ramnit | fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3

Analysis

max time kernel
93s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-01-2025 05:02

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General

Target

fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll
Size

554KB
MD5

cd9488a8aed4b4fb5836d6ae10a897a1
SHA1

3db525aff61e107cdd9ed9e0ce839ee583408c07
SHA256

fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3
SHA512

fe6b175586f3ac893e3ac530290b7e180fabc604ae198d969f492258a4afac3399e1cca31fc3fffa7c8928bd7ebd47dd928e76819c1e88d48e3802ac3c40d368
SSDEEP

12288:ah8fZLyb9PzVMBC/HVMOp4PkxHLCYwZckMQMNvrm4O9rR+:a8F+Pzr/Hfp4MIYwZckMQmvrmn8

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
4944	rundll32mgr.exe
4248	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/4944-8-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-13-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-9-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-12-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-7-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-16-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-15-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4944-17-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4248-31-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4248-30-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4248-32-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4248-41-0x0000000000400000-0x0000000000421000-memory.dmp	upx
behavioral2/memory/4248-39-0x0000000000400000-0x0000000000428000-memory.dmp	upx
behavioral2/memory/4248-42-0x0000000000400000-0x0000000000421000-memory.dmp	upx

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Microsoft\px785C.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	rundll32mgr.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3496	2500	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	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32mgr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	WaterMark.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 31 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2113858881"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2111671876"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2111671876"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31153162"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A9824E57-C7FD-11EF-9361-DA61A5E71E4E} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153162"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31153162"	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "442472750"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\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
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-3442511616-637977696-3186306149-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe
4248	WaterMark.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4248	WaterMark.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3984	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3984	iexplore.exe
3984	iexplore.exe
1824	IEXPLORE.EXE
1824	IEXPLORE.EXE
1824	IEXPLORE.EXE
1824	IEXPLORE.EXE

Suspicious use of UnmapMainImage 2 IoCs

pid	Process
4944	rundll32mgr.exe
4248	WaterMark.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 4456 wrote to memory of 4540	4456	rundll32.exe	82
PID 4456 wrote to memory of 4540	4456	rundll32.exe	82
PID 4456 wrote to memory of 4540	4456	rundll32.exe	82
PID 4540 wrote to memory of 4944	4540	rundll32.exe	83
PID 4540 wrote to memory of 4944	4540	rundll32.exe	83
PID 4540 wrote to memory of 4944	4540	rundll32.exe	83
PID 4944 wrote to memory of 4248	4944	rundll32mgr.exe	84
PID 4944 wrote to memory of 4248	4944	rundll32mgr.exe	84
PID 4944 wrote to memory of 4248	4944	rundll32mgr.exe	84
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 2500	4248	WaterMark.exe	85
PID 4248 wrote to memory of 3984	4248	WaterMark.exe	89
PID 4248 wrote to memory of 3984	4248	WaterMark.exe	89
PID 4248 wrote to memory of 32	4248	WaterMark.exe	90
PID 4248 wrote to memory of 32	4248	WaterMark.exe	90
PID 3984 wrote to memory of 1824	3984	iexplore.exe	91
PID 3984 wrote to memory of 1824	3984	iexplore.exe	91
PID 3984 wrote to memory of 1824	3984	iexplore.exe	91

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4456
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\fd95341188e806c0394accebbce84a3b3dd82c5e5263bc3f9737e96c3008d6e3.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4540
- - 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:4944
  - - 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:4248
    - - C:\Windows\SysWOW64\svchost.exe
        
        C:\Windows\system32\svchost.exe
        5⤵
        
        PID:2500
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 2500 -s 204
        6⤵
        Program crash
        
        PID:3496
    - - 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:3984
      - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3984 CREDAT:17410 /prefetch:2
        6⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:1824
    - - C:\Program Files\Internet Explorer\iexplore.exe
        
        "C:\Program Files\Internet Explorer\iexplore.exe"
        5⤵
        Modifies Internet Explorer settings
        
        PID:32

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 440 -p 2500 -ip 2500
1⤵
PID:4052

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

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
febff5e5b64433316ee5f116c5c14309

SHA1
55a533777edeed0d18304f073d59d5ca1e5c7737

SHA256
888dd735b3cf97e714243c7ecf44064128c4a97452b90ebbc66e317a113ef9a4

SHA512
cbadeca5bbd2528b4af7ad6d053483adac27db83bfcd8b75312a5aa4b09302f729b67a04bbb9af840cb3abd78ec668b5a6c8746685ba0f15780b5e0ea3dd88d8

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

Filesize
404B

MD5
e0c771ccd111efa445fd8db21216b7a6

SHA1
27aa72cced612c0a66c5e119c15165a1f236e4b3

SHA256
c07451bbc75c8f22f40f93d62362c8d3ff5d521f4c3fd826a8945a942ffd0ee3

SHA512
33827deab0876203803947c2d21ce057a17626c8df60a683aad220122016dae4d67520b567e9082c1408cc48c6d3649ce71066e8d5d1ac2c359a41706312311b

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\0BHOTC3C\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
119KB

MD5
6cfb85f1741b245f7c7774de1107e0fa

SHA1
59cbd10ae2cd0142fc090345fc59ccf4973030a4

SHA256
9865c7b2dd93dd0292508153a19398804630e1f41d8850421679786be6fead9e

SHA512
0a58981b86d9051ce13558571bad1c879e04cd1204ca6cac942cdace59ff2fdd1d985ff881dbaf54bdd7a745ba4358128781126dbc472892c3a2281fe3262681

Download Submit
memory/2500-37-0x0000000000C10000-0x0000000000C11000-memory.dmp

Filesize
4KB

Download
memory/2500-36-0x0000000000C30000-0x0000000000C31000-memory.dmp

Filesize
4KB

Download
memory/4248-41-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4248-40-0x0000000077A82000-0x0000000077A83000-memory.dmp

Filesize
4KB

Download
memory/4248-42-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4248-38-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/4248-39-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download
memory/4248-35-0x0000000077A82000-0x0000000077A83000-memory.dmp

Filesize
4KB

Download
memory/4248-33-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/4248-32-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4248-31-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4248-30-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4540-0-0x0000000010000000-0x0000000010090000-memory.dmp

Filesize
576KB

Download
memory/4944-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-15-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-13-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-11-0x00000000008A0000-0x00000000008A1000-memory.dmp

Filesize
4KB

Download
memory/4944-17-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-23-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/4944-16-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-7-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-6-0x0000000000401000-0x0000000000405000-memory.dmp

Filesize
16KB

Download
memory/4944-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4944-5-0x0000000000400000-0x0000000000428000-memory.dmp

Filesize
160KB

Download