e0d7fd07b3d410d7fff1645261e9ffef1959b783db1f71b20e4b80d9b81b05a8

General

Target

f09d0363bac4fde14dfff1e4fbd85350N.exe
Size

59KB
MD5

f09d0363bac4fde14dfff1e4fbd85350
SHA1

dac38a393bedf05506c1895041c58a6ea2f4f425
SHA256

e0d7fd07b3d410d7fff1645261e9ffef1959b783db1f71b20e4b80d9b81b05a8
SHA512

295668d8270f09486aacf43e21cb430ced21ca01d9160bcf50580cef6f706e2b0210fa454dd05ca2a43321e8a1766fac8b8f96391239fc6feae0abe5c45d78aa
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQj:OeodiUO4p13b9HiIeoutuh1aQj

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-1-5-21-2718105630-359604950-2820636825-1000\Control Panel\International\Geo\Nation	f09d0363bac4fde14dfff1e4fbd85350N.exe

Executes dropped EXE 1 IoCs

pid	Process
2360	AhnSvc.exe

UPX packed file 6 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1360-0-0x00000000008E0000-0x0000000000907000-memory.dmp	upx
behavioral2/memory/2360-4-0x0000000000BB0000-0x0000000000BD7000-memory.dmp	upx
behavioral2/files/0x00080000000234a0-3.dat	upx
behavioral2/memory/1360-8-0x00000000008E0000-0x0000000000907000-memory.dmp	upx
behavioral2/memory/2360-9-0x0000000000BB0000-0x0000000000BD7000-memory.dmp	upx
behavioral2/memory/2360-10-0x0000000000BB0000-0x0000000000BD7000-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"	f09d0363bac4fde14dfff1e4fbd85350N.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	f09d0363bac4fde14dfff1e4fbd85350N.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	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe
Token: SeDebugPrivilege	2360	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1360 wrote to memory of 2360	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	83
PID 1360 wrote to memory of 2360	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	83
PID 1360 wrote to memory of 2360	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	83
PID 1360 wrote to memory of 3856	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	85
PID 1360 wrote to memory of 3856	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	85
PID 1360 wrote to memory of 3856	1360	f09d0363bac4fde14dfff1e4fbd85350N.exe	85

C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.exe
"C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.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:1360
- 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:2360
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\f09d0363bac4fde14dfff1e4fbd85350N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:3856

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
3889124804cd3ffc3c882650859cfa05

SHA1
33e7b9de704b6a6d482420cbffc0aa35b86f74d9

SHA256
7e24a66a2eca085db581259c6ccfb7448cd898cc36a0f26df6269d03e29b4576

SHA512
12b0d80c8907349073577d4172833d16fe94f5b4925f518ea3291787e351dde269e915379a1288232d3460cb420cbbb54977a4f0628435cce8cd60b7c614d58a

Download Submit
memory/1360-0-0x00000000008E0000-0x0000000000907000-memory.dmp

Filesize
156KB

Download
memory/1360-8-0x00000000008E0000-0x0000000000907000-memory.dmp

Filesize
156KB

Download
memory/2360-4-0x0000000000BB0000-0x0000000000BD7000-memory.dmp

Filesize
156KB

Download
memory/2360-9-0x0000000000BB0000-0x0000000000BD7000-memory.dmp

Filesize
156KB

Download
memory/2360-10-0x0000000000BB0000-0x0000000000BD7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads