ef036741fd021935dc999f6a303c2ad67747477af27dd57399dd8077d416b51f

Analysis

max time kernel
93s
max time network
94s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
08-01-2025 03:30

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General

Target

ef036741fd021935dc999f6a303c2ad67747477af27dd57399dd8077d416b51fN.dll
Size

76KB
MD5

b5a718d33ac26f7189a13b3867a9c6a0
SHA1

aa7a3e7055657d05a9ccdf15d6d9a2a064eb3ec3
SHA256

ef036741fd021935dc999f6a303c2ad67747477af27dd57399dd8077d416b51f
SHA512

41cc1f89ffa1ceb2d14028775348683f9c3832d2fde39cb400ab1986a007b5cb2c32cefc6f314c1a993d8318d679b7a6b0b7265809c36d7dee2b0c3955299c50
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZwKJYKf8:c8y93KQjy7G55riF1cMo03y28

Score

5^/10

discovery upx

Malware Config

Signatures

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2072-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2072-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1172	2072	WerFault.exe	83

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	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2072	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2404 wrote to memory of 2072	2404	rundll32.exe	83
PID 2404 wrote to memory of 2072	2404	rundll32.exe	83
PID 2404 wrote to memory of 2072	2404	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef036741fd021935dc999f6a303c2ad67747477af27dd57399dd8077d416b51fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2404
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ef036741fd021935dc999f6a303c2ad67747477af27dd57399dd8077d416b51fN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2072
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2072 -s 712
    3⤵
    - Program crash
    PID:1172

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 2072 -ip 2072
1⤵
PID:4824

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/2072-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/2072-2-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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