943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f

Analysis

max time kernel
145s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
19/03/2023, 04:05

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General

Target

943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe
Size

4.9MB
MD5

b9d71891e236be1aeed9b9a6a99dc8ce
SHA1

0c82d8368887478652c3d1049b6c211ba51b235c
SHA256

943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f
SHA512

f8559c3392701a063e59444f916a971baf4a9691925f8b368d1906f249e9fbe458af573b80d4d311ff3e47d849b5d1a88ee9e1fdec16afd34eaeb1faaf3a6a3f
SSDEEP

98304:gu0gmbyldTpymEiaWIfx73bSl8GBUkMJpHTYYdVY7vM16E3GqlfiTv:f0gxv1ENLLSaGekwTYYdiZE3GqlE

Score

7^/10

bootkit persistence

Malware Config

Signatures

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	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBIOSDate	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1067

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe

Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBIOSDate	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe

Runs net.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2180 wrote to memory of 4424	2180	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe	85
PID 2180 wrote to memory of 4424	2180	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe	85
PID 2180 wrote to memory of 4424	2180	943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe	85
PID 4424 wrote to memory of 4832	4424	cmd.exe	87
PID 4424 wrote to memory of 4832	4424	cmd.exe	87
PID 4424 wrote to memory of 4832	4424	cmd.exe	87
PID 4832 wrote to memory of 3828	4832	net.exe	88
PID 4832 wrote to memory of 3828	4832	net.exe	88
PID 4832 wrote to memory of 3828	4832	net.exe	88

C:\Users\Admin\AppData\Local\Temp\943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe
"C:\Users\Admin\AppData\Local\Temp\943543daaa321ea04b8002ca12102484e06d3dbd912d67fe93ada07379838f7f.exe"
1⤵
- Checks BIOS information in registry
- Writes to the Master Boot Record (MBR)
- Enumerates system info in registry
- Suspicious use of WriteProcessMemory
PID:2180
- C:\Windows\SysWOW64\cmd.exe
  cmd.exe /c net stop Spooler
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4424
- - C:\Windows\SysWOW64\net.exe
    net stop Spooler
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4832
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 stop Spooler
      4⤵
      PID:3828

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Bootkit

T1067

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2180-133-0x00000000007C0000-0x00000000007C1000-memory.dmp

Filesize
4KB

Download
memory/2180-134-0x0000000000400000-0x00000000004B5000-memory.dmp

Filesize
724KB

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads