829d348eb2637386211bfe31b9ce1cca1c545e3a18a60bf20513a969fe97596b

Analysis

max time kernel
141s
max time network
130s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
30-05-2024 17:24

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General

Target

gasai_cracked/crack.dll
Size

2.9MB
MD5

e42615c8afc31caeddcc6080933fe10e
SHA1

30f545b60fe0eec20f00304c16cfdfd8860513f9
SHA256

37d493e23a12be12f02d3663348b1992d31f4a717637324922b1bab082ab7935
SHA512

62d0eea5c31cf83e8b6e14a51405161d88ad9b514485b33bf31863c15318b5fb18383eb1812ea13b117254fff245e5d034d4943822367ab25fd84219f6298de4
SSDEEP

49152:Vv58YPYu3ui4i8lHWXXh7R+2IeVYP8w4U5nVkHNgQOmC6yxI9BNVEpcBpa6YM:JPPnei4i8lMXh7RQeSkW5VCgEC6W0Bzm

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 3 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral11/memory/2236-1-0x000007FEF5810000-0x000007FEF604B000-memory.dmp	themida
behavioral11/memory/2236-3-0x000007FEF5810000-0x000007FEF604B000-memory.dmp	themida
behavioral11/memory/2236-4-0x000007FEF5810000-0x000007FEF604B000-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 WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2236 wrote to memory of 1740	2236	rundll32.exe	28
PID 2236 wrote to memory of 1740	2236	rundll32.exe	28
PID 2236 wrote to memory of 1740	2236	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\gasai_cracked\crack.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Checks whether UAC is enabled
- Suspicious use of WriteProcessMemory
PID:2236
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 2236 -s 128
  2⤵
  PID:1740

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/2236-1-0x000007FEF5810000-0x000007FEF604B000-memory.dmp

Filesize
8.2MB

Download
memory/2236-0-0x000007FEF6050000-0x000007FEF688B000-memory.dmp

Filesize
8.2MB

Download
memory/2236-3-0x000007FEF5810000-0x000007FEF604B000-memory.dmp

Filesize
8.2MB

Download
memory/2236-2-0x000007FEF6050000-0x000007FEF688B000-memory.dmp

Filesize
8.2MB

Download
memory/2236-4-0x000007FEF5810000-0x000007FEF604B000-memory.dmp

Filesize
8.2MB

Download
memory/2236-6-0x000007FEF6050000-0x000007FEF688B000-memory.dmp

Filesize
8.2MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads