2b608671bb4dd3371486f11cd82867ab1807022c85b45e9f2d244bb9b6b724dd

General

Target

6fd5a5b276ec833984d10066aa543240N.exe
Size

59KB
MD5

6fd5a5b276ec833984d10066aa543240
SHA1

a0576235c4d44a78e6d5f056e05fa2c0c6d9ce5d
SHA256

2b608671bb4dd3371486f11cd82867ab1807022c85b45e9f2d244bb9b6b724dd
SHA512

5e498641275153cf7afb34ff8671c12107a311785e5a74d71f65d1444b9732bc4f9c8d34d8698e7aec452355bd607099eae4de15230ee4f85c9da05e308b87f2
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQQ:OeodiUO4p13b9HiIeoutuh1aQQ

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2896	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2496	AhnSvc.exe

Loads dropped DLL 2 IoCs

pid	Process
2320	6fd5a5b276ec833984d10066aa543240N.exe
2320	6fd5a5b276ec833984d10066aa543240N.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2320-0-0x0000000000F00000-0x0000000000F27000-memory.dmp	upx
behavioral1/files/0x0006000000019256-7.dat	upx
behavioral1/memory/2496-11-0x0000000000230000-0x0000000000257000-memory.dmp	upx
behavioral1/memory/2320-12-0x0000000000F00000-0x0000000000F27000-memory.dmp	upx
behavioral1/memory/2496-13-0x0000000000230000-0x0000000000257000-memory.dmp	upx
behavioral1/memory/2320-21-0x0000000000F00000-0x0000000000F27000-memory.dmp	upx
behavioral1/memory/2496-22-0x0000000000230000-0x0000000000257000-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"	6fd5a5b276ec833984d10066aa543240N.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 2 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	6fd5a5b276ec833984d10066aa543240N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	6fd5a5b276ec833984d10066aa543240N.exe
Token: SeDebugPrivilege	2496	AhnSvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2496	2320	6fd5a5b276ec833984d10066aa543240N.exe	29
PID 2320 wrote to memory of 2496	2320	6fd5a5b276ec833984d10066aa543240N.exe	29
PID 2320 wrote to memory of 2496	2320	6fd5a5b276ec833984d10066aa543240N.exe	29
PID 2320 wrote to memory of 2496	2320	6fd5a5b276ec833984d10066aa543240N.exe	29
PID 2320 wrote to memory of 2896	2320	6fd5a5b276ec833984d10066aa543240N.exe	30
PID 2320 wrote to memory of 2896	2320	6fd5a5b276ec833984d10066aa543240N.exe	30
PID 2320 wrote to memory of 2896	2320	6fd5a5b276ec833984d10066aa543240N.exe	30
PID 2320 wrote to memory of 2896	2320	6fd5a5b276ec833984d10066aa543240N.exe	30

C:\Users\Admin\AppData\Local\Temp\6fd5a5b276ec833984d10066aa543240N.exe
"C:\Users\Admin\AppData\Local\Temp\6fd5a5b276ec833984d10066aa543240N.exe"
1⤵
- Loads dropped DLL
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2320
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2496
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\6fd5a5b276ec833984d10066aa543240N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2896

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

System Information Discovery

1

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
660fbc3e8b15e83d66ec933b98e85454

SHA1
bdcb69b6dba45181eaf4370d03f63581a2039efb

SHA256
dd493012e84af6a295f1fca43be472b1118f3fce60d5997f5859d8a01cd15e71

SHA512
ef0291e0d400dc35ced718982461733946d17a8ce1c0dc540846d43284a52343f5b86a8ed165f75491214bba9b590888e3020ced2e729be703a90b82f5ee8df9

Download Submit
memory/2320-0-0x0000000000F00000-0x0000000000F27000-memory.dmp

Filesize
156KB

Download
memory/2320-10-0x0000000000130000-0x0000000000157000-memory.dmp

Filesize
156KB

Download
memory/2320-9-0x0000000000130000-0x0000000000157000-memory.dmp

Filesize
156KB

Download
memory/2320-12-0x0000000000F00000-0x0000000000F27000-memory.dmp

Filesize
156KB

Download
memory/2320-16-0x0000000000130000-0x0000000000157000-memory.dmp

Filesize
156KB

Download
memory/2320-17-0x0000000000130000-0x0000000000157000-memory.dmp

Filesize
156KB

Download
memory/2320-21-0x0000000000F00000-0x0000000000F27000-memory.dmp

Filesize
156KB

Download
memory/2496-11-0x0000000000230000-0x0000000000257000-memory.dmp

Filesize
156KB

Download
memory/2496-13-0x0000000000230000-0x0000000000257000-memory.dmp

Filesize
156KB

Download
memory/2496-22-0x0000000000230000-0x0000000000257000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads