ramnit | bc9c0e0ebbf2f2f0e5ce6b2907504ecabf46145d1159809d742de6dcaed29dcf

Analysis

max time kernel
95s
max time network
150s
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, 20:06

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General

Target
bc9c0e0ebbf2f2f0e5ce6b2907504ecabf46145d1159809d742de6dcaed29dcf.dll
Size 124KB
Sample241225-yvmccawjay
SHA256 bc9c0e0ebbf2f2f0e5ce6b2907504ecabf46145d1159809d742de6dcaed29dcf
MD5 daa45d7612ba5c09af73723ae271f68f
SHA1 20083b1389814ca8f109a87e0bf0add7712b9903
SHA512 64eb399d2b5b85745568b1834afc5c1f1f91e5283726f7ae671484730a5fc17f8f72c90fe2ed7fe9d72aaf25d96616e27b8d4591858155cc6d560699464bf249
SSDEEP 3072:Sjul6/5M7VmKeZ88Dkj7oR2SqwKJXtf5DGyVBQwIY6X4N:SocvZNDkYR2SqwK/AyVBQ9RIN
MD5 SHA1 SHA512 SSDEEP

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
3768	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/3768-11-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-14-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-16-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-15-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-12-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-13-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-7-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-8-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/3768-6-0x0000000000400000-0x000000000041A000-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
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\VersionManager	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2412808240"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2416872562"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{BB4CC2AB-C2FB-11EF-B319-DA67B56E6C1B} = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\GPU	IEXPLORE.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31151880"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441922165"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Main	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2412808240"	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151880"	iexplore.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running"	iexplore.exe
Set value (data)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31151880"	IEXPLORE.EXE
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\DomainSuggestion	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0"	iexplore.exe
Key created	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive	iexplore.exe
Set value (int)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200"	iexplore.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe
3768	rundll32mgr.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3768	rundll32mgr.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3328	iexplore.exe

Suspicious use of SetWindowsHookEx 6 IoCs

pid	Process
3328	iexplore.exe
3328	iexplore.exe
4152	IEXPLORE.EXE
4152	IEXPLORE.EXE
4152	IEXPLORE.EXE
4152	IEXPLORE.EXE

Suspicious use of UnmapMainImage 1 IoCs

pid	Process
3768	rundll32mgr.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 5096 wrote to memory of 844	5096	rundll32.exe	83
PID 5096 wrote to memory of 844	5096	rundll32.exe	83
PID 5096 wrote to memory of 844	5096	rundll32.exe	83
PID 844 wrote to memory of 3768	844	rundll32.exe	84
PID 844 wrote to memory of 3768	844	rundll32.exe	84
PID 844 wrote to memory of 3768	844	rundll32.exe	84
PID 3768 wrote to memory of 3328	3768	rundll32mgr.exe	85
PID 3768 wrote to memory of 3328	3768	rundll32mgr.exe	85
PID 3328 wrote to memory of 4152	3328	iexplore.exe	86
PID 3328 wrote to memory of 4152	3328	iexplore.exe	86
PID 3328 wrote to memory of 4152	3328	iexplore.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc9c0e0ebbf2f2f0e5ce6b2907504ecabf46145d1159809d742de6dcaed29dcf.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bc9c0e0ebbf2f2f0e5ce6b2907504ecabf46145d1159809d742de6dcaed29dcf.dll,#1
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:844
- - 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:3768
  - - 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:3328
    - - C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3328 CREDAT:17410 /prefetch:2
        5⤵
        System Location Discovery: System Language Discovery
        Modifies Internet Explorer settings
        Suspicious use of SetWindowsHookEx
        
        PID:4152

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

7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 471B
SHA256 9ff75ab638fe252bd0d04aea3f0ce38270ffc8df5db9399f9ea45aaef196dddc
MD5 73d8dd7eaa8896905e31f1960f51ece1
SHA1 164e031603e75d95091220c5ff0d695547f6d3ae
SHA512 4879585482992d7ea3ee02775b74592b06daab32a63dc7700dd4da40c45a524f3bcfc2beff928a85563f09ad0438be5b3e458bc3d0cd08ad146d416fec014a04
MD5 SHA1 SHA512

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7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Size 404B
SHA256 8a42419ed570d25bfd48f089a984f5dd5b3da870c3eff0a07df44d7cbb348533
MD5 f7f212eb5231f56430c97cb9b02c4c5c
SHA1 8f8afb57c445a51d339260bb9398332d7a2c5da1
SHA512 020a529034c1e41e265f4ea81a3f78ce2b2a1328122fc2285b2a17660ad1a0cd1daae2ea241710b98b59c2c4314b7848c1ad7c294e06a59d6355090d04c6b36a
MD5 SHA1 SHA512

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suggestions[1].en-US

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\8R55UT9S\suggestions[1].en-US
Size 17KB
SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
MD5 5a34cb996293fde2cb7a4ac89587393a
SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
MD5 SHA1 SHA512 SSDEEP

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rundll32mgr.exe

Path C:\Windows\SysWOW64\rundll32mgr.exe
Size 88KB
SHA256 5705c47b229c893f67741480ed5e3bce60597b2bb0dd755fb1f499a23888d7d6
MD5 fe76e62c9c90a4bea8f2c464dc867719
SHA1 f0935e8b6c22dea5c6e9d4127f5c10363deba541
SHA512 7d6d5bfb10df493ffea7132807be417b5a283d34a1cd49042390b2b927691fd53ecf8eee459c727844395f34e4230b2cd85b38b7fb7df0a3638b244d0c3f6394
SSDEEP 1536:U8kAw2xzZh2UXYmvdRmSZad2jN0RAkFc+rnTNTqKqx9YGng:DkAwOzhjdRmSZiAqFbrnp+KsYGng
MD5 SHA1 SHA512 SSDEEP

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memory/844-1-0x0000000010000000-0x000000001001F000-memory.dmp

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memory/3768-19-0x0000000076EF2000-0x0000000076EF3000-memory.dmp

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memory/3768-13-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-16-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-15-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-21-0x0000000000401000-0x0000000000405000-memory.dmp

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memory/3768-17-0x00000000006F0000-0x00000000006F1000-memory.dmp

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memory/3768-12-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-18-0x0000000076EF2000-0x0000000076EF3000-memory.dmp

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memory/3768-10-0x0000000000690000-0x0000000000691000-memory.dmp

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memory/3768-9-0x0000000000401000-0x0000000000405000-memory.dmp

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memory/3768-7-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-8-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-6-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-14-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-11-0x0000000000400000-0x000000000041A000-memory.dmp

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memory/3768-4-0x0000000000400000-0x0000000000420000-memory.dmp

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