67c6b6b43e4af18433b854081a5d746300502b07429fb5d73ce493fac26a3a8e

General

Target

VSWQBBUITB.dll
Size

11.4MB
MD5

841d67181966ffd3269b1c18a0850751
SHA1

f9edc2a6bc20a6618de97cb825b9314c15e9bb35
SHA256

e3520f4fdc7bc4b780dd20a277899682cae0b012eb715d7346f1636e634a52bc
SHA512

be697d4bbb9db2030c6be1c5055d4e4f158c6f8a9f51631b319ad849b2250b18bc9fdb4834629eba22bc86e4c4a9e6cf57f827a89a66d509238a608e52980a1f
SSDEEP

196608:JF85AYWEhydlfb4YsWtueQgq4VSAyHqewIAkgTZtl+yp+BA+DkBE:7kPWEh+be9544bKewVNsyp+BdkBE

Score

9^/10

evasion themida trojan

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\SystemBiosVersion	rundll32.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
2092	rundll32.exe

Themida packer 9 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2092-55-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-56-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-57-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-58-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-59-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-60-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-61-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-62-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida
behavioral1/memory/2092-86-0x0000000002060000-0x0000000003DA3000-memory.dmp	themida

Checks whether UAC is enabled 1 TTPs 1 IoCs

evasion trojan

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLUA	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2092	rundll32.exe

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2216	2092	WerFault.exe	28

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2092	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 1616 wrote to memory of 2092	1616	rundll32.exe	28
PID 2092 wrote to memory of 2216	2092	rundll32.exe	31
PID 2092 wrote to memory of 2216	2092	rundll32.exe	31
PID 2092 wrote to memory of 2216	2092	rundll32.exe	31
PID 2092 wrote to memory of 2216	2092	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\VSWQBBUITB.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\VSWQBBUITB.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Loads dropped DLL
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2092
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 332
    3⤵
    - Program crash
    PID:2216

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1

T1497

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

1

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

\Users\Admin\AppData\Local\Temp\41f820bc.dll

Filesize
8KB

MD5
d8f4ab8284f0fda871d6834e24bc6f37

SHA1
641948e44a1dcfd0ef68910768eb4b1ea6b49d10

SHA256
c09d0790e550694350b94ca6b077c54f983c135fab8990df5a75462804150912

SHA512
f65a916041846718306567d33273c3d0f41e0b26589cf6db46ec6c788ba0d87a708c94979d3bd0609142badca9e7129690b92169a07dcf7cd8c66698827d2fa0

Download Submit
memory/2092-54-0x0000000077040000-0x0000000077042000-memory.dmp

Filesize
8KB

Download
memory/2092-55-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-56-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-57-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-58-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-59-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-60-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-61-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-62-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download
memory/2092-64-0x0000000061E00000-0x0000000061EC1000-memory.dmp

Filesize
772KB

Download
memory/2092-86-0x0000000002060000-0x0000000003DA3000-memory.dmp

Filesize
29.3MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads