d0f22c1526669cda2ccf4362c23fd7c4c884a7ae61aa8b8af149d985aec0cdb8

Analysis

max time kernel
122s
max time network
126s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
23/01/2024, 17:05

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General

Target

701813a2c24d366c20ceedd6524f7929.dll
Size

3.9MB
MD5

701813a2c24d366c20ceedd6524f7929
SHA1

21148e3707bcfcaf7db3be0b119d020b2d011a85
SHA256

d0f22c1526669cda2ccf4362c23fd7c4c884a7ae61aa8b8af149d985aec0cdb8
SHA512

d33d1a30395c00c16db48c5e7eabc4f57809d4b1614a6ce13f4e9c3789472118b96f241b36d6d5d0c65f36e05026e8122f22ff75dc8c56a425f68d016ce7a236
SSDEEP

98304:N9C5b7Y1e6n9Jt8QMLKETgAMzze1oOn22J4FBZirSGPIsWfQ:N054e69MDK9AWzrOn/iFElE4

Score

9^/10

evasion

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

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	2040	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

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2040	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2040	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16
PID 3048 wrote to memory of 2040	3048	rundll32.exe	16

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\701813a2c24d366c20ceedd6524f7929.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Blocklisted process makes network request
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:2040

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\701813a2c24d366c20ceedd6524f7929.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3048

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/2040-0-0x0000000074980000-0x00000000752D1000-memory.dmp

Filesize
9.3MB

Download
memory/2040-1-0x00000000738A0000-0x00000000741F1000-memory.dmp

Filesize
9.3MB

Download
memory/2040-2-0x0000000074980000-0x00000000752D1000-memory.dmp

Filesize
9.3MB

Download
memory/2040-3-0x00000000738A0000-0x00000000741F1000-memory.dmp

Filesize
9.3MB

Download
memory/2040-4-0x0000000077E00000-0x0000000077E02000-memory.dmp

Filesize
8KB

Download
memory/2040-6-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download
memory/2040-13-0x0000000000320000-0x0000000000321000-memory.dmp

Filesize
4KB

Download
memory/2040-12-0x0000000000310000-0x0000000000311000-memory.dmp

Filesize
4KB

Download
memory/2040-11-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/2040-10-0x0000000000330000-0x0000000000331000-memory.dmp

Filesize
4KB

Download
memory/2040-9-0x00000000002E0000-0x00000000002E1000-memory.dmp

Filesize
4KB

Download
memory/2040-8-0x00000000738A0000-0x00000000741F1000-memory.dmp

Filesize
9.3MB

Download
memory/2040-5-0x000000006FFF0000-0x0000000070000000-memory.dmp

Filesize
64KB

Download