28b55f54da3b83c3073dd90bee349019743536a52c117d8f939cf386d03d4739

Analysis

max time kernel
150s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
06-03-2024 04:46

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b68b975556de8ef75eb75f399d4d110c.exe
Size

548KB
MD5

b68b975556de8ef75eb75f399d4d110c
SHA1

55284730c447ccad1bfa2ae6ee17afdc47448017
SHA256

28b55f54da3b83c3073dd90bee349019743536a52c117d8f939cf386d03d4739
SHA512

5a0a1aa15c8d6dcffbd00b4b720101b76a44209ea3563e4e9b72272e33f0417d6acc6c0820270b0eb0308a79afbbf3085aa8638c07a56606354c5e8c8248ebcd
SSDEEP

12288:qSMMnMMMMMtwa5EZYfpmveKaaMn42AvSPk2rCUQJ7x5Jev5r9LZbjDQec8:qSMMnMMMMMtBsYfpoaau45acTUqfJCFV

Score

8^/10

evasion persistence

Malware Config

Signatures

Disables Task Manager via registry modification
evasion

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-1-5-21-2727153400-192325109-1870347593-1000\Control Panel\International\Geo\Nation	b68b975556de8ef75eb75f399d4d110c.exe

Executes dropped EXE 1 IoCs

pid	Process
2076	LkmHONmnjf.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-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LkmHONmnjf = "C:\\ProgramData\\LkmHONmnjf.exe"	b68b975556de8ef75eb75f399d4d110c.exe

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

System Information Discovery
T1082

Modifies Internet Explorer settings 1 TTPs 2 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\Software\Microsoft\Internet Explorer\Download	b68b975556de8ef75eb75f399d4d110c.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2727153400-192325109-1870347593-1000\SOFTWARE\Microsoft\Internet Explorer\Download\CheckExeSignatures = "no"	b68b975556de8ef75eb75f399d4d110c.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1384	b68b975556de8ef75eb75f399d4d110c.exe
1384	b68b975556de8ef75eb75f399d4d110c.exe
1384	b68b975556de8ef75eb75f399d4d110c.exe
1384	b68b975556de8ef75eb75f399d4d110c.exe
2076	LkmHONmnjf.exe
2076	LkmHONmnjf.exe
2076	LkmHONmnjf.exe
2076	LkmHONmnjf.exe

Suspicious behavior: RenamesItself 1 IoCs

pid	Process
1384	b68b975556de8ef75eb75f399d4d110c.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1384 wrote to memory of 2076	1384	b68b975556de8ef75eb75f399d4d110c.exe	90
PID 1384 wrote to memory of 2076	1384	b68b975556de8ef75eb75f399d4d110c.exe	90
PID 1384 wrote to memory of 2076	1384	b68b975556de8ef75eb75f399d4d110c.exe	90

System policy modification 1 TTPs 2 IoCs

evasion

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr = "1"	b68b975556de8ef75eb75f399d4d110c.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System	b68b975556de8ef75eb75f399d4d110c.exe

C:\Users\Admin\AppData\Local\Temp\b68b975556de8ef75eb75f399d4d110c.exe
"C:\Users\Admin\AppData\Local\Temp\b68b975556de8ef75eb75f399d4d110c.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of WriteProcessMemory
- System policy modification
PID:1384
- C:\ProgramData\LkmHONmnjf.exe
  "C:\ProgramData\LkmHONmnjf.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  PID:2076

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\LkmHONmnjf.exe

Filesize
548KB

MD5
b68b975556de8ef75eb75f399d4d110c

SHA1
55284730c447ccad1bfa2ae6ee17afdc47448017

SHA256
28b55f54da3b83c3073dd90bee349019743536a52c117d8f939cf386d03d4739

SHA512
5a0a1aa15c8d6dcffbd00b4b720101b76a44209ea3563e4e9b72272e33f0417d6acc6c0820270b0eb0308a79afbbf3085aa8638c07a56606354c5e8c8248ebcd

Download Submit
memory/1384-0-0x00000000025A0000-0x0000000002740000-memory.dmp

Filesize
1.6MB

Download
memory/1384-1-0x0000000000400000-0x0000000000685000-memory.dmp

Filesize
2.5MB

Download
memory/1384-21-0x0000000000400000-0x0000000000685000-memory.dmp

Filesize
2.5MB

Download
memory/2076-13-0x0000000000400000-0x0000000000685000-memory.dmp

Filesize
2.5MB

Download