Token: SeDebugPrivilege	1624	svchost.exe
Token: SeDebugPrivilege	856	regsvr32.exe
Token: SeDebugPrivilege	1904	WaterMark.exe

Suspicious use of UnmapMainImage 2 IoCs

Processes:

regsvr32mgr.exeWaterMark.exe

pid process

1252 regsvr32mgr.exe
1904 WaterMark.exe

pid	process
1252	regsvr32mgr.exe
1904	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

Processes:

regsvr32.exeregsvr32.exeregsvr32mgr.exeWaterMark.exesvchost.exe

description	pid	process	target process
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 620 wrote to memory of 856	620	regsvr32.exe	regsvr32.exe
PID 856 wrote to memory of 1252	856	regsvr32.exe	regsvr32mgr.exe
PID 856 wrote to memory of 1252	856	regsvr32.exe	regsvr32mgr.exe
PID 856 wrote to memory of 1252	856	regsvr32.exe	regsvr32mgr.exe
PID 856 wrote to memory of 1252	856	regsvr32.exe	regsvr32mgr.exe
PID 1252 wrote to memory of 1904	1252	regsvr32mgr.exe	WaterMark.exe
PID 1252 wrote to memory of 1904	1252	regsvr32mgr.exe	WaterMark.exe
PID 1252 wrote to memory of 1904	1252	regsvr32mgr.exe	WaterMark.exe
PID 1252 wrote to memory of 1904	1252	regsvr32mgr.exe	WaterMark.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 976	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1904 wrote to memory of 1624	1904	WaterMark.exe	svchost.exe
PID 1624 wrote to memory of 260	1624	svchost.exe	smss.exe
PID 1624 wrote to memory of 260	1624	svchost.exe	smss.exe
PID 1624 wrote to memory of 260	1624	svchost.exe	smss.exe
PID 1624 wrote to memory of 260	1624	svchost.exe	smss.exe
PID 1624 wrote to memory of 260	1624	svchost.exe	smss.exe
PID 1624 wrote to memory of 332	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 332	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 332	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 332	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 332	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 372	1624	svchost.exe	wininit.exe
PID 1624 wrote to memory of 372	1624	svchost.exe	wininit.exe
PID 1624 wrote to memory of 372	1624	svchost.exe	wininit.exe
PID 1624 wrote to memory of 372	1624	svchost.exe	wininit.exe
PID 1624 wrote to memory of 372	1624	svchost.exe	wininit.exe
PID 1624 wrote to memory of 384	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 384	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 384	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 384	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 384	1624	svchost.exe	csrss.exe
PID 1624 wrote to memory of 420	1624	svchost.exe	winlogon.exe
PID 1624 wrote to memory of 420	1624	svchost.exe	winlogon.exe
PID 1624 wrote to memory of 420	1624	svchost.exe	winlogon.exe
PID 1624 wrote to memory of 420	1624	svchost.exe	winlogon.exe
PID 1624 wrote to memory of 420	1624	svchost.exe	winlogon.exe
PID 1624 wrote to memory of 464	1624	svchost.exe	services.exe
PID 1624 wrote to memory of 464	1624	svchost.exe	services.exe
PID 1624 wrote to memory of 464	1624	svchost.exe	services.exe
PID 1624 wrote to memory of 464	1624	svchost.exe	services.exe

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:464

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
2⤵
PID:752

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalService
2⤵
PID:840

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
2⤵
PID:1080

C:\Windows\system32\sppsvc.exe
C:\Windows\system32\sppsvc.exe
2⤵
PID:1656

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
2⤵
PID:1788

C:\Windows\system32\taskhost.exe
"taskhost.exe"
2⤵
PID:1108

C:\Windows\System32\spoolsv.exe
C:\Windows\System32\spoolsv.exe
2⤵
PID:836

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k NetworkService
2⤵
PID:340

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k netsvcs
2⤵
PID:884

C:\Windows\System32\svchost.exe
C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
2⤵
PID:804

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k RPCSS
2⤵
PID:668

C:\Windows\system32\svchost.exe
C:\Windows\system32\svchost.exe -k DcomLaunch
2⤵
PID:592

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:372

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

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1192

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\f5c09ed0703b3d8d3d72c7b0bb812be89a532d5b0e6b901f766cc9b3d656fb66.dll
2⤵
- Suspicious use of WriteProcessMemory
PID:620

C:\Windows\SysWOW64\regsvr32.exe
/s C:\Users\Admin\AppData\Local\Temp\f5c09ed0703b3d8d3d72c7b0bb812be89a532d5b0e6b901f766cc9b3d656fb66.dll
3⤵
- Loads dropped DLL
- Drops file in System32 directory
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:856

C:\Windows\SysWOW64\regsvr32mgr.exe
C:\Windows\SysWOW64\regsvr32mgr.exe
4⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1252

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 UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1904

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
PID:976

C:\Windows\SysWOW64\svchost.exe
C:\Windows\system32\svchost.exe
6⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1624

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1168

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

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
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

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

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

Download Submit
C:\Windows\SysWOW64\regsvr32mgr.exe

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

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

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

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

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
95KB

MD5
2da1d4c1a963fda73c91764e047da0aa

SHA1
96f15afa84829555dfc5d890b2882ade25eb6ebd

SHA256
665ea468657539ca49a4f1cfdb95431f667a7e145ce7c23cfa3c1aad049d10b5

SHA512
b32a9739d889866f913c841f243800f5aa95f1adf60f8b02eac19457e5c28e830eb1908d212dc25a893026d55ca5d273ad6e9acf733cbef4ab492a29d284af63

Download Submit
memory/620-54-0x000007FEFC331000-0x000007FEFC333000-memory.dmp

Filesize
8KB

Download
memory/856-87-0x000000006D630000-0x000000006D66A000-memory.dmp

Filesize
232KB

Download
memory/856-88-0x0000000000170000-0x00000000001A7000-memory.dmp

Filesize
220KB

Download
memory/856-161-0x0000000000170000-0x0000000000176000-memory.dmp

Filesize
24KB

Download
memory/856-89-0x0000000000170000-0x00000000001A7000-memory.dmp

Filesize
220KB

Download
memory/856-160-0x000000006D630000-0x000000006D66A000-memory.dmp

Filesize
232KB

Download
memory/856-56-0x0000000075711000-0x0000000075713000-memory.dmp

Filesize
8KB

Download
memory/856-55-0x0000000000000000-mapping.dmp

Download
memory/976-91-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/976-81-0x0000000000000000-mapping.dmp

Download
memory/976-83-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/976-79-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/976-209-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1252-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1252-71-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1252-65-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/1252-59-0x0000000000000000-mapping.dmp

Download
memory/1624-93-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1624-95-0x0000000000000000-mapping.dmp

Download
memory/1624-96-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1904-90-0x0000000000400000-0x0000000000437000-memory.dmp

Filesize
220KB

Download
memory/1904-69-0x0000000000000000-mapping.dmp

Download
memory/1904-208-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads