b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc

General

Target

b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe
Size

59KB
MD5

a07117e95130fb30aa1438e04afbbdbf
SHA1

5835ee054fe52469c873bcde30f0db11a2e54ee8
SHA256

b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc
SHA512

1cb0be3d384f3b3a8e85be190a4275197eee3ccaf3f87e8768de13c1663f95ccb07b85f8c5b3cb7dfc0a66b3b812e07873d4cb5912b98e3acc4e09bd721f3a4b
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQo:OeodiUO4p13b9HiIeoutuh1aQo

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-1-5-21-786284298-625481688-3210388970-1000\Control Panel\International\Geo\Nation	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe

Executes dropped EXE 1 IoCs

pid	Process
4664	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"	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.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/4680-0-0x0000000000D70000-0x0000000000D97000-memory.dmp	upx
behavioral2/memory/4664-4-0x0000000000B20000-0x0000000000B47000-memory.dmp	upx
behavioral2/files/0x0008000000023435-5.dat	upx
behavioral2/memory/4680-8-0x0000000000D70000-0x0000000000D97000-memory.dmp	upx
behavioral2/memory/4664-9-0x0000000000B20000-0x0000000000B47000-memory.dmp	upx
behavioral2/memory/4664-10-0x0000000000B20000-0x0000000000B47000-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	AhnSvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe
Token: SeDebugPrivilege	4664	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4680 wrote to memory of 4664	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	82
PID 4680 wrote to memory of 4664	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	82
PID 4680 wrote to memory of 4664	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	82
PID 4680 wrote to memory of 380	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	83
PID 4680 wrote to memory of 380	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	83
PID 4680 wrote to memory of 380	4680	b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe	83

C:\Users\Admin\AppData\Local\Temp\b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe
"C:\Users\Admin\AppData\Local\Temp\b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.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:4680
- 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:4664
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\b2e9c113bf5dac68b4ead6af290d78d1bf6fb3a21f39f3e3245eb5f46c7749dc.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:380

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
460646c9d95c9caec937afe40ae6896c

SHA1
9a99ea1844f831351c5161822e4017a6c35cdbe6

SHA256
88ba75dd7e4e527b19e6a179fed8f6fd8c10536be9ce78f7583d1ea018221124

SHA512
204dd34fe033ab9cf69e2a3f1e8616eb59bc85c86aa87ee7fbc06e78d1c222d5ef130e5e7720d2f68ef5a82bc9674e7cbcb2e2a78dff0ae0797acff48146fabd

Download Submit
memory/4664-4-0x0000000000B20000-0x0000000000B47000-memory.dmp

Filesize
156KB

Download
memory/4664-9-0x0000000000B20000-0x0000000000B47000-memory.dmp

Filesize
156KB

Download
memory/4664-10-0x0000000000B20000-0x0000000000B47000-memory.dmp

Filesize
156KB

Download
memory/4680-0-0x0000000000D70000-0x0000000000D97000-memory.dmp

Filesize
156KB

Download
memory/4680-8-0x0000000000D70000-0x0000000000D97000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads