af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584

General

Target

af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe
Size

524KB
MD5

29c52ee10a2352220382e8796f00ef29
SHA1

71e231a59e4a43e079460d17a91a7f4f21db6a63
SHA256

af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584
SHA512

00d907a2c8568d95f5850198684bd52dbdff3d61d24c6f8ed73077f9a961e0e0c9fa1f8a36b9d027b13b1a64b7eff1ac376ce7b2db9735767d8f464578b14244
SSDEEP

12288:AJuKBAjsT2ws4GrRu2QRqxqlOy8AF05yHk67zR960LF:AJuXsTuRRu2wqNGIyHr96i

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__	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe

Executes dropped EXE 1 IoCs

pid	Process
3076	s3964.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	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe

Drops desktop.ini file(s) 2 IoCs

description	ioc	Process
File created	C:\Windows\assembly\Desktop.ini	s3964.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s3964.exe

Drops file in Windows directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Windows\assembly	s3964.exe
File created	C:\Windows\assembly\Desktop.ini	s3964.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	s3964.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
1572	2620	WerFault.exe	79

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2620	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe
2620	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe
3076	s3964.exe
3076	s3964.exe
3076	s3964.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3076	s3964.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
3076	s3964.exe
3076	s3964.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 2620 wrote to memory of 3076	2620	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe	80
PID 2620 wrote to memory of 3076	2620	af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe	80

C:\Users\Admin\AppData\Local\Temp\af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.exe
"C:\Users\Admin\AppData\Local\Temp\af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.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:2620
- C:\Users\Admin\AppData\Local\Temp\n3964\s3964.exe
  "C:\Users\Admin\AppData\Local\Temp\n3964\s3964.exe" ins.exe /e 12912908 /h 13a9a3.api.socdn.com /t 54275510561ca34d048b4569 /u 76873fd7-d775-11e3-8a58-80c16e6f498c /v "C:\Users\Admin\AppData\Local\Temp\af1cddc0e7d4454bab37fa909080d92d4c97259f4a137416a8638d5cfc993584.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:3076
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2620 -s 3856
  2⤵
  - Program crash
  PID:1572

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 448 -p 2620 -ip 2620
1⤵
PID:1256

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\n3964\s3964.exe

Filesize
339KB

MD5
7bfe6bbe12a10323b0aa5c1bad6ecd5b

SHA1
7ce4508ddfa0200a95cdbfbe66c4c6b5a8b87122

SHA256
f15a491ef671ebddcc3710a4817244c18fe1a5dd444c83137c2fbd601d1c7214

SHA512
bf0438520ade14a53c7d8a76b7f7e3d8eec9060003954e0da1ee17ed5db024c44a28bae23ebfaa006fd50da400faf9fc77a4dcb1071d0501d753b47a6146d5d7

Download Submit
C:\Users\Admin\AppData\Local\Temp\n3964\s3964.exe

Filesize
339KB

MD5
7bfe6bbe12a10323b0aa5c1bad6ecd5b

SHA1
7ce4508ddfa0200a95cdbfbe66c4c6b5a8b87122

SHA256
f15a491ef671ebddcc3710a4817244c18fe1a5dd444c83137c2fbd601d1c7214

SHA512
bf0438520ade14a53c7d8a76b7f7e3d8eec9060003954e0da1ee17ed5db024c44a28bae23ebfaa006fd50da400faf9fc77a4dcb1071d0501d753b47a6146d5d7

Download Submit
memory/3076-135-0x00007FFE4D610000-0x00007FFE4E046000-memory.dmp

Filesize
10.2MB

Download
memory/3076-136-0x0000000001A0A000-0x0000000001A0F000-memory.dmp

Filesize
20KB

Download
memory/3076-137-0x0000000001A0A000-0x0000000001A0F000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads