e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1

General

Target
e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe
Size 59KB
Sample241102-t4ld7aypfv
SHA256 e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1
MD5 8bdb44e6555fae515db07a830d8a8896
SHA1 245d167b11be89262dcf459fea1bc41325b3e185
SHA512 81c6d1d7a2b3795ce84299780518ef0b718b2ef34bf0cc55c0a93b49b809abe2e59c3941d653d79606898b86965624b914e094b6099eae0df43ba42d27175f00
SSDEEP 1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQf:OeodiUO4p13b9HiIeoutuh1aQf
MD5 SHA1 SHA512 SSDEEP

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-1-5-21-4050598569-1597076380-177084960-1000\Control Panel\International\Geo\Nation	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe

Executes dropped EXE 1 IoCs

pid	Process
1080	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"	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.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/2080-0-0x00000000003B0000-0x00000000003D7000-memory.dmp	upx
behavioral2/files/0x000a000000023b93-3.dat	upx
behavioral2/memory/1080-4-0x0000000000390000-0x00000000003B7000-memory.dmp	upx
behavioral2/memory/2080-8-0x00000000003B0000-0x00000000003D7000-memory.dmp	upx
behavioral2/memory/1080-9-0x0000000000390000-0x00000000003B7000-memory.dmp	upx
behavioral2/memory/1080-10-0x0000000000390000-0x00000000003B7000-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	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AhnSvc.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe
Token: SeDebugPrivilege	1080	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 1080	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	84
PID 2080 wrote to memory of 1080	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	84
PID 2080 wrote to memory of 1080	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	84
PID 2080 wrote to memory of 2564	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	85
PID 2080 wrote to memory of 2564	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	85
PID 2080 wrote to memory of 2564	2080	e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe	85

C:\Users\Admin\AppData\Local\Temp\e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe
"C:\Users\Admin\AppData\Local\Temp\e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.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:2080
- 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:1080
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\e5658160f5e9ebad96d3bd80ab80f9c26b877719a4b57676578875965f8ad5c1.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2564

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

AhnSvc.exe

Path C:\ProgramData\AhnLab\AhnSvc.exe
Size 59KB
SHA256 923fb7a41dccedd439170bcce37ac63c0daada10be8edc21974ce84bc4844e8c
MD5 78a4ec2288d29d18674e41e375f58a1c
SHA1 a88a4a3b48169cddcec2fe3726f6e7c01c1e23c3
SHA512 489675d61a792bf3288e77f60a8bf50956308ba0889ce35216aaaf8e7613f59c81649f68f753d360609ba3987f1494c6506f474f98adc5a15d8bbe6be9cb304e
SSDEEP 1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQs:OeodiUO4p13b9HiIeoutuh1aQs
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/1080-4-0x0000000000390000-0x00000000003B7000-memory.dmp

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memory/1080-9-0x0000000000390000-0x00000000003B7000-memory.dmp

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memory/1080-10-0x0000000000390000-0x00000000003B7000-memory.dmp

Download

memory/2080-0-0x00000000003B0000-0x00000000003D7000-memory.dmp

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memory/2080-8-0x00000000003B0000-0x00000000003D7000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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