ramnit | 2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fc

Analysis

max time kernel
110s
max time network
92s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
17-12-2024 01:56

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General

Target

2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fcN.dll
Size

200KB
MD5

edf2ff7e9630753b934a75dbb68c6c70
SHA1

1e7c732e560d919ba385f820475285cf671dddab
SHA256

2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fc
SHA512

51d9d19a27754de7412196c8764ea8d049d52de2edd821d2e3add1168c2fd39fb7ee4212348e26c35ff214144ec8511feb38838c15ab77c18c91b834f7958892
SSDEEP

6144:vukYWCETm5kGEiSQ47x6naOe0HjkVUGARtjk1jQi:vukphTjGwB7SaOeCeUGYiEi

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
1828	regsvr32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
1828	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32mgr.exe	regsvr32.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1828-6-0x0000000000400000-0x000000000046C000-memory.dmp	upx
behavioral2/memory/1828-10-0x0000000000400000-0x000000000046C000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 2 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	regsvr32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	regsvr32mgr.exe

Modifies registry class 37 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\NumMethods\ = "33"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ = "PSFactoryBuffer"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\NumMethods\ = "24"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\ = "IVideoSet3"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\NumMethods\ = "5"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\WOW6432Node\Interface	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\NumMethods	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\NumMethods\ = "18"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\ = "IDxvaConfig"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\ = "IVideoSet2"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ = "IVideoSet"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\ = "ICLAudProp3"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fcN.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\NumMethods	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\NumMethods\ = "47"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\NumMethods	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000_Classes\WOW6432Node\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\NumMethods	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4320 wrote to memory of 316	4320	regsvr32.exe	83
PID 4320 wrote to memory of 316	4320	regsvr32.exe	83
PID 4320 wrote to memory of 316	4320	regsvr32.exe	83
PID 316 wrote to memory of 1828	316	regsvr32.exe	84
PID 316 wrote to memory of 1828	316	regsvr32.exe	84
PID 316 wrote to memory of 1828	316	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fcN.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4320
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\2ca09185bf4c9a91fbe61dc5c647747ffab0b0b4df1610369e2be0d40a7213fcN.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:1828

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

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\Local\Temp\~TMCDCF.tmp

Filesize
1.6MB

MD5
4f3387277ccbd6d1f21ac5c07fe4ca68

SHA1
e16506f662dc92023bf82def1d621497c8ab5890

SHA256
767a3fc4a7a6818cdc3f0b99aaa95db694f6bcde719d2057a88b3d4df3d74fac

SHA512
9da199ac69e3c0d4e0c6307e0ab8178f12cc25cb2f14c3511f6b64e6e60a925c860f3263cb38353a97b55a71ef4d27f8cb7fa3cfc08e7c1a349fd8d209dfa219

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

Filesize
167KB

MD5
e43a097cc7df0279fb460c3c2858a213

SHA1
458585dfec655f654e2d892881bfa130d468115e

SHA256
b4ebb74b48c1d2041c8795cc0b75657eb0e221305d505af15127d8fd2a674da5

SHA512
f187d3643d44a3d93b851015e966a630c0825b31f97ac5dcfc31d753acf5ee3d6677f4467e20c734370549f70b5a87fc6ccd2d1912e2d63d01d1bf503e425377

Download Submit
memory/316-1-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download
memory/1828-5-0x0000000002270000-0x0000000002370000-memory.dmp

Filesize
1024KB

Download
memory/1828-6-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/1828-10-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download