f943d0e4be29abc739a658ca25c068884d52f258e99e4784146770c234b9b8ce

Analysis

max time kernel
150s
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
08/01/2024, 16:17

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General

Target

f943d0e4be29abc739a658ca25c068884d52f258e99e4784146770c234b9b8ce.dll
Size

7.3MB
MD5

0bdb466b73541e13dde8618712b3e07f
SHA1

025445867adb479e434ab78604785116fe52a94b
SHA256

f943d0e4be29abc739a658ca25c068884d52f258e99e4784146770c234b9b8ce
SHA512

0bb2a30954881a5c07aa248865d205e15033f8dac9ddcf8247c2ec728dc424484d5a72fec5127066348d6abf008c62cdd17b5160dbd4acf253fd5c968c162e5e
SSDEEP

196608:MCh83PaiF5kdtoFrfuzOu+tUnNeVKKREUq:vi/ykZfuzOuVNed

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__	rundll32.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\VideoBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	rundll32.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-1-5-21-1168293393-3419776239-306423207-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
3220	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
404	3220	WerFault.exe	15

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3220	rundll32.exe
3220	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3220	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4036 wrote to memory of 3220	4036	rundll32.exe	15
PID 4036 wrote to memory of 3220	4036	rundll32.exe	15
PID 4036 wrote to memory of 3220	4036	rundll32.exe	15

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\f943d0e4be29abc739a658ca25c068884d52f258e99e4784146770c234b9b8ce.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\f943d0e4be29abc739a658ca25c068884d52f258e99e4784146770c234b9b8ce.dll,#1
  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
  - Suspicious use of SetWindowsHookEx
  PID:3220
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3220 -s 936
    3⤵
    - Program crash
    PID:404

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3220 -ip 3220
1⤵
PID:2440

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

System Information Discovery

T1082

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/3220-0-0x0000000010000000-0x0000000010CA7000-memory.dmp

Filesize
12.7MB

Download
memory/3220-1-0x0000000077104000-0x0000000077106000-memory.dmp

Filesize
8KB

Download
memory/3220-8-0x0000000003C10000-0x0000000003C11000-memory.dmp

Filesize
4KB

Download
memory/3220-16-0x0000000010000000-0x0000000010CA7000-memory.dmp

Filesize
12.7MB

Download
memory/3220-15-0x0000000003C00000-0x0000000003C01000-memory.dmp

Filesize
4KB

Download
memory/3220-14-0x0000000003B60000-0x0000000003B61000-memory.dmp

Filesize
4KB

Download
memory/3220-13-0x0000000003BB0000-0x0000000003BB1000-memory.dmp

Filesize
4KB

Download
memory/3220-12-0x0000000003BF0000-0x0000000003BF1000-memory.dmp

Filesize
4KB

Download
memory/3220-11-0x0000000003BD0000-0x0000000003BD1000-memory.dmp

Filesize
4KB

Download
memory/3220-9-0x0000000003C80000-0x0000000003C81000-memory.dmp

Filesize
4KB

Download
memory/3220-10-0x0000000003C90000-0x0000000003C91000-memory.dmp

Filesize
4KB

Download
memory/3220-7-0x0000000003CB0000-0x0000000003CB1000-memory.dmp

Filesize
4KB

Download
memory/3220-6-0x0000000003CA0000-0x0000000003CA1000-memory.dmp

Filesize
4KB

Download
memory/3220-5-0x0000000003CF0000-0x0000000003CF2000-memory.dmp

Filesize
8KB

Download
memory/3220-3-0x0000000003D70000-0x0000000003D72000-memory.dmp

Filesize
8KB

Download
memory/3220-4-0x0000000003CC0000-0x0000000003CC1000-memory.dmp

Filesize
4KB

Download
memory/3220-18-0x0000000003F00000-0x0000000003F02000-memory.dmp

Filesize
8KB

Download
memory/3220-2-0x0000000010000000-0x0000000010CA7000-memory.dmp

Filesize
12.7MB

Download