5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839

General

Target

5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
Size

512KB
MD5

1984f2362f2b89e158d7b90e672d1ce9
SHA1

78828d430be34b351f8de49d6c5364871d553d3b
SHA256

5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839
SHA512

33309a5de65a7cdddc4cf6ba51f6db7046bb0bec8b961d739f265dbbffe2878e9f0b1d7f9a0abf69dccfdd70f73fd57771fb9eae106f2b9a4b442bd4b04c05cc
SSDEEP

12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4j:0+h9OY70z+warul3E4j

Score

9^/10

evasion

Malware Config

Signatures

Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\ACPI\DSDT\VBOX__	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe

Executes dropped EXE 1 IoCs

pid	Process
1168	s8481.exe

Loads dropped DLL 4 IoCs

pid	Process
1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe

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

System Information Discovery
T1082

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe

Modifies system certificate store 2 TTPs 4 IoCs

evasion spyware trojan

Install Root Certificate

T1130

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81	s8481.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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	s8481.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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	s8481.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\91C6D6EE3E8AC86384E548C299295C756C817B81\Blob = 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	s8481.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
1168	s8481.exe
1168	s8481.exe
1168	s8481.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1168	s8481.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1168	s8481.exe
1168	s8481.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1676 wrote to memory of 1168	1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe	28
PID 1676 wrote to memory of 1168	1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe	28
PID 1676 wrote to memory of 1168	1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe	28
PID 1676 wrote to memory of 1168	1676	5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe	28

C:\Users\Admin\AppData\Local\Temp\5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe
"C:\Users\Admin\AppData\Local\Temp\5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Loads dropped DLL
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1676
- C:\Users\Admin\AppData\Local\Temp\n8481\s8481.exe
  "C:\Users\Admin\AppData\Local\Temp\n8481\s8481.exe" c115870757a76f63d9c55794H/kF1Ttu5QRa24ShFo3l6NZ5QB2PRT0F78vDYoIM5xw75CajMRD3x06GebUQd3OqIQXTZxJd7GN96G0Eukjf+UpGPkVBgFGNGOQA10Dax9O+oR0BkxnfcEUwV4YxreIBz+Nwz1JYDgPoR5MAaVsjPbo= /v "C:\Users\Admin\AppData\Local\Temp\5b91c6b5509148105fec6ef41682903b0d207f4b49a4be05de792015d8f5b839.exe"
  2⤵
  - Executes dropped EXE
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1168

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Install Root Certificate

Modify Registry

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
C:\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
\Users\Admin\AppData\Local\Temp\n8481\s8481.exe

Filesize
230KB

MD5
abaf13cb23de482dc944ab5b51ca3aac

SHA1
76837356db96dd56b647aba60f1adbbdc7b200fe

SHA256
b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

SHA512
cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

Download Submit
memory/1168-62-0x000007FEF3340000-0x000007FEF3D63000-memory.dmp

Filesize
10.1MB

Download
memory/1168-63-0x000007FEF1740000-0x000007FEF27D6000-memory.dmp

Filesize
16.6MB

Download
memory/1168-64-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download
memory/1168-65-0x00000000021A6000-0x00000000021C5000-memory.dmp

Filesize
124KB

Download
memory/1168-66-0x000007FEED7E0000-0x000007FEEE66F000-memory.dmp

Filesize
14.6MB

Download
memory/1168-67-0x000007FEF2850000-0x000007FEF2B3A000-memory.dmp

Filesize
2.9MB

Download
memory/1168-68-0x00000000021A6000-0x00000000021C5000-memory.dmp

Filesize
124KB

Download
memory/1676-54-0x0000000075C81000-0x0000000075C83000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads