43c271b3c387f5f3485483313e9f018ba329cf0aa7104f596ab20a85ed06a9c2

Analysis

max time kernel
45s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
25/11/2022, 23:42

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General

Target

43c271b3c387f5f3485483313e9f018ba329cf0aa7104f596ab20a85ed06a9c2.dll
Size

877KB
MD5

1350e6e13548cf0d9e4a7e1c5f1876b8
SHA1

7049bb9974ff8d98fb4ff1a808efe5efd65b4701
SHA256

43c271b3c387f5f3485483313e9f018ba329cf0aa7104f596ab20a85ed06a9c2
SHA512

e29058f867a6f78ab08de94121423e8fee3503d56ea552b0b7bcd5f0fc13a6a6b0d73d215e1c9484f1b20a9e4956d69afc82810c97a5dfdccead209b8c4b51d4
SSDEEP

24576:XdFR7JhaFknia2nFJLU6LMSHf+ZoVVjWo:R7JIFkctMI+aVNh

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

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1420	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1420	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28
PID 1284 wrote to memory of 1420	1284	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\43c271b3c387f5f3485483313e9f018ba329cf0aa7104f596ab20a85ed06a9c2.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1284
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\43c271b3c387f5f3485483313e9f018ba329cf0aa7104f596ab20a85ed06a9c2.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Identifies Wine through registry keys
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1420

Network

MITRE ATT&CK Enterprise v6

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/1420-55-0x00000000762F1000-0x00000000762F3000-memory.dmp

Filesize
8KB

Download
memory/1420-56-0x0000000074F90000-0x0000000075185000-memory.dmp

Filesize
2.0MB

Download
memory/1420-57-0x0000000075190000-0x0000000075385000-memory.dmp

Filesize
2.0MB

Download
memory/1420-58-0x0000000037650000-0x0000000037660000-memory.dmp

Filesize
64KB

Download
memory/1420-59-0x0000000037650000-0x0000000037660000-memory.dmp

Filesize
64KB

Download
memory/1420-60-0x0000000037650000-0x0000000037660000-memory.dmp

Filesize
64KB

Download
memory/1420-61-0x0000000037650000-0x0000000037660000-memory.dmp

Filesize
64KB

Download
memory/1420-62-0x0000000037650000-0x0000000037660000-memory.dmp

Filesize
64KB

Download
memory/1420-63-0x0000000077D80000-0x0000000077F00000-memory.dmp

Filesize
1.5MB

Download
memory/1420-64-0x0000000075190000-0x0000000075385000-memory.dmp

Filesize
2.0MB

Download
memory/1420-65-0x0000000077D80000-0x0000000077F00000-memory.dmp

Filesize
1.5MB

Download