ramnit | c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

Analysis

max time kernel
150s
max time network
121s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 05:25

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General

Target

c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
Size

124KB
MD5

f18c1777c01789d0a0e149995fff2066
SHA1

021ffc155a3c882c5863d12b15d8ac37d50bb242
SHA256

c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f
SHA512

36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd
SSDEEP

3072:zAK0CBezOU+8isBve4bF3u5jwaaHw7Koj4rIJ9+8bpb:83z+svb1uzDb

Score

10^/10

ramnit banker evasion persistence spyware stealer trojan worm

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

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\\ejfpsxuk\\mpwcgbeb.exe"	svchost.exe

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

UAC bypass 3 TTPs 1 IoCs

evasion trojan

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

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

Executes dropped EXE 1 IoCs

pid	Process
1028	eurwidghbtyedett.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\mpwcgbeb.exe	svchost.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\mpwcgbeb.exe	svchost.exe

Loads dropped DLL 4 IoCs

pid	Process
756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\MpwCgbeb = "C:\\Users\\Admin\\AppData\\Local\\ejfpsxuk\\mpwcgbeb.exe"	svchost.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 43 IoCs

pid	Process
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe
952	svchost.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
464	Process not Found

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeSecurityPrivilege	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
Token: SeDebugPrivilege	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
Token: SeSecurityPrivilege	1976	svchost.exe
Token: SeSecurityPrivilege	952	svchost.exe
Token: SeDebugPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeSecurityPrivilege	1028	eurwidghbtyedett.exe
Token: SeLoadDriverPrivilege	1028	eurwidghbtyedett.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe
Token: SeBackupPrivilege	952	svchost.exe
Token: SeRestorePrivilege	952	svchost.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 1976	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	28
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 952	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	29
PID 756 wrote to memory of 1028	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	30
PID 756 wrote to memory of 1028	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	30
PID 756 wrote to memory of 1028	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	30
PID 756 wrote to memory of 1028	756	c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe	30

C:\Users\Admin\AppData\Local\Temp\c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe
"C:\Users\Admin\AppData\Local\Temp\c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f.exe"
1⤵
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:756
- C:\Windows\SysWOW64\svchost.exe
  C:\Windows\system32\svchost.exe
  2⤵
  - Suspicious use of AdjustPrivilegeToken
  PID:1976
- 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
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:952
- C:\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe
  "C:\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1028

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Bypass User Account Control

T1088

Defense Evasion

Bypass User Account Control

T1088

Disabling Security Tools

T1089

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe

Filesize
124KB

MD5
f18c1777c01789d0a0e149995fff2066

SHA1
021ffc155a3c882c5863d12b15d8ac37d50bb242

SHA256
c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

SHA512
36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd

Download Submit
\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe

Filesize
124KB

MD5
f18c1777c01789d0a0e149995fff2066

SHA1
021ffc155a3c882c5863d12b15d8ac37d50bb242

SHA256
c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

SHA512
36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd

Download Submit
\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe

Filesize
124KB

MD5
f18c1777c01789d0a0e149995fff2066

SHA1
021ffc155a3c882c5863d12b15d8ac37d50bb242

SHA256
c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

SHA512
36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd

Download Submit
\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe

Filesize
124KB

MD5
f18c1777c01789d0a0e149995fff2066

SHA1
021ffc155a3c882c5863d12b15d8ac37d50bb242

SHA256
c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

SHA512
36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd

Download Submit
\Users\Admin\AppData\Local\Temp\eurwidghbtyedett.exe

Filesize
124KB

MD5
f18c1777c01789d0a0e149995fff2066

SHA1
021ffc155a3c882c5863d12b15d8ac37d50bb242

SHA256
c5d60ed962af09c1aa32eca24c4a4e392c49f152e724bf5cb4f96fa42875ad8f

SHA512
36b0a596d48ac58359c38beb2e53f339f499fa9064e96abea509a4c1e0bc20ca2cde061e1af3a4069359daa2aad68be254b476703ac30b94f24e17e80c7ee6cd

Download Submit
memory/756-73-0x0000000000400000-0x0000000000439FE4-memory.dmp

Filesize
231KB

Download
memory/756-54-0x0000000075831000-0x0000000075833000-memory.dmp

Filesize
8KB

Download
memory/952-65-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/952-69-0x0000000020010000-0x000000002002C000-memory.dmp

Filesize
112KB

Download
memory/1028-81-0x0000000000400000-0x0000000000439FE4-memory.dmp

Filesize
231KB

Download
memory/1028-82-0x0000000000400000-0x0000000000439FE4-memory.dmp

Filesize
231KB

Download
memory/1976-59-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download
memory/1976-56-0x0000000020010000-0x000000002001C000-memory.dmp

Filesize
48KB

Download