ramnit | a4ce9b73db0da5195699660b8a44cb6b9f7529d85a4f84e3f9b2c2c7b54d793e

Analysis

max time kernel
94s
max time network
111s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2024 22:50

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General

Target

a4ce9b73db0da5195699660b8a44cb6b9f7529d85a4f84e3f9b2c2c7b54d793eN.dll
Size

124KB
MD5

fe442a96ba409ac71c34d9d1c7e779a0
SHA1

eaea9dc6b1daf846c825e5b70cb1d5314b663760
SHA256

a4ce9b73db0da5195699660b8a44cb6b9f7529d85a4f84e3f9b2c2c7b54d793e
SHA512

648c2e01f939d06923f1174914436d4177f87f985341eda6bb71a1fa0cf3f550677fb9de10151d42beddb9dd9c6e847b4983c184cd2957c46f88d4f93e98ed2c
SSDEEP

3072:Sjul6/5M7VmKeZ88Dkj7oR2SqwKJXtf5DGyVBQwIY6X4l:SocvZNDkYR2SqwK/AyVBQ9RIl

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 1 IoCs

pid	Process
3728	rundll32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\rundll32mgr.exe	rundll32.exe

UPX packed file 9 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3728-10-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-14-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-16-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-15-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-13-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-9-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-8-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-7-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3728-6-0x0000000000400000-0x000000000041A000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 3 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	IEXPLORE.EXE

Modifies Internet Explorer settings 1 TTPs 30 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\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-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441932005"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31151903"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2024646713"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151903"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151903"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2027927987"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{A44DA6D5-C312-11EF-91C3-7ECF469E42CC} = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-940901362-3608833189-1915618603-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2024646713"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe
3728	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3728	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4860	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
4860	iexplore.exe
4860	iexplore.exe
3556	IEXPLORE.EXE
3556	IEXPLORE.EXE
3556	IEXPLORE.EXE
3556	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3728	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 212 wrote to memory of 4708	212	rundll32.exe	83
PID 212 wrote to memory of 4708	212	rundll32.exe	83
PID 212 wrote to memory of 4708	212	rundll32.exe	83
PID 4708 wrote to memory of 3728	4708	rundll32.exe	84
PID 4708 wrote to memory of 3728	4708	rundll32.exe	84
PID 4708 wrote to memory of 3728	4708	rundll32.exe	84
PID 3728 wrote to memory of 4860	3728	rundll32mgr.exe	85
PID 3728 wrote to memory of 4860	3728	rundll32mgr.exe	85
PID 4860 wrote to memory of 3556	4860	iexplore.exe	86
PID 4860 wrote to memory of 3556	4860	iexplore.exe	86
PID 4860 wrote to memory of 3556	4860	iexplore.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4ce9b73db0da5195699660b8a44cb6b9f7529d85a4f84e3f9b2c2c7b54d793eN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:212
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a4ce9b73db0da5195699660b8a44cb6b9f7529d85a4f84e3f9b2c2c7b54d793eN.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4708
- - C:\Windows\SysWOW64\rundll32mgr.exe
    C:\Windows\SysWOW64\rundll32mgr.exe
    3⤵
    - 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:3728
  - - C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe"
      4⤵
      Modifies Internet Explorer settings
      Suspicious use of FindShellTrayWindow
      Suspicious use of SetWindowsHookEx
      Suspicious use of WriteProcessMemory
      PID:4860
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4860 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:3556

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
73d8dd7eaa8896905e31f1960f51ece1

SHA1
164e031603e75d95091220c5ff0d695547f6d3ae

SHA256
9ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc

SHA512
4879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04

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

Filesize
404B

MD5
09f24497eaa9928bb4147045cf2e8ee6

SHA1
ce9b629c98c733ac82ac5b0ca1508a71088dd2c0

SHA256
16eff8c168e35b14b10b386109f976353caf973ef3c255ff3b77ba9c98e3b9c2

SHA512
eaca7533d4c53daae083c23d1d519864df510292b2a0f9e70bfe1211e53e1101367f8410f615bc97360c08330d7f8b803ddeabdedade945ae4f9507ce81bbfd5

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\XH3Z2ZON\suggestions[1].en-US

Filesize
17KB

MD5
5a34cb996293fde2cb7a4ac89587393a

SHA1
3c96c993500690d1a77873cd62bc639b3a10653f

SHA256
c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

SHA512
e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

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

Filesize
88KB

MD5
fe76e62c9c90a4bea8f2c464dc867719

SHA1
f0935e8b6c22dea5c6e9d4127f5c10363deba541

SHA256
5705c47b229c893f67741480ed5e3bce60597b2bb0dd755fb1f499a23888d7d6

SHA512
7d6d5bfb10df493ffea7132807be417b5a283d34a1cd49042390b2b927691fd53ecf8eee459c727844395f34e4230b2cd85b38b7fb7df0a3638b244d0c3f6394

Download Submit
memory/3728-9-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-6-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-15-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-13-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-4-0x0000000000400000-0x0000000000420000-memory.dmp

Filesize
128KB

Download
memory/3728-11-0x00000000006A0000-0x00000000006A1000-memory.dmp

Filesize
4KB

Download
memory/3728-8-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-18-0x0000000077BA2000-0x0000000077BA3000-memory.dmp

Filesize
4KB

Download
memory/3728-7-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-17-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/3728-16-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-20-0x0000000077BA2000-0x0000000077BA3000-memory.dmp

Filesize
4KB

Download
memory/3728-14-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/3728-10-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/4708-1-0x0000000010000000-0x000000001001F000-memory.dmp

Filesize
124KB

Download