084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055

General

Target

084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe
Size

60KB
MD5

03bf732bc84ed8a28e2a821bc505a1bf
SHA1

d313bb07bd7a62cfdc761125fdc5bd3396921786
SHA256

084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055
SHA512

e2771c4cc987e8d867e93d3507703eb97435d2da72900ca6f5bffe54d2427ae614392bd3e5a2d17c3262a0489618758e99abb56db1c0189534f005facc8d8620
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQW:OeodiUO4p13b9HiIeoutuh1aQW

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-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe

Executes dropped EXE 1 IoCs

pid	Process
4224	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"	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.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

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3644-0-0x0000000000A50000-0x0000000000A77000-memory.dmp	upx
behavioral2/files/0x0007000000023c8e-3.dat	upx
behavioral2/memory/4224-4-0x0000000000170000-0x0000000000197000-memory.dmp	upx
behavioral2/memory/3644-8-0x0000000000A50000-0x0000000000A77000-memory.dmp	upx
behavioral2/memory/4224-10-0x0000000000170000-0x0000000000197000-memory.dmp	upx
behavioral2/memory/4224-11-0x0000000000170000-0x0000000000197000-memory.dmp	upx

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	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.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	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe
Token: SeDebugPrivilege	4224	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 4224	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	83
PID 3644 wrote to memory of 4224	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	83
PID 3644 wrote to memory of 4224	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	83
PID 3644 wrote to memory of 3128	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	86
PID 3644 wrote to memory of 3128	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	86
PID 3644 wrote to memory of 3128	3644	084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe	86

C:\Users\Admin\AppData\Local\Temp\084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe
"C:\Users\Admin\AppData\Local\Temp\084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.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:3644
- 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:4224
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\084474df8d26e27b1a0644a5ef9dcea45f43e5a7ad631b8a0e27b6016ba9b055.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3128

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\ProgramData\AhnLab\AhnSvc.exe

Filesize
60KB

MD5
138e6d41e45b11c0762300a78192d710

SHA1
fcfa05955fa4e22aa4ec5572ea152af4fae6e855

SHA256
494eb5aa68e01da2dc0c5a029b681db945dc9ef121dec81e12915015eae3afc3

SHA512
46841faa6a05df7cac59a5cb50e9a7823091135b3ee69e52a94859edd879c41de1ad0b1c44f1b88fb7af11333a94aa0acf1e10bf7a3e7b0ee54b146d51d48cc0

Download Submit
memory/3644-0-0x0000000000A50000-0x0000000000A77000-memory.dmp

Filesize
156KB

Download
memory/3644-8-0x0000000000A50000-0x0000000000A77000-memory.dmp

Filesize
156KB

Download
memory/4224-4-0x0000000000170000-0x0000000000197000-memory.dmp

Filesize
156KB

Download
memory/4224-10-0x0000000000170000-0x0000000000197000-memory.dmp

Filesize
156KB

Download
memory/4224-11-0x0000000000170000-0x0000000000197000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads