b93cab63961adeed176eb6e2fd8ec91bad4b50a079145ed53f59226436421401

General

Target

ce03c8cf40becfbbface398c63b09240N.exe
Size

59KB
MD5

ce03c8cf40becfbbface398c63b09240
SHA1

ac059776fff7c80677f922e4554b9230590f233c
SHA256

b93cab63961adeed176eb6e2fd8ec91bad4b50a079145ed53f59226436421401
SHA512

7f8d658e2f7182dbc8b8cd3c191382df1d13350af864ec33a373a71f3d7ec8693a98e3b0b32ed65f54c841ada07815559d3db92a0f79420c0845819dae6fe92f
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQ6:OeodiUO4p13b9HiIeoutuh1aQ6

Score

7^/10

defense_evasion discovery persistence upx

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-1-5-21-2990742725-2267136959-192470804-1000\Control Panel\International\Geo\Nation	ce03c8cf40becfbbface398c63b09240N.exe

Executes dropped EXE 1 IoCs

pid	Process
4372	AhnSvc.exe

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/1152-0-0x0000000000C20000-0x0000000000C47000-memory.dmp	upx
behavioral2/files/0x00080000000234cf-3.dat	upx
behavioral2/memory/4372-5-0x00000000007D0000-0x00000000007F7000-memory.dmp	upx
behavioral2/memory/1152-8-0x0000000000C20000-0x0000000000C47000-memory.dmp	upx
behavioral2/memory/4372-9-0x00000000007D0000-0x00000000007F7000-memory.dmp	upx
behavioral2/memory/4372-10-0x00000000007D0000-0x00000000007F7000-memory.dmp	upx

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"	ce03c8cf40becfbbface398c63b09240N.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	ce03c8cf40becfbbface398c63b09240N.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	1152	ce03c8cf40becfbbface398c63b09240N.exe
Token: SeDebugPrivilege	4372	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1152 wrote to memory of 4372	1152	ce03c8cf40becfbbface398c63b09240N.exe	84
PID 1152 wrote to memory of 4372	1152	ce03c8cf40becfbbface398c63b09240N.exe	84
PID 1152 wrote to memory of 4372	1152	ce03c8cf40becfbbface398c63b09240N.exe	84
PID 1152 wrote to memory of 4556	1152	ce03c8cf40becfbbface398c63b09240N.exe	85
PID 1152 wrote to memory of 4556	1152	ce03c8cf40becfbbface398c63b09240N.exe	85
PID 1152 wrote to memory of 4556	1152	ce03c8cf40becfbbface398c63b09240N.exe	85

C:\Users\Admin\AppData\Local\Temp\ce03c8cf40becfbbface398c63b09240N.exe
"C:\Users\Admin\AppData\Local\Temp\ce03c8cf40becfbbface398c63b09240N.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:1152
- 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:4372
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\ce03c8cf40becfbbface398c63b09240N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:4556

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Indicator Removal

1

T1070

File Deletion

Modify Registry

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\AhnLab\AhnSvc.exe

Filesize
59KB

MD5
337db44f67cf2baa3ae0f7babfd75078

SHA1
7da3f34bfff10620cf5ff7a312d1a155aeed3844

SHA256
e6f6ce3d43000d22b3319c7898d3076048bdc3a0f2a35f17887a7faf67fd0eec

SHA512
5ba4ad71b83704f83bf75ab2c96459344ecda1bead06cc6f090b11d0f33e0d4061c4c0fe5acb51d53c148ca764edf990f401a1a45172993567e72fd87c5080e2

Download Submit
memory/1152-0-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/1152-8-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/4372-5-0x00000000007D0000-0x00000000007F7000-memory.dmp

Filesize
156KB

Download
memory/4372-9-0x00000000007D0000-0x00000000007F7000-memory.dmp

Filesize
156KB

Download
memory/4372-10-0x00000000007D0000-0x00000000007F7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads