e6635b508fda10bcdac6c42de3393be098f24a5b66248f84ccd952388f3a50be

Analysis

max time kernel
43s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27/11/2022, 16:03

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General

Target

e6635b508fda10bcdac6c42de3393be098f24a5b66248f84ccd952388f3a50be.dll
Size

1.2MB
MD5

8b2b9c0129c573553c2330cb6ee4fdee
SHA1

51114cdfa4ca12c56b6a9d5ab05673b683f87900
SHA256

e6635b508fda10bcdac6c42de3393be098f24a5b66248f84ccd952388f3a50be
SHA512

b7419c9a37dec951896e21415a89fcc9dea34941bd298e45b25f2814dee6f03ef4519339e641225b354646cb63170c25884775b2e3f7a3a2288c3a7e769a5383
SSDEEP

24576:J8xWGRs0FQUHFqQsPKpSq0Ohcy5udCgFIcsOWInbfyGUD:GW0TlHFqQ8Kf0Ohx5udzDsOWofzUD

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-1-5-21-3845472200-3839195424-595303356-1000\Software\Wine	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
536	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
536	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27
PID 1944 wrote to memory of 536	1944	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e6635b508fda10bcdac6c42de3393be098f24a5b66248f84ccd952388f3a50be.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1944
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e6635b508fda10bcdac6c42de3393be098f24a5b66248f84ccd952388f3a50be.dll,#1
  2⤵
  - 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:536

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/536-55-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

Filesize
8KB

Download
memory/536-56-0x00000000751F0000-0x000000007551B000-memory.dmp

Filesize
3.2MB

Download
memory/536-57-0x0000000074EC0000-0x00000000751EB000-memory.dmp

Filesize
3.2MB

Download
memory/536-58-0x0000000077E70000-0x0000000077FF0000-memory.dmp

Filesize
1.5MB

Download
memory/536-59-0x0000000077E70000-0x0000000077FF0000-memory.dmp

Filesize
1.5MB

Download