ramnit | 25219ad407cb26ac174799adaf6ffb23b3697c3376aa8e072b0271d5b0ab5ce5

Analysis

max time kernel
176s
max time network
154s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
05-12-2022 13:41

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

25219ad407cb26ac174799adaf6ffb23b3697c3376aa8e072b0271d5b0ab5ce5.dll
Size

279KB
MD5

69fb1b89d99533adf5313be733e69cb0
SHA1

0a4311679e277ca491192dc97caf1631b9742618
SHA256

25219ad407cb26ac174799adaf6ffb23b3697c3376aa8e072b0271d5b0ab5ce5
SHA512

ca4d1e7e35187d4cba6bda66cba72bb524dbf225e901dbcdd20833da96d2248c2bca4379d1ea4f87263e4b992951c2b1c31a6b7730854392a94f276828722161
SSDEEP

6144:ArkYHjIWeWcd71bynCoYh6ULa7U6+VSiJ:BYHjIWPo71boYs7w6GS6

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
948	rundll32mgr.exe
676	WaterMark.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/948-63-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/948-64-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/948-70-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/676-90-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/676-92-0x0000000000400000-0x0000000000426000-memory.dmp	upx
behavioral1/memory/676-219-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral1/memory/960-905-0x0000000074AA0000-0x0000000074AEB000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
960	rundll32.exe
960	rundll32.exe
948	rundll32mgr.exe
948	rundll32mgr.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe
File created	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe

Drops file in Program Files directory 10 IoCs

description	ioc	Process
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	rundll32mgr.exe
File opened for modification	C:\Program Files\7-Zip\7-zip.dll	svchost.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
File opened for modification	C:\Program Files (x86)\Microsoft\pxBEED.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	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	svchost.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
340	960	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 27 IoCs

pid	Process
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
676	WaterMark.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe
1824	svchost.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
340	WerFault.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeDebugPrivilege	676	WaterMark.exe
Token: SeDebugPrivilege	1824	svchost.exe
Token: SeDebugPrivilege	960	rundll32.exe
Token: SeDebugPrivilege	340	WerFault.exe
Token: SeDebugPrivilege	676	WaterMark.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
948	rundll32mgr.exe
676	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 2040 wrote to memory of 960	2040	rundll32.exe	28
PID 960 wrote to memory of 948	960	rundll32.exe	29
PID 960 wrote to memory of 948	960	rundll32.exe	29
PID 960 wrote to memory of 948	960	rundll32.exe	29
PID 960 wrote to memory of 948	960	rundll32.exe	29
PID 960 wrote to memory of 340	960	rundll32.exe	30
PID 960 wrote to memory of 340	960	rundll32.exe	30
PID 960 wrote to memory of 340	960	rundll32.exe	30
PID 960 wrote to memory of 340	960	rundll32.exe	30
PID 948 wrote to memory of 676	948	rundll32mgr.exe	31
PID 948 wrote to memory of 676	948	rundll32mgr.exe	31
PID 948 wrote to memory of 676	948	rundll32mgr.exe	31
PID 948 wrote to memory of 676	948	rundll32mgr.exe	31
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1928	676	WaterMark.exe	32
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 676 wrote to memory of 1824	676	WaterMark.exe	33
PID 1824 wrote to memory of 260	1824	svchost.exe	27
PID 1824 wrote to memory of 260	1824	svchost.exe	27
PID 1824 wrote to memory of 260	1824	svchost.exe	27
PID 1824 wrote to memory of 260	1824	svchost.exe	27
PID 1824 wrote to memory of 260	1824	svchost.exe	27
PID 1824 wrote to memory of 332	1824	svchost.exe	6
PID 1824 wrote to memory of 332	1824	svchost.exe	6
PID 1824 wrote to memory of 332	1824	svchost.exe	6
PID 1824 wrote to memory of 332	1824	svchost.exe	6
PID 1824 wrote to memory of 332	1824	svchost.exe	6
PID 1824 wrote to memory of 368	1824	svchost.exe	5
PID 1824 wrote to memory of 368	1824	svchost.exe	5
PID 1824 wrote to memory of 368	1824	svchost.exe	5
PID 1824 wrote to memory of 368	1824	svchost.exe	5
PID 1824 wrote to memory of 368	1824	svchost.exe	5
PID 1824 wrote to memory of 380	1824	svchost.exe	4
PID 1824 wrote to memory of 380	1824	svchost.exe	4
PID 1824 wrote to memory of 380	1824	svchost.exe	4
PID 1824 wrote to memory of 380	1824	svchost.exe	4
PID 1824 wrote to memory of 380	1824	svchost.exe	4
PID 1824 wrote to memory of 416	1824	svchost.exe	3
PID 1824 wrote to memory of 416	1824	svchost.exe	3
PID 1824 wrote to memory of 416	1824	svchost.exe	3
PID 1824 wrote to memory of 416	1824	svchost.exe	3
PID 1824 wrote to memory of 416	1824	svchost.exe	3

C:\Windows\system32\lsass.exe
C:\Windows\system32\lsass.exe
1⤵
PID:476

C:\Windows\system32\services.exe
C:\Windows\system32\services.exe
1⤵
PID:460
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalServiceNetworkRestricted
  2⤵
  PID:764
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1096
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1768
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1176
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceNoNetwork
  2⤵
  PID:1060
- C:\Windows\System32\spoolsv.exe
  C:\Windows\System32\spoolsv.exe
  2⤵
  PID:108
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:296
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:876
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:852
- 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:680
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:600

C:\Windows\system32\winlogon.exe
winlogon.exe
1⤵
PID:416

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:380

C:\Windows\system32\wininit.exe
wininit.exe
1⤵
PID:368
- C:\Windows\system32\lsm.exe
  C:\Windows\system32\lsm.exe
  2⤵
  PID:484

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\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe
1⤵
PID:1912

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1992

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1312
- C:\Windows\system32\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\25219ad407cb26ac174799adaf6ffb23b3697c3376aa8e072b0271d5b0ab5ce5.dll,#1
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2040
- - C:\Windows\SysWOW64\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\25219ad407cb26ac174799adaf6ffb23b3697c3376aa8e072b0271d5b0ab5ce5.dll,#1
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:960
  - - C:\Windows\SysWOW64\rundll32mgr.exe
      C:\Windows\SysWOW64\rundll32mgr.exe
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Drops file in Program Files directory
      Suspicious use of UnmapMainImage
      Suspicious use of WriteProcessMemory
      PID:948
    - - 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:676
      - 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:1928
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:1824
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 960 -s 224
      4⤵
      Program crash
      Suspicious behavior: GetForegroundWindowSpam
      Suspicious use of AdjustPrivilegeToken
      PID:340

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1276

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
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

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

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

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

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

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

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

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

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

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

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

Download Submit
\Windows\SysWOW64\rundll32mgr.exe

Filesize
112KB

MD5
d991de961bb094d782cdba825249bb59

SHA1
695b3ede0c83cfec976b10ec38606ab912a7074b

SHA256
9d1853688bce399ed5ef5c8e76dd3ddffa6d15a0b29a9eb11e5746dce781fd9c

SHA512
10aca884bd85145ddc64181d21eb97ce837988029261bbe04c6dd0ceb2d12c88e34bba59c80879b7be7857c10ca46478613cce10da32f86aa2e24de3192f6146

Download Submit
memory/340-62-0x0000000000000000-mapping.dmp

Download
memory/676-219-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/676-90-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/676-92-0x0000000000400000-0x0000000000426000-memory.dmp

Filesize
152KB

Download
memory/676-68-0x0000000000000000-mapping.dmp

Download
memory/948-63-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-70-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-64-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/948-58-0x0000000000000000-mapping.dmp

Download
memory/960-905-0x0000000074AA0000-0x0000000074AEB000-memory.dmp

Filesize
300KB

Download
memory/960-907-0x0000000000240000-0x0000000000266000-memory.dmp

Filesize
152KB

Download
memory/960-85-0x0000000074AA0000-0x0000000074AEB000-memory.dmp

Filesize
300KB

Download
memory/960-86-0x0000000074A50000-0x0000000074A9B000-memory.dmp

Filesize
300KB

Download
memory/960-87-0x0000000074AA0000-0x0000000074AEB000-memory.dmp

Filesize
300KB

Download
memory/960-88-0x0000000000240000-0x0000000000266000-memory.dmp

Filesize
152KB

Download
memory/960-908-0x0000000000240000-0x0000000000266000-memory.dmp

Filesize
152KB

Download
memory/960-89-0x0000000000240000-0x0000000000266000-memory.dmp

Filesize
152KB

Download
memory/960-906-0x0000000074A50000-0x0000000074A9B000-memory.dmp

Filesize
300KB

Download
memory/960-55-0x0000000075591000-0x0000000075593000-memory.dmp

Filesize
8KB

Download
memory/960-54-0x0000000000000000-mapping.dmp

Download
memory/1824-96-0x0000000000000000-mapping.dmp

Download
memory/1824-97-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1824-94-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/1928-220-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1928-91-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1928-81-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1928-79-0x0000000000000000-mapping.dmp

Download
memory/1928-77-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download