96f6a0d2a2c0103b735cb140e05602097b2e03951fffbc891ec09b9fe48a77e9

Analysis

max time kernel
149s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
31-10-2024 05:17

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General

Target

7zxa.dll
Size

74.9MB
MD5

86d806cecf0bf1c868ebe41b6357b034
SHA1

010820271280c074f386e051513fbb1b73bb5996
SHA256

3149395671d39388a65a4bff1b9671cee226f503c8432da8e32e17374cb36aaf
SHA512

6d39c6b4328f21dffdc5784d9a20d0fe321ea173288e0a1f67a3d4d0e805bb7bde61329b290bb6501a14d1639d085aeb348c5c663a8701c6ce8860b85031c3c4
SSDEEP

393216:aQTN2oFVasRj2ylzbU6oe7haEB9JtGdrLTzfvJIa5yJBz7h8zxPtYLx5mYfAHUi:WoZZYETXaIaIp8zxtYd5mYfc

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
1976	3412	WerFault.exe	85

System Location Discovery: System Language Discovery 1 TTPs 2 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

Processes:

rundll32.exeSCHTASKS.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	SCHTASKS.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

rundll32.exe

pid	Process
3412	rundll32.exe
3412	rundll32.exe
3412	rundll32.exe
3412	rundll32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

Processes:

rundll32.exe

pid	Process
3412	rundll32.exe
3412	rundll32.exe
3412	rundll32.exe
3412	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

rundll32.exerundll32.exe

description	pid	Process	procid_target
PID 5096 wrote to memory of 3412	5096	rundll32.exe	85
PID 5096 wrote to memory of 3412	5096	rundll32.exe	85
PID 5096 wrote to memory of 3412	5096	rundll32.exe	85
PID 3412 wrote to memory of 4088	3412	rundll32.exe	88
PID 3412 wrote to memory of 4088	3412	rundll32.exe	88
PID 3412 wrote to memory of 4088	3412	rundll32.exe	88

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\7zxa.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5096
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\7zxa.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3412
- - C:\Windows\SysWOW64\SCHTASKS.exe
    SCHTASKS /Query /TN "rundll32"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:4088
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3412 -s 1044
    3⤵
    - Program crash
    PID:1976

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3412 -ip 3412
1⤵
PID:3944

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/3412-0-0x0000000002270000-0x0000000006E21000-memory.dmp

Filesize
75.7MB

Download
memory/3412-2-0x0000000002270000-0x0000000006E21000-memory.dmp

Filesize
75.7MB

Download