461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78

General

Target

461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe
Size

307KB
MD5

6a809db0a894a6dc1f6453c47baef1ff
SHA1

2057c211c46d9e4f0674a19935448b0fd31a7afa
SHA256

461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78
SHA512

bda190b37f0f27f4fd146ce2649837f0b082b581d64c6b5b77a6b7e1506c365e82038c70346c4ac7e66ce35b4d0e6693630e90b5bb63c3df0fe1c8a5479fe232
SSDEEP

6144:4PfifS+J4LgjPOAxoUwqtT2nPgwehhdMh9+dWdP+s:4PqfS+J4Lgj6UhtSowehhah9+wF

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4276	enkunku.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe

Loads dropped DLL 1 IoCs

pid	Process
4276	enkunku.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Windows\CurrentVersion\RunOnce	461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe

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

System Information Discovery
T1082

Kills process with taskkill 1 IoCs

evasion

pid	Process
2624	taskkill.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
4004	PING.EXE

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4276	enkunku.exe
4276	enkunku.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4276	enkunku.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	taskkill.exe

Suspicious use of FindShellTrayWindow 3 IoCs

pid	Process
4276	enkunku.exe
4276	enkunku.exe
4276	enkunku.exe

Suspicious use of SendNotifyMessage 3 IoCs

pid	Process
4276	enkunku.exe
4276	enkunku.exe
4276	enkunku.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 3180 wrote to memory of 3888	3180	461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe	90
PID 3180 wrote to memory of 3888	3180	461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe	90
PID 3180 wrote to memory of 3888	3180	461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe	90
PID 3888 wrote to memory of 2624	3888	cmd.exe	92
PID 3888 wrote to memory of 2624	3888	cmd.exe	92
PID 3888 wrote to memory of 2624	3888	cmd.exe	92
PID 3888 wrote to memory of 4004	3888	cmd.exe	93
PID 3888 wrote to memory of 4004	3888	cmd.exe	93
PID 3888 wrote to memory of 4004	3888	cmd.exe	93
PID 3888 wrote to memory of 4276	3888	cmd.exe	94
PID 3888 wrote to memory of 4276	3888	cmd.exe	94
PID 3888 wrote to memory of 4276	3888	cmd.exe	94

C:\Users\Admin\AppData\Local\Temp\461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe
"C:\Users\Admin\AppData\Local\Temp\461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:3180
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\System32\cmd.exe" /c taskkill /f /pid 3180 & ping -n 3 127.1 & del /f /q "C:\Users\Admin\AppData\Local\Temp\461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78.exe" & start C:\Users\Admin\AppData\Local\enkunku.exe -f
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3888
- - C:\Windows\SysWOW64\taskkill.exe
    taskkill /f /pid 3180
    3⤵
    - Kills process with taskkill
    - Suspicious use of AdjustPrivilegeToken
    PID:2624
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 3 127.1
    3⤵
    - Runs ping.exe
    PID:4004
- - C:\Users\Admin\AppData\Local\enkunku.exe
    C:\Users\Admin\AppData\Local\enkunku.exe -f
    3⤵
    - Executes dropped EXE
    - Loads dropped DLL
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    PID:4276

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

Remote System Discovery

1

T1018

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\enkunku.exe

Filesize
307KB

MD5
6a809db0a894a6dc1f6453c47baef1ff

SHA1
2057c211c46d9e4f0674a19935448b0fd31a7afa

SHA256
461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78

SHA512
bda190b37f0f27f4fd146ce2649837f0b082b581d64c6b5b77a6b7e1506c365e82038c70346c4ac7e66ce35b4d0e6693630e90b5bb63c3df0fe1c8a5479fe232

Download Submit
C:\Users\Admin\AppData\Local\enkunku.exe

Filesize
307KB

MD5
6a809db0a894a6dc1f6453c47baef1ff

SHA1
2057c211c46d9e4f0674a19935448b0fd31a7afa

SHA256
461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78

SHA512
bda190b37f0f27f4fd146ce2649837f0b082b581d64c6b5b77a6b7e1506c365e82038c70346c4ac7e66ce35b4d0e6693630e90b5bb63c3df0fe1c8a5479fe232

Download Submit
C:\Users\Admin\AppData\Local\enkunku.exe

Filesize
307KB

MD5
6a809db0a894a6dc1f6453c47baef1ff

SHA1
2057c211c46d9e4f0674a19935448b0fd31a7afa

SHA256
461babea862884674941b3a8b6b03e0f9355717e81ea60f89ad5c8f9e195ac78

SHA512
bda190b37f0f27f4fd146ce2649837f0b082b581d64c6b5b77a6b7e1506c365e82038c70346c4ac7e66ce35b4d0e6693630e90b5bb63c3df0fe1c8a5479fe232

Download Submit
memory/3180-132-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download
memory/3180-133-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download
memory/3180-135-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download
memory/4276-143-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download
memory/4276-144-0x0000000001000000-0x00000000010FB000-memory.dmp

Filesize
1004KB

Download

Analysis

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