6698ac5893a87bf3fb9c932ce7a8354e96af14ef271cd803e79a29c7c196e341

Analysis

max time kernel
147s
max time network
156s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
15/03/2024, 20:19

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General

Target

cc561df6a742feaf5fbee1119fae30ff.dll
Size

2.2MB
MD5

cc561df6a742feaf5fbee1119fae30ff
SHA1

a9561ba73168f1add8fc9266c90ec253c0e55f65
SHA256

6698ac5893a87bf3fb9c932ce7a8354e96af14ef271cd803e79a29c7c196e341
SHA512

a8a26ce29f2595b89f9ddf0c1510cd6a8541f608401b41d86e15efe8977e5a0931e13aa8f55534702b1fdfb86a7b9bc6333a93f7c309c0753bf0a1297d2f0278
SSDEEP

49152:HoCjQ4nU7NG3vLFGW8GHgYOwTvRwVZaLIiwlf8hRkmq4kg:ICjQ/JGj8dDSvEiSf1mqPg

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-1-5-21-557049126-2506969350-2798870634-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
488	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1068	488	WerFault.exe	86

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
488	rundll32.exe
488	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 488	2208	rundll32.exe	86
PID 2208 wrote to memory of 488	2208	rundll32.exe	86
PID 2208 wrote to memory of 488	2208	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc561df6a742feaf5fbee1119fae30ff.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cc561df6a742feaf5fbee1119fae30ff.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
  PID:488
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 488 -s 668
    3⤵
    - Program crash
    PID:1068

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 488 -ip 488
1⤵
PID:4088

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/488-0-0x0000000074CA0000-0x0000000075455000-memory.dmp

Filesize
7.7MB

Download
memory/488-1-0x00000000779F4000-0x00000000779F6000-memory.dmp

Filesize
8KB

Download
memory/488-2-0x0000000000BE0000-0x0000000000BE1000-memory.dmp

Filesize
4KB

Download
memory/488-3-0x0000000074CA0000-0x0000000075455000-memory.dmp

Filesize
7.7MB

Download
memory/488-4-0x0000000000BD0000-0x0000000000BD1000-memory.dmp

Filesize
4KB

Download
memory/488-5-0x0000000000BC0000-0x0000000000BC1000-memory.dmp

Filesize
4KB

Download