8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064

Analysis

max time kernel
147s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
13/09/2024, 00:21

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General

Target

8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe
Size

105KB
MD5

8609c55b9a2c900790ed2580b2afeb16
SHA1

168b47b1d93b6578236bb00e3930cd20b3a748d0
SHA256

8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064
SHA512

da38473f7974935abeeb2040a1260db4923dd308e819b48c18d96c5a327ec965958cb90370a4ebd4a165a22ca4b5aee8d01cef829f8838445a37cc7a90f53937
SSDEEP

1536:vE3qz4ayX9ioT5Xl8lQWj1vTo5G6kvBzodfjZw4jk5thwtso:C79l86WqGzIfjZwik5tpo

Score

7^/10

defense_evasion discovery persistence

Malware Config

Signatures

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-1-5-21-2392887640-1187051047-2909758433-1000\Control Panel\International\Geo\Nation	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe

Executes dropped EXE 1 IoCs

pid	Process
2680	AhnSvc.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\AhnUpadate = "\"C:\\ProgramData\\AhnLab\\AhnSvc.exe\" /run"	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe

Indicator Removal: File Deletion 1 TTPs
Adversaries may delete files left behind by the actions of their intrusion activity.
defense_evasion

File Deletion
T1070.004
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	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AhnSvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe
Token: SeDebugPrivilege	2680	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5104 wrote to memory of 2680	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	83
PID 5104 wrote to memory of 2680	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	83
PID 5104 wrote to memory of 2680	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	83
PID 5104 wrote to memory of 2916	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	84
PID 5104 wrote to memory of 2916	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	84
PID 5104 wrote to memory of 2916	5104	8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe	84

C:\Users\Admin\AppData\Local\Temp\8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe
"C:\Users\Admin\AppData\Local\Temp\8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5104
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2680
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\8bef3d970bf2b4e35850b6bb49c754a1e7750a0cb3b9ad4c1cc328518b8ff064.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2916

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

Indicator Removal

T1070

File Deletion

T1070.004

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:\ProgramData\AhnLab\AhnSvc.exe

Filesize
105KB

MD5
5d1ce431833d5a6f2f4e57135c4de9d3

SHA1
f536b26cc517d160f958a559143c063b2d17b487

SHA256
38442d08070ec362b2d66b44326981924142435e0eccfa53a0ca717941fa57fa

SHA512
3b7fd7ba6bb8dc431b996b53506d378491ccb5a07446f484c40237a8772aa28dae1929c4590055ba5883dbb2fc76a419c1e4d18f56907445382e7a07aa90cce6

Download Submit
memory/2680-6-0x0000000000440000-0x000000000045F000-memory.dmp

Filesize
124KB

Download
memory/2680-9-0x0000000000440000-0x000000000045F000-memory.dmp

Filesize
124KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads