67df53e50fef54326d9a6a7ad5381e3f18aad855e6fb69fbeaed731320d7c58d

Analysis

max time kernel
94s
max time network
136s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02/10/2024, 13:58

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General

Target

ac8zt2/install.bat
Size

304B
MD5

3a80487df38d375da59fce122961b561
SHA1

d61f2ef16b8cf8ccdceaf5a0078108b8634faa8a
SHA256

243930c9a6eb6369057d681f6fb32374d7dcb46b2bafae4b638e84bfb1a023a8
SHA512

b90329a1cd816a57a28faaae473b1e9d7b03af780575967b715f4b35bc5817f58dcb84968aaa73b375b302e638c2b974f5b1e173a033a43084559e45f760e477

Score

5^/10

discovery upx

Malware Config

Signatures

Drops file in System32 directory 8 IoCs

description	ioc	Process
File created	C:\Windows\system32\msdrives\msdrvctrl.exe	cmd.exe
File opened for modification	C:\Windows\system32\msdrives\msdrvctrl.exe	cmd.exe
File created	C:\Windows\system32\msdrives\driverpp.sys	cmd.exe
File opened for modification	C:\Windows\system32\msdrives\driverpp.sys	cmd.exe
File created	C:\Windows\system32\msdrives\iedrives.dll	cmd.exe
File opened for modification	C:\Windows\system32\msdrives\iedrives.dll	cmd.exe
File created	C:\Windows\system32\msdrives\msdrv.EXE	cmd.exe
File opened for modification	C:\Windows\system32\msdrives\msdrv.EXE	cmd.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral8/memory/404-8-0x0000000000400000-0x000000000040F000-memory.dmp	upx
behavioral8/memory/404-9-0x0000000000400000-0x000000000040F000-memory.dmp	upx

System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	di.exe

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
656	Process not Found

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4744 wrote to memory of 404	4744	cmd.exe	83
PID 4744 wrote to memory of 404	4744	cmd.exe	83
PID 4744 wrote to memory of 404	4744	cmd.exe	83

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\ac8zt2\install.bat"
1⤵
- Drops file in System32 directory
- Suspicious use of WriteProcessMemory
PID:4744
- C:\Users\Admin\AppData\Local\Temp\ac8zt2\di.exe
  di.exe C:\Windows\system32\msdrives\driverpp.sys
  2⤵
  - System Location Discovery: System Language Discovery
  PID:404

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/404-8-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

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memory/404-9-0x0000000000400000-0x000000000040F000-memory.dmp

Filesize
60KB

Download