ramnit | b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd

Analysis

max time kernel
149s
max time network
158s
platform
windows11-21h2_x64
resource
win11-20260130-en
resource tags

arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
submitted
27/04/2026, 04:24

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General

Target
b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll
Size 1.9MB
Sample260427-e1wnesew2p
SHA256 b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd
MD5 9aae942822d6d9e0da6935917221964d
SHA1 7a08879b1a61b055b7039a5276f0d0ee4d58b6e8
SHA512 9941ab4f13234035c14771d6f3f319dace547e0d64ccdf976a20c461316d42cee63dbbeeb115895b98e1bec4128ec9a9d5a94a86c28149f11339efa69f5de2ed
SSDEEP 49152:+7cjMIjJO72wjWkz8BiKK+5fItthujPK6+L+aphkwkGZmoLY0Y0+JLzrcBE:+4jM8O72wjN8EJ+5fInhMPK6+L+a7r4E
TLSH
T12A959E217690C43AC52A3330924EA3BEB7FDD5704A7586879290DF7D3E345E2662C26F
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

banker discovery ramnit spyware stealer trojan upx worm

Malware Config

Signatures

Family: Ramnit
Ramnit is a versatile family that holds viruses, worms, and Trojans.
trojan spyware stealer worm banker ramnit

Executes dropped EXE 1 IoCs

pid	Process
2584	regsvr32Srv.exe

Drops file in System32 directory 1 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\regsvr32Srv.exe	regsvr32.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral2/files/0x000900000000d3d7-3.dat	upx
behavioral2/memory/2584-4-0x0000000000400000-0x000000000042E000-memory.dmp	upx
behavioral2/memory/2584-6-0x0000000000400000-0x000000000042E000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4036	2584	WerFault.exe	81

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	regsvr32Srv.exe

Modifies registry class 64 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib\ = "{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6253AF7-BE5D-4D81-97F4-4FF2743DE61C}\ = "SSCardDriver Property Page"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\ProgID	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\ProgID\ = "SSCARDDRIVER.SSCardDriverCtrl.1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\HELPDIR\	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib\Version = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\Control	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\Control\	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\0\win32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6253AF7-BE5D-4D81-97F4-4FF2743DE61C}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\InprocServer32\ThreadingModel = "Apartment"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\FLAGS	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\MiscStatus\1	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\FLAGS\ = "2"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6253AF7-BE5D-4D81-97F4-4FF2743DE61C}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\MiscStatus\ = "0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\ = "SSCardDriverLib"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib\ = "{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib\ = "{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ = "_DSSCardDriver"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ = "_DSSCardDriver"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\MiscStatus\1\ = "131473"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SSCARDDRIVER.SSCardDriverCtrl.1\CLSID\ = "{D9532F10-603B-4BF7-87AE-F4130EF43553}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SSCARDDRIVER.SSCardDriverCtrl.1\CLSID	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\0	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\0\win32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\ToolboxBitmap32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll, 1"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\ = "SSCardDriver Control"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\InprocServer32\ = "C:\\Users\\Admin\\AppData\\Local\\Temp\\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\Version\ = "1.0"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ProxyStubClsid32\ = "{00020420-0000-0000-C000-000000000046}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{C6253AF7-BE5D-4D81-97F4-4FF2743DE61C}	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\SSCARDDRIVER.SSCardDriverCtrl.1\ = "SSCardDriver Control"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\TypeLib\ = "{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\ProxyStubClsid32	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib\Version = "1.0"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{12B6B039-FBFA-4CF2-8267-89206838C6A1}\TypeLib\ = "{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ProxyStubClsid32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\InprocServer32	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\MiscStatus	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\TypeLib	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\TypeLib\{E3F384ED-33A3-4F71-AF9B-86A38CA14AFB}\1.0\HELPDIR	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ = "_DSSCardDriverEvents"	regsvr32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\Interface\{87A6AA87-1740-4CA7-9AE0-54F136A484A6}\ = "_DSSCardDriverEvents"	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\SSCARDDRIVER.SSCardDriverCtrl.1	regsvr32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{D9532F10-603B-4BF7-87AE-F4130EF43553}\ToolboxBitmap32	regsvr32.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3408 wrote to memory of 1356	3408	regsvr32.exe	80
PID 1356 wrote to memory of 2584	1356	regsvr32.exe	81

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:3408
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b327bff86183bcac3345b241e206f3b6057168946f02e934f9813ca63b4ae8bd.dll
  2⤵
  - Drops file in System32 directory
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1356
- - C:\Windows\SysWOW64\regsvr32Srv.exe
    C:\Windows\SysWOW64\regsvr32Srv.exe
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:2584
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2584 -s 332
      4⤵
      Program crash
      PID:4036

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2584 -ip 2584
1⤵
PID:2956

Network

MITRE ATT&CK Enterprise v16

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

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Downloads

regsvr32Srv.exe

Path C:\Windows\SysWOW64\regsvr32Srv.exe
Size 55KB
SHA256 fd6c69c345f1e32924f0a5bb7393e191b393a78d58e2c6413b03ced7482f2320
MD5 ff5e1f27193ce51eec318714ef038bef
SHA1 b4fa74a6f4dab3a7ba702b6c8c129f889db32ca6
SHA512 c9d654ead35f40eea484a3dc5b5d0a44294b9e7b41a9bacdafdd463d3de9daa2a43237a5f113f6a9c8ea5e1366823fd3d83da18cd8197aa69a55e9f345512a7a
SSDEEP 1536:Q+hzRsibKplyXTq8OGRnsPFG+RODTb7MXL5uXZnzE:bROzoTq0+RO7IwnY
TLSH
T1EA43F2C6AE1903A2DF75053314E4C6B4CBA43C558B737A9EFA50002BFF89463A817F59
MD5 SHA1 SHA512 SSDEEP TLSH

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memory/1356-0-0x0000000074650000-0x000000007483E000-memory.dmp

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memory/2584-4-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2584-6-0x0000000000400000-0x000000000042E000-memory.dmp

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memory/2584-5-0x0000000002140000-0x000000000214F000-memory.dmp

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memory/3408-7-0x0000000001560000-0x000000000170C000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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