ramnit | 2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee

Analysis

max time kernel
151s
max time network
149s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
23/11/2022, 19:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee.dll
Size

1.0MB
MD5

1ffdc5523571842b75b71dfdc86e538a
SHA1

f448e59b8545b185ade91ae0e69a3d70aff170eb
SHA256

2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee
SHA512

ec58434a67faa54a9ad2c46cc8542df2881d7e5540c6b813aaa84db67212894744187a8faa0ad9981cad7e317012c6e8587b4ed5e092c71da0c98554bc36f8b6
SSDEEP

24576:mNHDssXka/yPQPYlYfeZebgKEIeqmvf7a49:gXk+CekKbeqSWe

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	regsvr32mgr.exe
316	WaterMark.exe

UPX packed file 6 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/316-85-0x0000000000400000-0x0000000000429000-memory.dmp	upx
behavioral1/memory/316-87-0x0000000000400000-0x0000000000429000-memory.dmp	upx
behavioral1/memory/316-150-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Loads dropped DLL 4 IoCs

pid	Process
1432	regsvr32.exe
1432	regsvr32.exe
948	regsvr32mgr.exe
948	regsvr32mgr.exe

Drops file in System32 directory 3 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File opened for modification	C:\Windows\SysWOW64\dmlconf.dat	svchost.exe
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

Drops file in Program Files directory 10 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px9474.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	regsvr32mgr.exe
File opened for modification	C:\Program Files\7-Zip\7zG.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7z.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	svchost.exe
File opened for modification	C:\Program Files (x86)\Microsoft\WaterMark.exe	svchost.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

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{c0164c20-33c8-4f60-bfd1-557e08a93f58}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{c0164c20-33c8-4f60-bfd1-557e08a93f58}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{c0164c20-33c8-4f60-bfd1-557e08a93f58}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ec48db94-98df-4c2f-932f-bbc28af0a316}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ec48db94-98df-4c2f-932f-bbc28af0a316}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{c0164c20-33c8-4f60-bfd1-557e08a93f58}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ec48db94-98df-4c2f-932f-bbc28af0a316}\InprocServer32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{ec48db94-98df-4c2f-932f-bbc28af0a316}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee.dll"	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 26 IoCs

pid	Process
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
316	WaterMark.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe
284	svchost.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	316	WaterMark.exe
Token: SeDebugPrivilege	284	svchost.exe
Token: SeDebugPrivilege	316	WaterMark.exe

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
948	regsvr32mgr.exe
316	WaterMark.exe

Suspicious use of WriteProcessMemory 64 IoCs

description	pid	Process	procid_target
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1792 wrote to memory of 1432	1792	regsvr32.exe	28
PID 1432 wrote to memory of 948	1432	regsvr32.exe	29
PID 1432 wrote to memory of 948	1432	regsvr32.exe	29
PID 1432 wrote to memory of 948	1432	regsvr32.exe	29
PID 1432 wrote to memory of 948	1432	regsvr32.exe	29
PID 948 wrote to memory of 316	948	regsvr32mgr.exe	30
PID 948 wrote to memory of 316	948	regsvr32mgr.exe	30
PID 948 wrote to memory of 316	948	regsvr32mgr.exe	30
PID 948 wrote to memory of 316	948	regsvr32mgr.exe	30
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 1184	316	WaterMark.exe	31
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 316 wrote to memory of 284	316	WaterMark.exe	32
PID 284 wrote to memory of 260	284	svchost.exe	26
PID 284 wrote to memory of 260	284	svchost.exe	26
PID 284 wrote to memory of 260	284	svchost.exe	26
PID 284 wrote to memory of 260	284	svchost.exe	26
PID 284 wrote to memory of 260	284	svchost.exe	26
PID 284 wrote to memory of 332	284	svchost.exe	6
PID 284 wrote to memory of 332	284	svchost.exe	6
PID 284 wrote to memory of 332	284	svchost.exe	6
PID 284 wrote to memory of 332	284	svchost.exe	6
PID 284 wrote to memory of 332	284	svchost.exe	6
PID 284 wrote to memory of 368	284	svchost.exe	5
PID 284 wrote to memory of 368	284	svchost.exe	5
PID 284 wrote to memory of 368	284	svchost.exe	5
PID 284 wrote to memory of 368	284	svchost.exe	5
PID 284 wrote to memory of 368	284	svchost.exe	5
PID 284 wrote to memory of 380	284	svchost.exe	4
PID 284 wrote to memory of 380	284	svchost.exe	4
PID 284 wrote to memory of 380	284	svchost.exe	4
PID 284 wrote to memory of 380	284	svchost.exe	4
PID 284 wrote to memory of 380	284	svchost.exe	4
PID 284 wrote to memory of 416	284	svchost.exe	3
PID 284 wrote to memory of 416	284	svchost.exe	3
PID 284 wrote to memory of 416	284	svchost.exe	3
PID 284 wrote to memory of 416	284	svchost.exe	3
PID 284 wrote to memory of 416	284	svchost.exe	3
PID 284 wrote to memory of 464	284	svchost.exe	2
PID 284 wrote to memory of 464	284	svchost.exe	2
PID 284 wrote to memory of 464	284	svchost.exe	2
PID 284 wrote to memory of 464	284	svchost.exe	2

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:736
- C:\Windows\system32\sppsvc.exe
  C:\Windows\system32\sppsvc.exe
  2⤵
  PID:1720
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalServiceAndNoImpersonation
  2⤵
  PID:1616
- C:\Windows\system32\taskhost.exe
  "taskhost.exe"
  2⤵
  PID:1140
- 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:1000
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k NetworkService
  2⤵
  PID:108
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k netsvcs
  2⤵
  PID:856
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k LocalService
  2⤵
  PID:832
- C:\Windows\System32\svchost.exe
  C:\Windows\System32\svchost.exe -k LocalSystemNetworkRestricted
  2⤵
  PID:792
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k RPCSS
  2⤵
  PID:660
- C:\Windows\system32\svchost.exe
  C:\Windows\system32\svchost.exe -k DcomLaunch
  2⤵
  PID:580

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: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:1284
- C:\Windows\system32\regsvr32.exe
  regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee.dll
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1792
- - C:\Windows\SysWOW64\regsvr32.exe
    /s C:\Users\Admin\AppData\Local\Temp\2abb45ab0e2c1482e7bd80909cb4ad6cf9a3fbfe67c7e1823204ebf663cc89ee.dll
    3⤵
    - Loads dropped DLL
    - Drops file in System32 directory
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:1432
  - - 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: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:316
      - 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:1184
      - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:284

C:\Windows\system32\wbem\wmiprvse.exe
C:\Windows\system32\wbem\wmiprvse.exe
1⤵
PID:1196

\\?\C:\Windows\system32\wbem\WMIADAP.EXE
wmiadap.exe /F /T /R
1⤵
PID:1096

C:\Windows\system32\Dwm.exe
"C:\Windows\system32\Dwm.exe"
1⤵
PID:1228

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
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

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

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

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

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

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

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

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

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

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

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

Download Submit
\Windows\SysWOW64\regsvr32mgr.exe

Filesize
119KB

MD5
9d5d609dc8e2554054733d19eed45c5c

SHA1
ce72453fca9f477940a9def32bd8463549c6e1e4

SHA256
7a85b3db04beb0c4b6a8929fdf79726bcf1084efab0a9f04a8ebaa0a2bc9e0b1

SHA512
012cabde17ed1c1d1a48b5bc136591ff9c8e261e5da8bc7f67d0bd235a32150f63274362cdeef2376d2d5a38dfb0c9acc7cd3aa5244c1858b88b183f8cbe550b

Download Submit
memory/284-92-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/284-89-0x0000000020010000-0x000000002001B000-memory.dmp

Filesize
44KB

Download
memory/316-87-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/316-85-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/316-150-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

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

Filesize
132KB

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

Filesize
132KB

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

Filesize
132KB

Download
memory/1184-81-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1184-86-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1184-77-0x0000000020010000-0x0000000020022000-memory.dmp

Filesize
72KB

Download
memory/1432-56-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

Filesize
8KB

Download
memory/1792-54-0x000007FEFB5D1000-0x000007FEFB5D3000-memory.dmp

Filesize
8KB

Download