bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684

General

Target

bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe
Size

514KB
MD5

a60f1572c9c41bf33ca479a5445121d7
SHA1

38e622782b15050c6ee420e8aaa859c067201ac4
SHA256

bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684
SHA512

b0e176c6463990c63c1f903d4201ef745f52c807a2618a5f9060ac4df76734d90c52f980929e6f48b49e0c22cc87c639bfc577b45a0b09460accdbc60e41ac29
SSDEEP

12288:J8U6sBwlrjT0k+g/QoRePwF0sOuUhaPGx8YXX8r//:J8U6hjTnQoRMwK+IaYXX8rn

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__	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe

Executes dropped EXE 1 IoCs

pid	Process
3892	s8144.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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s8144.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s8144.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s8144.exe
File created	C:\Windows\assembly\Desktop.ini	s8144.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s8144.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4320	776	WerFault.exe	79

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	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
776	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe
776	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe
3892	s8144.exe
3892	s8144.exe
3892	s8144.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3892	s8144.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3892	s8144.exe
3892	s8144.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 776 wrote to memory of 3892	776	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe	81
PID 776 wrote to memory of 3892	776	bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe	81

C:\Users\Admin\AppData\Local\Temp\bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe
"C:\Users\Admin\AppData\Local\Temp\bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe"
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks computer location settings
- Enumerates system info in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:776
- C:\Users\Admin\AppData\Local\Temp\n8144\s8144.exe
  "C:\Users\Admin\AppData\Local\Temp\n8144\s8144.exe" ins.exe /h ce089b.api.socdn.com /e 12637312 /u 528b6372-4588-49a1-a5e1-2d2e0a000013 /v "C:\Users\Admin\AppData\Local\Temp\bcb1d84904ec07a5ee10676e93e1ee2cc6fb7617097390499624c0610e265684.exe"
  2⤵
  - Executes dropped EXE
  - Drops desktop.ini file(s)
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3892
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 776 -s 3772
  2⤵
  - Program crash
  PID:4320

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 776 -ip 776
1⤵
PID:5036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\n8144\s8144.exe

Filesize
340KB

MD5
f5220788421dbad45b2f6531adb04585

SHA1
2f0a68726f46218f0c8811f1476eb275fdc417ac

SHA256
c19bc0934102dc4445933bdf41e70570aa4432b874c24671657e1d113d251f1d

SHA512
30a35e20ec156e512c0cd67fa561057465df3bb64ebd681e26999e306c5c79e15b0dcf2625b69a54b84f9ee5b2e53ff360651d3b5a0104872e6f0528fd5f4043

Download Submit
C:\Users\Admin\AppData\Local\Temp\n8144\s8144.exe

Filesize
340KB

MD5
f5220788421dbad45b2f6531adb04585

SHA1
2f0a68726f46218f0c8811f1476eb275fdc417ac

SHA256
c19bc0934102dc4445933bdf41e70570aa4432b874c24671657e1d113d251f1d

SHA512
30a35e20ec156e512c0cd67fa561057465df3bb64ebd681e26999e306c5c79e15b0dcf2625b69a54b84f9ee5b2e53ff360651d3b5a0104872e6f0528fd5f4043

Download Submit
memory/3892-135-0x00007FF819CE0000-0x00007FF81A716000-memory.dmp

Filesize
10.2MB

Download
memory/3892-136-0x00000000019AA000-0x00000000019AF000-memory.dmp

Filesize
20KB

Download
memory/3892-137-0x00000000019AA000-0x00000000019AF000-memory.dmp

Filesize
20KB

Download
memory/3892-138-0x00000000019AA000-0x00000000019AF000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads