b4ab0f92c1cdb467449a4f16e1e90d4228bd790aedfc760f095b0e88313bd741

Analysis

max time kernel
112s
max time network
140s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
11-10-2022 23:43

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General

Target

b4ab0f92c1cdb467449a4f16e1e90d4228bd790aedfc760f095b0e88313bd741.dll
Size

783KB
MD5

645282fe5979a6a7a4beb4cdacd3ff20
SHA1

cea2c3daf0409842857c77f32a5048384647ea29
SHA256

b4ab0f92c1cdb467449a4f16e1e90d4228bd790aedfc760f095b0e88313bd741
SHA512

b86573344b67606c047207b8a76893f67879ae4cefc805e83742c8fb87fefd74a9d44da770985be88d2996d5dbceaa200963ccd92d440fde9c496bf76e932258
SSDEEP

12288:ecehqVl7RZdIUvX6nJFIWH/7lt07gHfGCBsnhRoIUhfNRS9+zGpb1g:uhMl7RZdIUf6bLf770sfknzoIyfuN

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

Checks BIOS information in registry 2 TTPs 2 IoCs

BIOS information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	regsvr32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	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-1-5-21-929662420-1054238289-2961194603-1000\Software\Wine	regsvr32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2012	regsvr32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2012	regsvr32.exe
2012	regsvr32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2128 wrote to memory of 2012	2128	regsvr32.exe	84
PID 2128 wrote to memory of 2012	2128	regsvr32.exe	84
PID 2128 wrote to memory of 2012	2128	regsvr32.exe	84

C:\Windows\system32\regsvr32.exe
regsvr32 /s C:\Users\Admin\AppData\Local\Temp\b4ab0f92c1cdb467449a4f16e1e90d4228bd790aedfc760f095b0e88313bd741.dll
1⤵
- Suspicious use of WriteProcessMemory
PID:2128
- C:\Windows\SysWOW64\regsvr32.exe
  /s C:\Users\Admin\AppData\Local\Temp\b4ab0f92c1cdb467449a4f16e1e90d4228bd790aedfc760f095b0e88313bd741.dll
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:2012

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2012-132-0x0000000000000000-mapping.dmp

Download
memory/2012-133-0x0000000010000000-0x00000000101BC000-memory.dmp

Filesize
1.7MB

Download
memory/2012-134-0x00000000022F0000-0x000000000238D000-memory.dmp

Filesize
628KB

Download
memory/2012-135-0x0000000077C70000-0x0000000077E13000-memory.dmp

Filesize
1.6MB

Download