b21a4692deaab31b04b7fb67bb67ddb956353c157b8ffc99c6b2f75cd4ae5983

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 18:28

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General

Target

b21a4692deaab31b04b7fb67bb67ddb956353c157b8ffc99c6b2f75cd4ae5983.dll
Size

76KB
MD5

b2518b174ef418b4bac69302614759cb
SHA1

fd179822ad6b5601658185b12608c234f28a961d
SHA256

b21a4692deaab31b04b7fb67bb67ddb956353c157b8ffc99c6b2f75cd4ae5983
SHA512

2c12a8e25452992494d6e92228e6aee4319038a2ec3b4bea202348d2e629b75d26426036f44460209a008c47f1caab40da0c7564eec247fee2c32d1dc18dc9fc
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zt/j8nw:c8y93KQjy7G55riF1cMo03Z

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/5016-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/5016-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
112	5016	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	5016	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5040 wrote to memory of 5016	5040	rundll32.exe	83
PID 5040 wrote to memory of 5016	5040	rundll32.exe	83
PID 5040 wrote to memory of 5016	5040	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21a4692deaab31b04b7fb67bb67ddb956353c157b8ffc99c6b2f75cd4ae5983.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5040
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b21a4692deaab31b04b7fb67bb67ddb956353c157b8ffc99c6b2f75cd4ae5983.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:5016
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 5016 -s 700
    3⤵
    - Program crash
    PID:112

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 5016 -ip 5016
1⤵
PID:2836

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/5016-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/5016-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download