9d2cbc7c4473f5214a329809a4c6f088316c283f227e9598233b49e11e8a3892

General

Target
9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe
Size 406KB
Sample220520-vhdb5aafb9
SHA256 9d2cbc7c4473f5214a329809a4c6f088316c283f227e9598233b49e11e8a3892
MD5 53e88f1ad51339c5f3e501f688f094db
SHA1 636ecde3a0ad58dd4e2c96b2f34868b46b7c0f48
SHA512 9831d6a917240d5567204de37837489a1d78420290b81c962a86032d5ceea8785e884a52aaf737cd1c8cf75507219c6b3a417fb111a4acc826f2571a91212a5e
MD5 SHA1 SHA512

Score

10^/10

persistence suricata

Malware Config

Signatures

suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata: ET MALWARE Generic njRAT/Bladabindi CnC Activity (ll)
suricata

Executes dropped EXE 2 IoCs

pid	Process
4540	Updates.exe
1452	Updates.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-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Temp.exe	Updates.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Temp.exe	Updates.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Update = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Templates\\Updates.exe -boot"	Updates.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4540 set thread context of 1452	4540	Updates.exe	89

Drops file in Windows directory 4 IoCs

description	ioc	Process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	Updates.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch.new	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch.new	Updates.exe

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

System Information Discovery
T1082

Suspicious use of AdjustPrivilegeToken 25 IoCs

description	pid	Process
Token: SeDebugPrivilege	2812	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe
Token: SeDebugPrivilege	4540	Updates.exe
Token: SeDebugPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe
Token: 33	1452	Updates.exe
Token: SeIncBasePriorityPrivilege	1452	Updates.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2812 wrote to memory of 3064	2812	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe	83
PID 2812 wrote to memory of 3064	2812	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe	83
PID 2812 wrote to memory of 3064	2812	9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe	83
PID 4600 wrote to memory of 4540	4600	explorer.exe	85
PID 4600 wrote to memory of 4540	4600	explorer.exe	85
PID 4600 wrote to memory of 4540	4600	explorer.exe	85
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89
PID 4540 wrote to memory of 1452	4540	Updates.exe	89

C:\Users\Admin\AppData\Local\Temp\9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe
"C:\Users\Admin\AppData\Local\Temp\9D2CBC7C4473F5214A329809A4C6F088316C283F227E9.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2812
- C:\Windows\SysWOW64\explorer.exe
  "C:\Windows\System32\explorer.exe" /c select, C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
  2⤵
  PID:3064

C:\Windows\explorer.exe
C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
1⤵
- Suspicious use of WriteProcessMemory
PID:4600
- C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
  "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious use of SetThreadContext
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4540
- - C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
    "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe"
    3⤵
    - Executes dropped EXE
    - Drops startup file
    - Suspicious use of AdjustPrivilegeToken
    PID:1452

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Updates.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
Size 406KB
SHA256 9d2cbc7c4473f5214a329809a4c6f088316c283f227e9598233b49e11e8a3892
MD5 53e88f1ad51339c5f3e501f688f094db
SHA1 636ecde3a0ad58dd4e2c96b2f34868b46b7c0f48
SHA512 9831d6a917240d5567204de37837489a1d78420290b81c962a86032d5ceea8785e884a52aaf737cd1c8cf75507219c6b3a417fb111a4acc826f2571a91212a5e
SSDEEP 3072:tLmG8ZqqDcaK7Ony7GVqiMXKvp6yGwWzF8VFNizstsUF1GZlsCA6/kYuies+KxK9:4G84vaz9KCPOqjig3F1dkxT
MD5 SHA1 SHA512 SSDEEP

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Updates.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
Size 406KB
SHA256 9d2cbc7c4473f5214a329809a4c6f088316c283f227e9598233b49e11e8a3892
MD5 53e88f1ad51339c5f3e501f688f094db
SHA1 636ecde3a0ad58dd4e2c96b2f34868b46b7c0f48
SHA512 9831d6a917240d5567204de37837489a1d78420290b81c962a86032d5ceea8785e884a52aaf737cd1c8cf75507219c6b3a417fb111a4acc826f2571a91212a5e
SSDEEP 3072:tLmG8ZqqDcaK7Ony7GVqiMXKvp6yGwWzF8VFNizstsUF1GZlsCA6/kYuies+KxK9:4G84vaz9KCPOqjig3F1dkxT
MD5 SHA1 SHA512 SSDEEP

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Updates.exe

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Templates\Updates.exe
Size 406KB
SHA256 9d2cbc7c4473f5214a329809a4c6f088316c283f227e9598233b49e11e8a3892
MD5 53e88f1ad51339c5f3e501f688f094db
SHA1 636ecde3a0ad58dd4e2c96b2f34868b46b7c0f48
SHA512 9831d6a917240d5567204de37837489a1d78420290b81c962a86032d5ceea8785e884a52aaf737cd1c8cf75507219c6b3a417fb111a4acc826f2571a91212a5e
SSDEEP 3072:tLmG8ZqqDcaK7Ony7GVqiMXKvp6yGwWzF8VFNizstsUF1GZlsCA6/kYuies+KxK9:4G84vaz9KCPOqjig3F1dkxT
MD5 SHA1 SHA512 SSDEEP

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enterprisesec.config.cch

Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\enterprisesec.config.cch
Size 476B
SHA256 1e7a22228fe1a34786e998a939960a5721f298fb994a3038d1bd7c6c3e4c2b35
MD5 d6deee1f76060feb3237dd653c577db3
SHA1 d405e7129c7de67ed994e0ac42c3b368811e9c6c
SHA512 209adb7a91b303e40f22c1a04c2703ddf7db4ee8f08d08b490b1a4a3b0502820256af91d8087b8e5afb3c3891d7dfdeddb5d74246b4eb867f0b9be786db5e91b
MD5 SHA1 SHA512

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security.config.cch

Path C:\Windows\Microsoft.NET\Framework\v2.0.50727\config\security.config.cch
Size 476B
SHA256 1e7a22228fe1a34786e998a939960a5721f298fb994a3038d1bd7c6c3e4c2b35
MD5 d6deee1f76060feb3237dd653c577db3
SHA1 d405e7129c7de67ed994e0ac42c3b368811e9c6c
SHA512 209adb7a91b303e40f22c1a04c2703ddf7db4ee8f08d08b490b1a4a3b0502820256af91d8087b8e5afb3c3891d7dfdeddb5d74246b4eb867f0b9be786db5e91b
MD5 SHA1 SHA512

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memory/1452-141-0x0000000073D60000-0x0000000074311000-memory.dmp

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memory/2812-130-0x0000000074A00000-0x0000000074FB1000-memory.dmp

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memory/4540-137-0x0000000073D60000-0x0000000074311000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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