b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647

General

Target

b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe
Size

59KB
MD5

d531be5e4a8a1cd827a401bf52b07ab8
SHA1

d6d6f10ce2d6eea3e42b7b025a942608dcf9accc
SHA256

b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647
SHA512

2779bc131b9cfe9283cbf01d4bd8393e2c95c3f20335b60cc90bbc1899e6b43178da570c26d9cd28ea0ee83dccc0b69d25a7dc445ff9460ee8aac021a9bb4a72
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQk:OeodiUO4p13b9HiIeoutuh1aQk

Score

9^/10

Malware Config

Signatures

UPX dump on OEP (original entry point) 7 IoCs

resource	yara_rule
behavioral1/memory/1848-0-0x0000000000310000-0x0000000000337000-memory.dmp	UPX
behavioral1/files/0x0034000000016cab-2.dat	UPX
behavioral1/memory/2544-11-0x0000000000C20000-0x0000000000C47000-memory.dmp	UPX
behavioral1/memory/1848-15-0x0000000000310000-0x0000000000337000-memory.dmp	UPX
behavioral1/memory/2544-16-0x0000000000C20000-0x0000000000C47000-memory.dmp	UPX
behavioral1/memory/1848-24-0x0000000000310000-0x0000000000337000-memory.dmp	UPX
behavioral1/memory/2544-25-0x0000000000C20000-0x0000000000C47000-memory.dmp	UPX

Deletes itself 1 IoCs

pid	Process
2384	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2544	AhnSvc.exe

Loads dropped DLL 2 IoCs

pid	Process
1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe
1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/1848-0-0x0000000000310000-0x0000000000337000-memory.dmp	upx
behavioral1/files/0x0034000000016cab-2.dat	upx
behavioral1/memory/2544-11-0x0000000000C20000-0x0000000000C47000-memory.dmp	upx
behavioral1/memory/1848-15-0x0000000000310000-0x0000000000337000-memory.dmp	upx
behavioral1/memory/2544-16-0x0000000000C20000-0x0000000000C47000-memory.dmp	upx
behavioral1/memory/1848-24-0x0000000000310000-0x0000000000337000-memory.dmp	upx
behavioral1/memory/2544-25-0x0000000000C20000-0x0000000000C47000-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"	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe
Token: SeDebugPrivilege	2544	AhnSvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 2544	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	28
PID 1848 wrote to memory of 2544	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	28
PID 1848 wrote to memory of 2544	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	28
PID 1848 wrote to memory of 2544	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	28
PID 1848 wrote to memory of 2384	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	29
PID 1848 wrote to memory of 2384	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	29
PID 1848 wrote to memory of 2384	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	29
PID 1848 wrote to memory of 2384	1848	b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe	29

C:\Users\Admin\AppData\Local\Temp\b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe
"C:\Users\Admin\AppData\Local\Temp\b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1848
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2544
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\b485e991eb513b8880bcf626f02223dfed897cef9045b01eac50c2fd84915647.exe" >> NUL
  2⤵
  - Deletes itself
  PID:2384

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

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\ProgramData\AhnLab\AhnSvc.exe

Filesize
59KB

MD5
616f9f9a60667e4e683cb4e16c391359

SHA1
53f34ee69e5191263d316542d4e2cf2b57ce8b62

SHA256
97c087b34f0278b009dbfbc848658cf703e6fadb9fda8f5adfd7fbe645d9474f

SHA512
7ebb844a5aa36c4c50a8615e2ac5871e498b0767b4befd0f5957ba777008457bb716e2e0a6bddf93a7fbf6c77b57c4edf5aca42e7b1b5b88bc329cf01e590c36

Download Submit
memory/1848-0-0x0000000000310000-0x0000000000337000-memory.dmp

Filesize
156KB

Download
memory/1848-10-0x0000000000250000-0x0000000000277000-memory.dmp

Filesize
156KB

Download
memory/1848-9-0x0000000000250000-0x0000000000277000-memory.dmp

Filesize
156KB

Download
memory/1848-15-0x0000000000310000-0x0000000000337000-memory.dmp

Filesize
156KB

Download
memory/1848-19-0x0000000000250000-0x0000000000277000-memory.dmp

Filesize
156KB

Download
memory/1848-20-0x0000000000250000-0x0000000000277000-memory.dmp

Filesize
156KB

Download
memory/1848-24-0x0000000000310000-0x0000000000337000-memory.dmp

Filesize
156KB

Download
memory/2544-11-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/2544-16-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download
memory/2544-25-0x0000000000C20000-0x0000000000C47000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads