544831d0d280223ef51df2c85bf12e550029fad4ccebe9df0b6e2481de345767

Analysis

max time kernel
122s
max time network
125s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
05/04/2024, 21:34

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General

Target

544831d0d280223ef51df2c85bf12e550029fad4ccebe9df0b6e2481de345767.dll
Size

2.5MB
MD5

11270854ee2976b24ee1e6fdca9cbe40
SHA1

852c2117def4242cabba5ae7ddd4016bdfd42840
SHA256

544831d0d280223ef51df2c85bf12e550029fad4ccebe9df0b6e2481de345767
SHA512

adb7f25d7daf527f9adee8174c1907cb97cc1376a6ee9e8c1945935ef14e0540a0b88434dd9f43f96b924e4b17db5e2c26737a059476ac41fecee2169241a1a2
SSDEEP

49152:rLTqR/ArM3pvBpHyLWXm3iizCbTc8xP3kM0omJWOg5vfRuYJbXDIP:nTE/ArqvJmyieTcycoK7g5Xp0

Score

9^/10

evasion themida trojan

Malware Config

Signatures

Detects executables packed with Themida 6 IoCs

resource	yara_rule
behavioral1/memory/2504-0-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2504-1-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2504-2-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2504-3-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2504-5-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida
behavioral1/memory/2504-6-0x0000000010000000-0x000000001067E000-memory.dmp	INDICATOR_EXE_Packed_Themida

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 6 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/2504-0-0x0000000010000000-0x000000001067E000-memory.dmp	themida
behavioral1/memory/2504-1-0x0000000010000000-0x000000001067E000-memory.dmp	themida
behavioral1/memory/2504-2-0x0000000010000000-0x000000001067E000-memory.dmp	themida
behavioral1/memory/2504-3-0x0000000010000000-0x000000001067E000-memory.dmp	themida
behavioral1/memory/2504-5-0x0000000010000000-0x000000001067E000-memory.dmp	themida
behavioral1/memory/2504-6-0x0000000010000000-0x000000001067E000-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
2504	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28
PID 1944 wrote to memory of 2504	1944	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\544831d0d280223ef51df2c85bf12e550029fad4ccebe9df0b6e2481de345767.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\544831d0d280223ef51df2c85bf12e550029fad4ccebe9df0b6e2481de345767.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
  PID:2504

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

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Downloads

memory/2504-0-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-1-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-2-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-3-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-4-0x0000000077400000-0x0000000077402000-memory.dmp

Filesize
8KB

Download
memory/2504-5-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-6-0x0000000010000000-0x000000001067E000-memory.dmp

Filesize
6.5MB

Download
memory/2504-8-0x00000000763B0000-0x00000000764C0000-memory.dmp

Filesize
1.1MB

Download
memory/2504-7-0x00000000763B0000-0x00000000764C0000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads