676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cf

General

Target

676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe
Size

59KB
MD5

4f731be23e2346c18df5eade7be800d0
SHA1

cbe00165931ef96ca8ceb26839a0b72db4e93c15
SHA256

676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cf
SHA512

3e91e8acb63a10a7cb877c27a0243a77767728291786d373fd35e4cfaa834098e26f03886eddef23639257d44e6a412a34951852960c9c96487976ddad6803ef
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQ3:OeodiUO4p13b9HiIeoutuh1aQ3

Score

7^/10

defense_evasion discovery persistence upx

Malware Config

Signatures

Deletes itself 1 IoCs

pid	Process
2528	cmd.exe

Executes dropped EXE 1 IoCs

pid	Process
2640	AhnSvc.exe

Loads dropped DLL 2 IoCs

pid	Process
2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe
2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.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"	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.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 7 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2624-0-0x0000000000D00000-0x0000000000D27000-memory.dmp	upx
behavioral1/files/0x00080000000164b1-8.dat	upx
behavioral1/memory/2640-11-0x00000000000F0000-0x0000000000117000-memory.dmp	upx
behavioral1/memory/2624-15-0x0000000000D00000-0x0000000000D27000-memory.dmp	upx
behavioral1/memory/2640-18-0x00000000000F0000-0x0000000000117000-memory.dmp	upx
behavioral1/memory/2640-22-0x00000000000F0000-0x0000000000117000-memory.dmp	upx
behavioral1/memory/2624-25-0x0000000000D00000-0x0000000000D27000-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 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	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe
Token: SeDebugPrivilege	2640	AhnSvc.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2624 wrote to memory of 2640	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	30
PID 2624 wrote to memory of 2640	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	30
PID 2624 wrote to memory of 2640	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	30
PID 2624 wrote to memory of 2640	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	30
PID 2624 wrote to memory of 2528	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	31
PID 2624 wrote to memory of 2528	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	31
PID 2624 wrote to memory of 2528	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	31
PID 2624 wrote to memory of 2528	2624	676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe	31

C:\Users\Admin\AppData\Local\Temp\676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe
"C:\Users\Admin\AppData\Local\Temp\676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.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:2624
- C:\ProgramData\AhnLab\AhnSvc.exe
  "C:\ProgramData\AhnLab\AhnSvc.exe" /run
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2640
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\676fa01a73ae1ecbfbf764ff472bf33eda440216fc8b1f60ef0d723b2e77e9cfN.exe" >> NUL
  2⤵
  - Deletes itself
  - System Location Discovery: System Language Discovery
  PID:2528

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
acec4a9abcdffca085c0f45470bdacd2

SHA1
7491363f5b258b738c328dcc32e046f1643188eb

SHA256
dbce3a4b9986c2c27475a3165e190a399d8279b288330f176d1d1a31c3d6dcfc

SHA512
32267cf66346f2106e675c29c9272472ca83026def32f20075eb7e98667b084a8faf59c8d4ba652d6578b748e81dc2eb0edf55c648346f5926d5fbe92e099cc9

Download Submit
memory/2624-0-0x0000000000D00000-0x0000000000D27000-memory.dmp

Filesize
156KB

Download
memory/2624-10-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2624-9-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2624-15-0x0000000000D00000-0x0000000000D27000-memory.dmp

Filesize
156KB

Download
memory/2624-16-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2624-17-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2624-25-0x0000000000D00000-0x0000000000D27000-memory.dmp

Filesize
156KB

Download
memory/2640-11-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2640-18-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download
memory/2640-22-0x00000000000F0000-0x0000000000117000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads