5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59

General

Target

5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe
Size

67KB
MD5

8905f38e4785414451a173d6c5e69365
SHA1

de4bb6bb30fda4b1077134462c1c144a794535c8
SHA256

5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59
SHA512

4f698708a78017d5827c367ac59290b60a9c118c53540b1cde5c248419d0709ca06c385b3a0f7bf0edd3335b64837527479318ce5ffbad1c412c8c6b3e2ea32e
SSDEEP

768:ZrItKyw5WHXfQIhIiIk9ecAaVPD96KyX6+LLL8cccpPPPPTX:Zr3Z5IfQIR81ad5yX6FcccpPPPPb

Score

8^/10

defense_evasion discovery evasion

Malware Config

Signatures

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1564.001

pid	Process
2656	attrib.exe

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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe

Executes dropped EXE 1 IoCs

pid	Process
4588	cwshost.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

Drops file in Windows directory 3 IoCs

description	ioc	Process
File created	C:\Windows\Debug\cwshost.exe	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe
File opened for modification	C:\Windows\Debug\cwshost.exe	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe
File opened for modification	C:\Windows\Debug\cwshost.exe	attrib.exe

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 4 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	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cwshost.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	attrib.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3236 wrote to memory of 2656	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	84
PID 3236 wrote to memory of 2656	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	84
PID 3236 wrote to memory of 2656	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	84
PID 3236 wrote to memory of 2336	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	90
PID 3236 wrote to memory of 2336	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	90
PID 3236 wrote to memory of 2336	3236	5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe	90

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1564.001

pid	Process
2656	attrib.exe

C:\Users\Admin\AppData\Local\Temp\5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe
"C:\Users\Admin\AppData\Local\Temp\5a7c7d3562454650cc891a91d8d5f6b183b4b33e4ef5132a2a62a2bd91bd9e59.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3236
- C:\Windows\SysWOW64\attrib.exe
  attrib +a +s +h +r C:\Windows\Debug\cwshost.exe
  2⤵
  - Sets file to hidden
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Views/modifies file attributes
  PID:2656
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\5A7C7D~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  PID:2336

C:\Windows\Debug\cwshost.exe
C:\Windows\Debug\cwshost.exe
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:4588

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Hide Artifacts

2

T1564

Hidden Files and Directories

2

T1564.001

Indicator Removal

1

T1070

File Deletion

1

T1070.004

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:\Windows\debug\cwshost.exe

Filesize
67KB

MD5
b8da964fcebd66932c42e426f239e2dd

SHA1
df57b259c122d39f9cd0f8b91da9401834a4105a

SHA256
e0cfe8f4df33f9735c7d22dbdd691afcdd485dab7c17f008d4294d693cdfc729

SHA512
f3c39b4fa3590a4ed01fa06f9265ee565142894610cacad3e33417aea5155ea904799a35b2a5bb807a9f1213cac21b3b10e7e841454505c64ce2e9c1667d1dcd

Download Submit
memory/3236-0-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/3236-5-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download
memory/4588-6-0x0000000000400000-0x0000000000411000-memory.dmp

Filesize
68KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads