8c204424ac62ff49d98d90f1e86867e022da5ca6466d58dc079eb93e06948379

General

Target

8fd63622315516d3833bcc44b7ebc090N.exe
Size

59KB
MD5

8fd63622315516d3833bcc44b7ebc090
SHA1

22222b28ad2514507fd74f258a1e94671bad17db
SHA256

8c204424ac62ff49d98d90f1e86867e022da5ca6466d58dc079eb93e06948379
SHA512

69897308f096d8766d588fc86fd5355f2a5fc35e4a675bbb4914cf3b3ebfabc4cf2209b0c798b31cd7a8ab0742168faa91b2843c56d84fc81187d9e51bcc691c
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQJ:OeodiUO4p13b9HiIeoutuh1aQJ

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2976	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2656	AhnSvc.exe

Loads dropped DLL 2 IoCs

pid	Process
2792	8fd63622315516d3833bcc44b7ebc090N.exe
2792	8fd63622315516d3833bcc44b7ebc090N.exe

UPX packed file 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2792-0-0x0000000000CA0000-0x0000000000CC7000-memory.dmp	upx
behavioral1/files/0x000f00000001749c-2.dat	upx
behavioral1/memory/2656-11-0x0000000000DB0000-0x0000000000DD7000-memory.dmp	upx
behavioral1/memory/2792-12-0x0000000000CA0000-0x0000000000CC7000-memory.dmp	upx
behavioral1/memory/2656-14-0x0000000000DB0000-0x0000000000DD7000-memory.dmp	upx
behavioral1/memory/2656-18-0x0000000000DB0000-0x0000000000DD7000-memory.dmp	upx
behavioral1/memory/2792-21-0x0000000000CA0000-0x0000000000CC7000-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"	8fd63622315516d3833bcc44b7ebc090N.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	8fd63622315516d3833bcc44b7ebc090N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	8fd63622315516d3833bcc44b7ebc090N.exe
Token: SeDebugPrivilege	2656	AhnSvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2792 wrote to memory of 2656	2792	8fd63622315516d3833bcc44b7ebc090N.exe	30
PID 2792 wrote to memory of 2656	2792	8fd63622315516d3833bcc44b7ebc090N.exe	30
PID 2792 wrote to memory of 2656	2792	8fd63622315516d3833bcc44b7ebc090N.exe	30
PID 2792 wrote to memory of 2656	2792	8fd63622315516d3833bcc44b7ebc090N.exe	30
PID 2792 wrote to memory of 2976	2792	8fd63622315516d3833bcc44b7ebc090N.exe	31
PID 2792 wrote to memory of 2976	2792	8fd63622315516d3833bcc44b7ebc090N.exe	31
PID 2792 wrote to memory of 2976	2792	8fd63622315516d3833bcc44b7ebc090N.exe	31
PID 2792 wrote to memory of 2976	2792	8fd63622315516d3833bcc44b7ebc090N.exe	31

C:\Users\Admin\AppData\Local\Temp\8fd63622315516d3833bcc44b7ebc090N.exe
"C:\Users\Admin\AppData\Local\Temp\8fd63622315516d3833bcc44b7ebc090N.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:2792
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\8fd63622315516d3833bcc44b7ebc090N.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2976

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

\ProgramData\AhnLab\AhnSvc.exe

Filesize
59KB

MD5
4c0c7a1fb90ec3bc85298be138868283

SHA1
c4c5fd3a0d289b32c397ce88348f9197cdca70dd

SHA256
58a5e239803b2e31366e6e3e60326d5d22a186cba1f41c445d02dd5ea230e792

SHA512
b7531367c78c1e407d2d0fcd655d6068ac8e8181038673b8803ffcb324297f7406961adab12a34fe65e250bedb0c613e3f85a05ab9b25438e285ad309d4a6316

Download Submit
memory/2656-11-0x0000000000DB0000-0x0000000000DD7000-memory.dmp

Filesize
156KB

Download
memory/2656-14-0x0000000000DB0000-0x0000000000DD7000-memory.dmp

Filesize
156KB

Download
memory/2656-18-0x0000000000DB0000-0x0000000000DD7000-memory.dmp

Filesize
156KB

Download
memory/2792-0-0x0000000000CA0000-0x0000000000CC7000-memory.dmp

Filesize
156KB

Download
memory/2792-10-0x00000000000E0000-0x0000000000107000-memory.dmp

Filesize
156KB

Download
memory/2792-9-0x00000000000E0000-0x0000000000107000-memory.dmp

Filesize
156KB

Download
memory/2792-12-0x0000000000CA0000-0x0000000000CC7000-memory.dmp

Filesize
156KB

Download
memory/2792-13-0x00000000000E0000-0x0000000000107000-memory.dmp

Filesize
156KB

Download
memory/2792-21-0x0000000000CA0000-0x0000000000CC7000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads