f4bcf6c24b99666c523f2364ff26e23931e8e594af5b4527a0cdc98dbfe72b0f

Analysis

max time kernel
121s
max time network
129s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
31/12/2023, 03:47

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General

Target

26de7dce5b03de18618ccffacb5e80b3.dll
Size

2.2MB
MD5

26de7dce5b03de18618ccffacb5e80b3
SHA1

d60913ea70a875abff085c14be1a8297c1308941
SHA256

f4bcf6c24b99666c523f2364ff26e23931e8e594af5b4527a0cdc98dbfe72b0f
SHA512

1f78395a169e4d8f27aad962d386fd55b1d4c453ebd33fc3221b95afac5a7d44e54fa52e0f5719c561ab318dd72cad588017a8f3518db9c0f089da2b482b54db
SSDEEP

49152:HReqHgVbX92fshlPs/T/ZKiWCwsLD06xQn+/F3Q1sBp1b9Mos1KM6J:HRRAdgkfs/A+pLPxQ+93QSBr9DJ

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/1892-0-0x0000000010000000-0x00000000105F3000-memory.dmp	themida
behavioral1/memory/1892-1-0x0000000010000000-0x00000000105F3000-memory.dmp	themida
behavioral1/memory/1892-2-0x0000000010000000-0x00000000105F3000-memory.dmp	themida
behavioral1/memory/1892-3-0x0000000010000000-0x00000000105F3000-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
1892	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14
PID 1680 wrote to memory of 1892	1680	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\26de7dce5b03de18618ccffacb5e80b3.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 NtSetInformationThreadHideFromDebugger
PID:1892

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\26de7dce5b03de18618ccffacb5e80b3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1680

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/1892-0-0x0000000010000000-0x00000000105F3000-memory.dmp

Filesize
5.9MB

Download
memory/1892-1-0x0000000010000000-0x00000000105F3000-memory.dmp

Filesize
5.9MB

Download
memory/1892-2-0x0000000010000000-0x00000000105F3000-memory.dmp

Filesize
5.9MB

Download
memory/1892-4-0x0000000077120000-0x0000000077122000-memory.dmp

Filesize
8KB

Download
memory/1892-3-0x0000000010000000-0x00000000105F3000-memory.dmp

Filesize
5.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads