ramnit | 738839a9c34f553b4ac6fcd68780f6e859f6a7f889dc7166d430ac39d0aa2969

Analysis

max time kernel
150s
max time network
143s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
22-01-2025 18:02

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General

Target

JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
Size

554KB
MD5

0fefcde2309e584f6cdee61cd275d4e6
SHA1

168df2c1a2d2cba83436a1fcd2cb5b189107aebe
SHA256

738839a9c34f553b4ac6fcd68780f6e859f6a7f889dc7166d430ac39d0aa2969
SHA512

9bf4b48ef44c701bee08f13ea3e78a47cad33e46591ce6299f8eb1951fb3b43977dfd6acec6a9a1d17485f73217a27d0da4ed117195cb7c747112a207eef6b08
SSDEEP

12288:VWr7g71NNWLgIYGLNtLoRo5IMMIZLwwTUKqQ:swzEyCB0UUY

Score

10^/10

ramnit banker defense_evasion discovery persistence spyware stealer trojan worm

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Users\\Admin\\AppData\\Local\\qlfoarxf\\yrwbkuhv.exe"	svchost.exe

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

UAC bypass 3 TTPs 1 IoCs

defense_evasion trojan

Bypass User Account Control

T1548.002

Disable or Modify Tools

T1562.001

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA = "0"	svchost.exe

Checks BIOS information in registry 2 TTPs 1 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	svchost.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yrwbkuhv.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\yrwbkuhv.exe	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2704	qwuvmwgctbwhfcmt.exe

Impair Defenses: Safe Mode Boot 1 TTPs 3 IoCs

defense_evasion

Safe Mode Boot

T1562.009

description	ioc	Process
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\WinDefend	svchost.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\ProfSvc	svchost.exe
Key deleted	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\SafeBoot\Minimal\Power	svchost.exe

Loads dropped DLL 4 IoCs

pid	Process
2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\YrwBkuhv = "C:\\Users\\Admin\\AppData\\Local\\qlfoarxf\\yrwbkuhv.exe"	svchost.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	svchost.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe
2960	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
476	Process not Found

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeSecurityPrivilege	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
Token: SeDebugPrivilege	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
Token: SeSecurityPrivilege	484	svchost.exe
Token: SeSecurityPrivilege	2960	svchost.exe
Token: SeDebugPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeSecurityPrivilege	2704	qwuvmwgctbwhfcmt.exe
Token: SeLoadDriverPrivilege	2704	qwuvmwgctbwhfcmt.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe
Token: SeBackupPrivilege	2960	svchost.exe
Token: SeRestorePrivilege	2960	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 484	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	30
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2960	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	31
PID 2328 wrote to memory of 2704	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	32
PID 2328 wrote to memory of 2704	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	32
PID 2328 wrote to memory of 2704	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	32
PID 2328 wrote to memory of 2704	2328	JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0fefcde2309e584f6cdee61cd275d4e6.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2328
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:484
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - Modifies WinLogon for persistence
  - UAC bypass
  - Checks BIOS information in registry
  - Drops startup file
  - Impair Defenses: Safe Mode Boot
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2960
- C:\Users\Admin\AppData\Local\Temp\qwuvmwgctbwhfcmt.exe
  "C:\Users\Admin\AppData\Local\Temp\qwuvmwgctbwhfcmt.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2704

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Abuse Elevation Control Mechanism

T1548

Bypass User Account Control

T1548.002

Impair Defenses

T1562

Disable or Modify Tools

T1562.001

Safe Mode Boot

T1562.009

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\qlfoarxf\yrwbkuhv.exe

Filesize
554KB

MD5
0fefcde2309e584f6cdee61cd275d4e6

SHA1
168df2c1a2d2cba83436a1fcd2cb5b189107aebe

SHA256
738839a9c34f553b4ac6fcd68780f6e859f6a7f889dc7166d430ac39d0aa2969

SHA512
9bf4b48ef44c701bee08f13ea3e78a47cad33e46591ce6299f8eb1951fb3b43977dfd6acec6a9a1d17485f73217a27d0da4ed117195cb7c747112a207eef6b08

Download Submit
memory/484-17-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/484-20-0x00000000000A0000-0x00000000000A1000-memory.dmp

Filesize
4KB

Download
memory/484-21-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/484-22-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/484-23-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/484-10-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/484-8-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/484-15-0x0000000000090000-0x0000000000091000-memory.dmp

Filesize
4KB

Download
memory/484-14-0x00000000000B0000-0x00000000000B1000-memory.dmp

Filesize
4KB

Download
memory/2328-34-0x000000007715F000-0x0000000077160000-memory.dmp

Filesize
4KB

Download
memory/2328-5-0x0000000000290000-0x0000000000291000-memory.dmp

Filesize
4KB

Download
memory/2328-56-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2328-33-0x0000000077160000-0x0000000077161000-memory.dmp

Filesize
4KB

Download
memory/2328-1-0x0000000000230000-0x0000000000232000-memory.dmp

Filesize
8KB

Download
memory/2328-4-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/2328-6-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2328-0-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2328-64-0x0000000002930000-0x000000000296A000-memory.dmp

Filesize
232KB

Download
memory/2328-2-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2328-65-0x0000000002930000-0x000000000296A000-memory.dmp

Filesize
232KB

Download
memory/2328-66-0x000000007715F000-0x0000000077160000-memory.dmp

Filesize
4KB

Download
memory/2328-73-0x0000000002940000-0x000000000297A000-memory.dmp

Filesize
232KB

Download
memory/2328-53-0x0000000077160000-0x0000000077161000-memory.dmp

Filesize
4KB

Download
memory/2328-55-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2704-81-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2704-78-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2704-82-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2704-76-0x0000000000400000-0x000000000043A000-memory.dmp

Filesize
232KB

Download
memory/2704-77-0x0000000000400000-0x0000000000439764-memory.dmp

Filesize
229KB

Download
memory/2960-85-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-95-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-51-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-27-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-45-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-84-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-44-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-93-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-94-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-35-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-96-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-97-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-98-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-99-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-100-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-101-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2960-102-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download