5f91819d5abee47e258dc38e66e4ff93b857b4dccba7cb12bc805a47eb089f54

Analysis

max time kernel
37s
max time network
41s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
19/09/2022, 09:17

Target

5f91819d5abee47e258dc38e66e4ff93b857b4dccba7cb12bc805a47eb089f54.dll
Size

84KB
MD5

65fc3a16280250d84d720cf64701f739
SHA1

5147b214f2d3d0a85653f4e921d758507a98666f
SHA256

5f91819d5abee47e258dc38e66e4ff93b857b4dccba7cb12bc805a47eb089f54
SHA512

aa379658d575a891592797cc8b8a37f95325f55f2359e3b22c04e087493ac94fef46fb589a3750def204fc173c5632ec613d76469968cc79997bf669f1c35b27
SSDEEP

1536:PPFWaUqja5xNynFn0mKBYsbCocA+Xb54bBK:XFWOO5CnFn0mKB3/cA+VY

Score

6^/10

Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

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

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	rundll32.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1644	rundll32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27
PID 1672 wrote to memory of 1644	1672	rundll32.exe	27

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f91819d5abee47e258dc38e66e4ff93b857b4dccba7cb12bc805a47eb089f54.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1672
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5f91819d5abee47e258dc38e66e4ff93b857b4dccba7cb12bc805a47eb089f54.dll,#1
  2⤵
  - Writes to the Master Boot Record (MBR)
  - Suspicious behavior: EnumeratesProcesses
  PID:1644

Initial Access

Execution

Persistence

Bootkit

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

memory/1644-55-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

Filesize
8KB

Download
memory/1644-56-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/1644-58-0x0000000010000000-0x0000000010009000-memory.dmp

Filesize
36KB

Download
memory/1644-60-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download
memory/1644-61-0x0000000000120000-0x000000000012A000-memory.dmp

Filesize
40KB

Download