a573a413cbb1694d985376788d42ab2b342e6ce94dd1599602b73f5cca695d8f

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
10/04/2024, 13:11

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General

Target

a573a413cbb1694d985376788d42ab2b342e6ce94dd1599602b73f5cca695d8f.dll
Size

2.4MB
MD5

5bf9b9d44414ca71dfd7159b00cbc8d6
SHA1

7bee238bbf995a118c1cd22299cfab8732d71eb2
SHA256

a573a413cbb1694d985376788d42ab2b342e6ce94dd1599602b73f5cca695d8f
SHA512

2ac034181a8be1d28d5fdcda6ac60ca2f51bb8a477f294804800fec5d54633064e5fa0be7ad82cec27164242ba5f6aafaa15ac8336d9054af88ec2186ea3f6a2
SSDEEP

49152:U1Y60SANj4KrFakICZnim2Ybv9e9xEoyiUJMJVnuJG:STyJrFaknl2Yjynu0

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 4 IoCs

Detects Themida, an advanced Windows software protection system.

themida

resource	yara_rule
behavioral1/memory/1992-0-0x0000000010000000-0x0000000010662000-memory.dmp	themida
behavioral1/memory/1992-1-0x0000000010000000-0x0000000010662000-memory.dmp	themida
behavioral1/memory/1992-2-0x0000000010000000-0x0000000010662000-memory.dmp	themida
behavioral1/memory/1992-3-0x0000000010000000-0x0000000010662000-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
1992	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28
PID 2360 wrote to memory of 1992	2360	rundll32.exe	28

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a573a413cbb1694d985376788d42ab2b342e6ce94dd1599602b73f5cca695d8f.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2360
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a573a413cbb1694d985376788d42ab2b342e6ce94dd1599602b73f5cca695d8f.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:1992

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/1992-0-0x0000000010000000-0x0000000010662000-memory.dmp

Filesize
6.4MB

Download
memory/1992-1-0x0000000010000000-0x0000000010662000-memory.dmp

Filesize
6.4MB

Download
memory/1992-2-0x0000000010000000-0x0000000010662000-memory.dmp

Filesize
6.4MB

Download
memory/1992-3-0x0000000010000000-0x0000000010662000-memory.dmp

Filesize
6.4MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads