5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82

Analysis

max time kernel
155s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
27-11-2022 15:59

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General

Target

5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe
Size

41KB
MD5

8b775cdede0afdcdb38b7fa8944f1bcf
SHA1

07fce81e1753125a35eb28e2e23ab86007bc2d56
SHA256

5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82
SHA512

80486c7123a32583d6e98ceb631cd6b60fd0026240bdfe3eeb16ab4975042223895f0851ae511c28e136a8b9f0c93d69bab91a8ad6b47ff0aadeb7ab1c5d8e4c
SSDEEP

768:jaCRaTiwA4PTZ6Elh4ThtwM5gLJFSaTdf5v+OjoY:jUGiZ6csgLJkIdRBoY

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Modify Existing Service

T1031

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\C:\Users\Admin\AppData\Roaming\svchost.exe = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe:*:Enabled:666httyh"	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	svchost.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	svchost.exe

Executes dropped EXE 1 IoCs

pid	Process
3136	svchost.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-1-5-21-2629973501-4017243118-3254762364-1000\Control Panel\International\Geo\Nation	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows\CurrentVersion\Run	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\gggrtrt = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2548 wrote to memory of 3136	2548	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe	76
PID 2548 wrote to memory of 3136	2548	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe	76
PID 2548 wrote to memory of 3136	2548	5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe	76

C:\Users\Admin\AppData\Local\Temp\5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe
"C:\Users\Admin\AppData\Local\Temp\5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Modifies WinLogon
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2548
- C:\Users\Admin\AppData\Roaming\svchost.exe
  "C:\Users\Admin\AppData\Roaming\svchost.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  PID:3136

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

T1031

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
41KB

MD5
8b775cdede0afdcdb38b7fa8944f1bcf

SHA1
07fce81e1753125a35eb28e2e23ab86007bc2d56

SHA256
5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82

SHA512
80486c7123a32583d6e98ceb631cd6b60fd0026240bdfe3eeb16ab4975042223895f0851ae511c28e136a8b9f0c93d69bab91a8ad6b47ff0aadeb7ab1c5d8e4c

Download Submit
C:\Users\Admin\AppData\Roaming\svchost.exe

Filesize
41KB

MD5
8b775cdede0afdcdb38b7fa8944f1bcf

SHA1
07fce81e1753125a35eb28e2e23ab86007bc2d56

SHA256
5b84c874293746885f0695687e37165a0556e8ad40dc5b335ce5710645a57a82

SHA512
80486c7123a32583d6e98ceb631cd6b60fd0026240bdfe3eeb16ab4975042223895f0851ae511c28e136a8b9f0c93d69bab91a8ad6b47ff0aadeb7ab1c5d8e4c

Download Submit
memory/3136-133-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads