54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1

General

Target

54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe
Size

59KB
MD5

8f6c66d616c2c9ede5859e22570c9660
SHA1

9ed57f2d04f6a710eab995dd736c3559d806c110
SHA256

54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1
SHA512

ac9f3a05a98f137ee39f393460bc99b9247648b67be694a3c52b4b51f149708c2b1a19c71d84602cb98ed97c7c360b631543106660beb1f68b698c8446e770ec
SSDEEP

1536:3+ZgwRdiE8cO4p1xRjfTvSq5r3ZiIZ4nouy8uh1aQd:OeodiUO4p13b9HiIeoutuh1aQd

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-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe

Executes dropped EXE 1 IoCs

pid	Process
2308	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"	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.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/4148-0-0x0000000000640000-0x0000000000667000-memory.dmp	upx
behavioral2/files/0x0008000000023cca-3.dat	upx
behavioral2/memory/2308-4-0x0000000000F20000-0x0000000000F47000-memory.dmp	upx
behavioral2/memory/4148-9-0x0000000000640000-0x0000000000667000-memory.dmp	upx
behavioral2/memory/2308-10-0x0000000000F20000-0x0000000000F47000-memory.dmp	upx
behavioral2/memory/2308-11-0x0000000000F20000-0x0000000000F47000-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	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	AhnSvc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe
Token: SeDebugPrivilege	2308	AhnSvc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4148 wrote to memory of 2308	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	85
PID 4148 wrote to memory of 2308	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	85
PID 4148 wrote to memory of 2308	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	85
PID 4148 wrote to memory of 1468	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	87
PID 4148 wrote to memory of 1468	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	87
PID 4148 wrote to memory of 1468	4148	54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe	87

C:\Users\Admin\AppData\Local\Temp\54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe
"C:\Users\Admin\AppData\Local\Temp\54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.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:4148
- 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:2308
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del /q "C:\Users\Admin\AppData\Local\Temp\54150ca6bb7ee52588397977fe67ca695a4c80a7494ba40e7c4cadfb4a2996e1N.exe" >> NUL
  2⤵
  - System Location Discovery: System Language Discovery
  PID:1468

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

C:\ProgramData\AhnLab\AhnSvc.exe

Filesize
59KB

MD5
a01461d08588b35d356193a965afc793

SHA1
4722b4eaaeb75d734abdaef265bbef54fc5eefd9

SHA256
c00970177471f92b399a09bcbf5d4110c7fdc8d8e0326cb06b175bac7539d83e

SHA512
c181316b7bd3d9cb42d1301ba151782c83906b020ba99c57f7b8517512ce3cf1cb109066733e3e6adf700737fd9b6ea783465825fa0e9b99405ffd62248f43ba

Download Submit
memory/2308-4-0x0000000000F20000-0x0000000000F47000-memory.dmp

Filesize
156KB

Download
memory/2308-10-0x0000000000F20000-0x0000000000F47000-memory.dmp

Filesize
156KB

Download
memory/2308-11-0x0000000000F20000-0x0000000000F47000-memory.dmp

Filesize
156KB

Download
memory/4148-0-0x0000000000640000-0x0000000000667000-memory.dmp

Filesize
156KB

Download
memory/4148-9-0x0000000000640000-0x0000000000667000-memory.dmp

Filesize
156KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads