6b987fa3ce0cfbc592d819bfd7ae7ffddfea58ecec59b92f54a012e272a23dc6

Analysis

max time kernel
10s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/10/2022, 05:08

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General

Target

6b987fa3ce0cfbc592d819bfd7ae7ffddfea58ecec59b92f54a012e272a23dc6.dll
Size

1.5MB
MD5

a8d6b38e2b27a2349c52f6697c901dac
SHA1

5addff19d2b6f94013881839589fafff851e82c8
SHA256

6b987fa3ce0cfbc592d819bfd7ae7ffddfea58ecec59b92f54a012e272a23dc6
SHA512

4d1a73ff8c0932f6e077548ff0d95ecea86cc3e0410c5b5ffd2dc5c911c67e45e1eaea57f0a1056273b8909aab86f904ac67a3f23466c109358f42f456b5d72f
SSDEEP

24576:p+Y9wzdAUJ8IfB4rEUiPJOokdfZAO/K5u5ZsjqZ2yCl0+IpHJJ9lCtTyF8+Y7afR:p+ywzdFJ8FrEU43/5ZqCpkH3MTyR+anR

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

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-1-5-21-2292972927-2705560509-2768824231-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1740	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1740	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14
PID 1608 wrote to memory of 1740	1608	rundll32.exe	14

C:\Windows\SysWOW64\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b987fa3ce0cfbc592d819bfd7ae7ffddfea58ecec59b92f54a012e272a23dc6.dll,#1
1⤵
- Identifies VirtualBox via ACPI registry values (likely anti-VM)
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
PID:1740

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\6b987fa3ce0cfbc592d819bfd7ae7ffddfea58ecec59b92f54a012e272a23dc6.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1608

Network

MITRE ATT&CK Enterprise v6

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/1740-55-0x0000000076261000-0x0000000076263000-memory.dmp

Filesize
8KB

Download
memory/1740-56-0x0000000001F20000-0x000000000230E000-memory.dmp

Filesize
3.9MB

Download
memory/1740-57-0x0000000077A30000-0x0000000077BB0000-memory.dmp

Filesize
1.5MB

Download
memory/1740-58-0x0000000001F20000-0x000000000230E000-memory.dmp

Filesize
3.9MB

Download
memory/1740-59-0x0000000001F20000-0x000000000230E000-memory.dmp

Filesize
3.9MB

Download
memory/1740-60-0x0000000077A30000-0x0000000077BB0000-memory.dmp

Filesize
1.5MB

Download