b76e68efec4b416dfcb61ec2fe4cb4d7cf0dec0e5d4b636d612f7e3088e5aaf7

Analysis

max time kernel
6s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01/12/2022, 07:53

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General

Target

b76e68efec4b416dfcb61ec2fe4cb4d7cf0dec0e5d4b636d612f7e3088e5aaf7.dll
Size

1.1MB
MD5

1908d26d16017b07b136cd75b14c852d
SHA1

3947d2efe14baab4f6fa0a35247ea67cb48d6d3b
SHA256

b76e68efec4b416dfcb61ec2fe4cb4d7cf0dec0e5d4b636d612f7e3088e5aaf7
SHA512

1bc40fa007028b8cf096153cb4e47dda170c89e03d3781d9295aa771d0a6ac4d06414d6903eff0c135f6aa5d20fb1b4e2e6f569feae52689b8e3d96e231fb757
SSDEEP

24576:rlY/mVuLnAmw8/2HJM5knFvAgqkeInMc7dUbjpuh5KYNEZuZh:ry/mM1lUJM5w7rKIgMEa

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

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

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\gctconf.ini	rundll32.exe
File created	C:\Windows\SysWOW64\gct.ui	rundll32.exe

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
1932	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1932	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27
PID 844 wrote to memory of 1932	844	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b76e68efec4b416dfcb61ec2fe4cb4d7cf0dec0e5d4b636d612f7e3088e5aaf7.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b76e68efec4b416dfcb61ec2fe4cb4d7cf0dec0e5d4b636d612f7e3088e5aaf7.dll,#1
  2⤵
  - Identifies VirtualBox via ACPI registry values (likely anti-VM)
  - Identifies Wine through registry keys
  - Drops file in System32 directory
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - Suspicious behavior: EnumeratesProcesses
  PID:1932

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

T1497

Credential Access

Discovery

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1932-55-0x0000000076401000-0x0000000076403000-memory.dmp

Filesize
8KB

Download
memory/1932-57-0x0000000010000000-0x000000001028D000-memory.dmp

Filesize
2.6MB

Download
memory/1932-56-0x0000000010000000-0x000000001028D000-memory.dmp

Filesize
2.6MB

Download
memory/1932-58-0x0000000010000000-0x000000001028D000-memory.dmp

Filesize
2.6MB

Download
memory/1932-60-0x0000000077CD0000-0x0000000077E50000-memory.dmp

Filesize
1.5MB

Download
memory/1932-59-0x0000000010000000-0x000000001028D000-memory.dmp

Filesize
2.6MB

Download
memory/1932-61-0x0000000077CD0000-0x0000000077E50000-memory.dmp

Filesize
1.5MB

Download