f80fc170ee61cfc473a016a640acfde40b8ba8ed6935060d538674098f2959cb

Analysis

max time kernel
143s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 21:45

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General

Target

3e31cbce05fa70e79583ea94ae6d73ca.dll
Size

722KB
MD5

3e31cbce05fa70e79583ea94ae6d73ca
SHA1

b521b7ccffd70f46e49ea4d5bc3cf0e432d64d2d
SHA256

f80fc170ee61cfc473a016a640acfde40b8ba8ed6935060d538674098f2959cb
SHA512

d2bc5c5217e2c39f9a7fdab6be760239b37c545e845aae421d7f74ae7cc2e72dff1c9056e727701fb3c9fedd19e3b9dbaa35fb3884d3a9b14c6c7e73120bf950
SSDEEP

12288:YGkKmIHLYCaWpXzU4fE1d1xs0Yfv0zAWFuhlCXRbmqky4mbdJ2I3ZvY59OhOuB41:HmcNaWpY9AWoyXFmqk3mb7JvY59O0uB4

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__	regsvr32.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\Software\Wine	regsvr32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1120	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1120	regsvr32.exe
1120	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2776 wrote to memory of 1120	2776	regsvr32.exe	15
PID 2776 wrote to memory of 1120	2776	regsvr32.exe	15
PID 2776 wrote to memory of 1120	2776	regsvr32.exe	15

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\3e31cbce05fa70e79583ea94ae6d73ca.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2776
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\3e31cbce05fa70e79583ea94ae6d73ca.dll
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1120

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1120-0-0x0000000000400000-0x0000000000583000-memory.dmp

Filesize
1.5MB

Download
memory/1120-2-0x00000000771E4000-0x00000000771E6000-memory.dmp

Filesize
8KB

Download
memory/1120-5-0x0000000004000000-0x0000000004001000-memory.dmp

Filesize
4KB

Download
memory/1120-4-0x0000000004010000-0x0000000004011000-memory.dmp

Filesize
4KB

Download
memory/1120-3-0x0000000004040000-0x0000000004042000-memory.dmp

Filesize
8KB

Download
memory/1120-1-0x0000000001370000-0x000000000140D000-memory.dmp

Filesize
628KB

Download
memory/1120-6-0x0000000004000000-0x0000000004001000-memory.dmp

Filesize
4KB

Download