28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a

Analysis

max time kernel
150s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
09-03-2024 21:26

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General

Target

28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe
Size

69KB
MD5

748aaaf33c6c8889b363bcaff602b800
SHA1

d264de1f67f0ee7165cef3e887b6f8d24eca63e2
SHA256

28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a
SHA512

25d0421e8fec10af5f2959984ba8039c6e4fce128306b811114a4d8ab630ad8bc3f05343c6dbbe8688da958c978dcf2fe0c56fe59e69ee21b442b81b20559629
SSDEEP

768:xLzrPIsVU080KYmz/IfhX5GaeimBYsHotogR8ARwre7zgVqMNWcRFD7Dpz:lvU080dGSh4Fb08ATzgV5Wcz

Score

9^/10

persistence

Malware Config

Signatures

Detects executables built or packed with MPress PE compressor 6 IoCs

resource	yara_rule
behavioral2/memory/3060-0-0x0000000000400000-0x0000000000421000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/files/0x0008000000023201-3.dat	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4764-5-0x0000000000400000-0x0000000000421000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/3060-8-0x0000000000400000-0x0000000000421000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4764-9-0x0000000000400000-0x0000000000421000-memory.dmp	INDICATOR_EXE_Packed_MPress
behavioral2/memory/4764-12-0x0000000000400000-0x0000000000421000-memory.dmp	INDICATOR_EXE_Packed_MPress

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-1-5-21-983155329-280873152-1838004294-1000\Control Panel\International\Geo\Nation	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe

Executes dropped EXE 1 IoCs

pid	Process
4764	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"	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe
Token: SeDebugPrivilege	4764	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3060 wrote to memory of 4764	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	89
PID 3060 wrote to memory of 4764	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	89
PID 3060 wrote to memory of 4764	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	89
PID 3060 wrote to memory of 4116	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	91
PID 3060 wrote to memory of 4116	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	91
PID 3060 wrote to memory of 4116	3060	28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe	91

C:\Users\Admin\AppData\Local\Temp\28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe
"C:\Users\Admin\AppData\Local\Temp\28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3060
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4764
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\28224b017582229e685adf5a585a8894d94cbdc673792c9545272b974daedd3a.exe" >> NUL
  2⤵
  PID:4116

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

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Downloads

C:\ProgramData\AhnLab\AhnSvc.exe

Filesize
69KB

MD5
e34a621d6fb196fa036d619b0e2622e2

SHA1
51cff8bfd2b1833d60395fcfa784b6d6bccc23b4

SHA256
ff038f418deaef02f88b757c8c3511d7b7a39a3fdbd3c7fbc7924444338b069c

SHA512
35887b56b3141f37566e98800e84c1025724c6639d2586eda6bcb6351a0bfa2c36483757ae64b93bc6ae71345cd16c55f0fc1e8eee8c7f6ef3efa9b65cb9a243

Download Submit
memory/3060-0-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/3060-8-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4764-5-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4764-9-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download
memory/4764-12-0x0000000000400000-0x0000000000421000-memory.dmp

Filesize
132KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads