ramnit | 66cb992e9194b3aedc395b524e0764ced1adf8b7402da6d37e4dff1169fb1799

Analysis

max time kernel
150s
max time network
142s
platform
windows7_x64
resource
win7-20240708-en
resource tags

arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
submitted
28-01-2025 07:59

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General

Target

JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
Size

146KB
MD5

489aa8454c7b7fc22d00b5a0b2fa6c90
SHA1

1d3010b4115b0f048769d17efb64896fd2e99a79
SHA256

66cb992e9194b3aedc395b524e0764ced1adf8b7402da6d37e4dff1169fb1799
SHA512

7e8d9573b6f6ccfb7fbf2e78f2ec8b4366bfe233be1d7e44b80d2844a210c56cbb8508d0e23c71ec810283da76afb29aedf8b22d416975c6f6ae1ea16a8e3a8d
SSDEEP

3072:cw2QlyOvE56v31hiTHFPvN7MNJ+7zjwaaHw7Koj4rZ6UIs:nx8kKnN7Mb+7RZs

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\\ypikoosr\\hvawyocj.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\hvawyocj.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hvawyocj.exe	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
2872	ybxrbqesvtqpsntt.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
376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\HvaWyocj = "C:\\Users\\Admin\\AppData\\Local\\ypikoosr\\hvawyocj.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_489aa8454c7b7fc22d00b5a0b2fa6c90.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
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe
2784	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
472	Process not Found

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeSecurityPrivilege	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
Token: SeDebugPrivilege	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
Token: SeSecurityPrivilege	1716	svchost.exe
Token: SeSecurityPrivilege	2784	svchost.exe
Token: SeDebugPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeSecurityPrivilege	2872	ybxrbqesvtqpsntt.exe
Token: SeLoadDriverPrivilege	2872	ybxrbqesvtqpsntt.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe
Token: SeBackupPrivilege	2784	svchost.exe
Token: SeRestorePrivilege	2784	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 1716	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	30
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2784	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	31
PID 376 wrote to memory of 2872	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	32
PID 376 wrote to memory of 2872	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	32
PID 376 wrote to memory of 2872	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	32
PID 376 wrote to memory of 2872	376	JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe	32

C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe
"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_489aa8454c7b7fc22d00b5a0b2fa6c90.exe"
1⤵
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:376
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1716
- 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:2784
- C:\Users\Admin\AppData\Local\Temp\ybxrbqesvtqpsntt.exe
  "C:\Users\Admin\AppData\Local\Temp\ybxrbqesvtqpsntt.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2872

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\ypikoosr\hvawyocj.exe

Filesize
146KB

MD5
489aa8454c7b7fc22d00b5a0b2fa6c90

SHA1
1d3010b4115b0f048769d17efb64896fd2e99a79

SHA256
66cb992e9194b3aedc395b524e0764ced1adf8b7402da6d37e4dff1169fb1799

SHA512
7e8d9573b6f6ccfb7fbf2e78f2ec8b4366bfe233be1d7e44b80d2844a210c56cbb8508d0e23c71ec810283da76afb29aedf8b22d416975c6f6ae1ea16a8e3a8d

Download Submit
memory/376-77-0x0000000002580000-0x00000000025B9000-memory.dmp

Filesize
228KB

Download
memory/376-87-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/376-68-0x00000000774EF000-0x00000000774F0000-memory.dmp

Filesize
4KB

Download
memory/376-4-0x0000000000270000-0x0000000000271000-memory.dmp

Filesize
4KB

Download
memory/376-13-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/376-84-0x0000000002580000-0x00000000025B9000-memory.dmp

Filesize
228KB

Download
memory/376-76-0x0000000002580000-0x00000000025B9000-memory.dmp

Filesize
228KB

Download
memory/376-57-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/376-5-0x0000000000280000-0x0000000000281000-memory.dmp

Filesize
4KB

Download
memory/376-2-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/376-39-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/376-0-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/376-55-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/376-56-0x00000000774F0000-0x00000000774F1000-memory.dmp

Filesize
4KB

Download
memory/376-34-0x00000000774EF000-0x00000000774F0000-memory.dmp

Filesize
4KB

Download
memory/376-33-0x00000000774F0000-0x00000000774F1000-memory.dmp

Filesize
4KB

Download
memory/376-1-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/1716-23-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1716-14-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1716-9-0x0000000000050000-0x0000000000051000-memory.dmp

Filesize
4KB

Download
memory/1716-20-0x0000000000060000-0x0000000000061000-memory.dmp

Filesize
4KB

Download
memory/1716-19-0x0000000000050000-0x0000000000051000-memory.dmp

Filesize
4KB

Download
memory/1716-21-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1716-22-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1716-18-0x0000000000070000-0x0000000000071000-memory.dmp

Filesize
4KB

Download
memory/1716-7-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/2784-58-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-27-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-64-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-62-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-60-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-36-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-53-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-46-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-45-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-103-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-102-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-67-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-101-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-100-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-94-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-95-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-96-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-97-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-98-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2784-99-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/2872-93-0x0000000000400000-0x0000000000439000-memory.dmp

Filesize
228KB

Download
memory/2872-92-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/2872-89-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download
memory/2872-88-0x0000000000400000-0x0000000000438B40-memory.dmp

Filesize
226KB

Download