1419745b3f6ffe0db358fc0d321a2e9110f1d7088d59587db145b492cf514b48

General

Target

d11668d21bfa63da5e82ba90d3b0eba0N.exe
Size

59KB
MD5

d11668d21bfa63da5e82ba90d3b0eba0
SHA1

78aad0cfc1c8b19e78a9ef3b7f77bd577ce232d7
SHA256

1419745b3f6ffe0db358fc0d321a2e9110f1d7088d59587db145b492cf514b48
SHA512

a54c7a14ec467896c14bd63a59033fcf6a170b71585ce23f0bb8819cdbc18358fc37c24420e6727071dbb720353cbfe2d245ebbfb08bc3f068bdd84f4724a84b
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQ+:OeodiUO4p13b9HiIeoutuh1aQ+

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-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	d11668d21bfa63da5e82ba90d3b0eba0N.exe

Executes dropped EXE 1 IoCs

pid	Process
1212	AhnSvc.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3644-0-0x0000000000D60000-0x0000000000D87000-memory.dmp	upx
behavioral2/files/0x000800000002343a-3.dat	upx
behavioral2/memory/1212-4-0x0000000000720000-0x0000000000747000-memory.dmp	upx
behavioral2/memory/3644-8-0x0000000000D60000-0x0000000000D87000-memory.dmp	upx
behavioral2/memory/1212-9-0x0000000000720000-0x0000000000747000-memory.dmp	upx
behavioral2/memory/1212-10-0x0000000000720000-0x0000000000747000-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"	d11668d21bfa63da5e82ba90d3b0eba0N.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	d11668d21bfa63da5e82ba90d3b0eba0N.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	d11668d21bfa63da5e82ba90d3b0eba0N.exe
Token: SeDebugPrivilege	1212	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3644 wrote to memory of 1212	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	83
PID 3644 wrote to memory of 1212	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	83
PID 3644 wrote to memory of 1212	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	83
PID 3644 wrote to memory of 3392	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	86
PID 3644 wrote to memory of 3392	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	86
PID 3644 wrote to memory of 3392	3644	d11668d21bfa63da5e82ba90d3b0eba0N.exe	86

C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.exe
"C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.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:1212
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\d11668d21bfa63da5e82ba90d3b0eba0N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3392

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
6fe39e3d323b03aedc6c67bcf5840230

SHA1
36e06f77d3149835758834c46b785b72dc61b5fc

SHA256
0fbe16548c85e4a987a44399a48ecf7c4657901912c0d7ff19133be6ff6e6263

SHA512
9537ae8c85b092620655a4cc7747fe6d821eee012af9a996067704da786d806c8fc69157f656c120ff97ca2eb002d5ee21a3787c8a8d32ff03860b583abe335f

Download Submit
memory/1212-4-0x0000000000720000-0x0000000000747000-memory.dmp

Filesize
156KB

Download
memory/1212-9-0x0000000000720000-0x0000000000747000-memory.dmp

Filesize
156KB

Download
memory/1212-10-0x0000000000720000-0x0000000000747000-memory.dmp

Filesize
156KB

Download
memory/3644-0-0x0000000000D60000-0x0000000000D87000-memory.dmp

Filesize
156KB

Download
memory/3644-8-0x0000000000D60000-0x0000000000D87000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads