ramnit | a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f

Analysis

max time kernel
110s
max time network
96s
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 01:43

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General

Target

a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f.dll
Size

200KB
MD5

382e41beca92978ccccf0a61ac55c9de
SHA1

9547e9df034f67966c3318e14b6c09244893a102
SHA256

a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f
SHA512

f957102e693eeef5646a8e3c55c7904d3a23d56d821385374190b7f6713e26fdf892dbce2a1235ef0b2e1daa5c1e8fff668eec04d24a5fa3693de7aed6c266f6
SSDEEP

6144:vukYWCETm5kGEiSQ47x6naOe0HjkVUGARtjk1jQG:vukphTjGwB7SaOeCeUGYiEG

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
2440	regsvr32mgr.exe

Loads dropped DLL 1 IoCs

pid	Process
2440	regsvr32mgr.exe

Drops file in System32 directory 1 IoCs

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

UPX packed file 1 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2440-6-0x0000000000400000-0x000000000046C000-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
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\ = "IVideoSet2"	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}\NumMethods\ = "47"	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\{E972830F-9A57-49D4-90A0-D3D289C71CF2}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\NumMethods\ = "24"	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\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ = "PSFactoryBuffer"	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\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\NumMethods\ = "33"	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-1-5-21-4089630652-1596403869-279772308-1000_Classes\WOW6432Node\CLSID	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\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
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\{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}\ = "ICLAudProp3"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32\ThreadingModel = "Both"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{E972830F-9A57-49D4-90A0-D3D289C71CF2}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{66AA0EC6-10E5-494C-AE9B-5541264CE597}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\ProxyStubClsid32\ = "{509C4001-13C5-11D5-8F2A-0080C84E9C39}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{F4A7B79D-4473-4C4F-8F26-E240BFEDB72A}\ = "IVideoSet3"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\ = "IDxvaConfig"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{FC8869C0-D263-49FE-BF43-4682BF7EA183}\NumMethods	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\CLSID\{509C4001-13C5-11D5-8F2A-0080C84E9C39}\InProcServer32	regsvr32.exe
Key created	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000_Classes\WOW6432Node\Interface	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}\NumMethods\ = "18"	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\{FC8869C0-D263-49FE-BF43-4682BF7EA183}	regsvr32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4760 wrote to memory of 4388	4760	regsvr32.exe	82
PID 4760 wrote to memory of 4388	4760	regsvr32.exe	82
PID 4760 wrote to memory of 4388	4760	regsvr32.exe	82
PID 4388 wrote to memory of 2440	4388	regsvr32.exe	83
PID 4388 wrote to memory of 2440	4388	regsvr32.exe	83
PID 4388 wrote to memory of 2440	4388	regsvr32.exe	83

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:4760
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\a6f86629c019681317720da4201d667f3215ee4061a6cebfebfa1b12df35263f.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:4388
- - C:\Windows\SysWOW64\regsvr32mgr.exe
    C:\Windows\SysWOW64\regsvr32mgr.exe
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - System Location Discovery: System Language Discovery
    PID:2440

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\~TM6F63.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/2440-5-0x0000000002200000-0x0000000002300000-memory.dmp

Filesize
1024KB

Download
memory/2440-6-0x0000000000400000-0x000000000046C000-memory.dmp

Filesize
432KB

Download
memory/4388-1-0x0000000010000000-0x0000000010032000-memory.dmp

Filesize
200KB

Download