1c2c1235687f47a63d847b431a6460f7c39419726d317ebb8d344bbfc145291b

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 19:00

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General

Target

1c2c1235687f47a63d847b431a6460f7c39419726d317ebb8d344bbfc145291b.dll
Size

2.9MB
MD5

8dc3329fb9a2e6f5c03ab8061d0844a7
SHA1

c17e3c474bd65d1d66d088671d3f8cef22d5fb5b
SHA256

1c2c1235687f47a63d847b431a6460f7c39419726d317ebb8d344bbfc145291b
SHA512

ac65cb3df044213ac9eeed9925d86c87b3477fd52ca39c43341343e2f9a14eb5732cf2b7429c1cd8dd31a8cbe33f31940d883f71b8dc9faeff22fb0b92cf9872
SSDEEP

49152:pxe8pTFmOasM1XpsZuAU+qhEw6mlWCR+ZhkDvSIdwGPYFUVX8ywQmPd4P8pd:pxPTFmOT20Hqhx6YnDdlYFUVXnw7YUd

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

Themida packer 5 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2352-0-0x0000000010000000-0x0000000010726000-memory.dmp	themida
behavioral1/memory/2352-1-0x0000000010000000-0x0000000010726000-memory.dmp	themida
behavioral1/memory/2352-2-0x0000000010000000-0x0000000010726000-memory.dmp	themida
behavioral1/memory/2352-3-0x0000000010000000-0x0000000010726000-memory.dmp	themida
behavioral1/memory/2352-8-0x0000000010000000-0x0000000010726000-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
2352	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2352	rundll32.exe
2352	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28
PID 2220 wrote to memory of 2352	2220	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\1c2c1235687f47a63d847b431a6460f7c39419726d317ebb8d344bbfc145291b.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2220
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\1c2c1235687f47a63d847b431a6460f7c39419726d317ebb8d344bbfc145291b.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Checks BIOS information in registry
  - Checks whether UAC is enabled
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:2352

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/2352-0-0x0000000010000000-0x0000000010726000-memory.dmp

Filesize
7.1MB

Download
memory/2352-1-0x0000000010000000-0x0000000010726000-memory.dmp

Filesize
7.1MB

Download
memory/2352-2-0x0000000010000000-0x0000000010726000-memory.dmp

Filesize
7.1MB

Download
memory/2352-3-0x0000000010000000-0x0000000010726000-memory.dmp

Filesize
7.1MB

Download
memory/2352-6-0x00000000773C0000-0x00000000773C2000-memory.dmp

Filesize
8KB

Download
memory/2352-8-0x0000000010000000-0x0000000010726000-memory.dmp

Filesize
7.1MB

Download