cee065a78a687c149c7c7410b734290b33ed7d665121de0283311b2c868fa117

Analysis

max time kernel
145s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
01-11-2024 16:58

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General

Target

7zxa.dll
Size

74.9MB
MD5

7debcf459eda4083f84755ebf4f86b2e
SHA1

836415a2569edece9d171eb5466e2937cd6ac968
SHA256

34aba14b155a63db5f40ca0784104bc1003c5098752c52e726ee34d51bfabbdb
SHA512

607b39c4836c408db19a8739c44af1da0b39398b009c356162fbef28faeb4cd8ae811dcffbdf3b20b411376e45593cfabb34a83f3b8f3c8a30cb576d29d9f63b
SSDEEP

393216:FN6KVjMOasRE0Sepz8A6AUPattEG2aEUbwi5iHEJIa5yJBz7h8zxPtYLx5mYfAHb:Vj0X3A2z5H8IaIp8zxtYd5mYfc

Score

3^/10

discovery

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1820	2592	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

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

pid	Process
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe
2592	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2040 wrote to memory of 2592	2040	rundll32.exe	85
PID 2040 wrote to memory of 2592	2040	rundll32.exe	85
PID 2040 wrote to memory of 2592	2040	rundll32.exe	85
PID 2592 wrote to memory of 112	2592	rundll32.exe	88
PID 2592 wrote to memory of 112	2592	rundll32.exe	88
PID 2592 wrote to memory of 112	2592	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:2040
- 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:2592
- - C:\Windows\SysWOW64\SCHTASKS.exe
    SCHTASKS /Query /TN "rundll32"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:112
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2592 -s 1052
    3⤵
    - Program crash
    PID:1820

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2592 -ip 2592
1⤵
PID:4608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/2592-0-0x0000000002B60000-0x000000000771B000-memory.dmp

Filesize
75.7MB

Download
memory/2592-2-0x0000000002B60000-0x000000000771B000-memory.dmp

Filesize
75.7MB

Download