b172a3d4517930c5e852395450be28133fc05d61769d0bac58e3336a50833406

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2024 09:39

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General

Target

b172a3d4517930c5e852395450be28133fc05d61769d0bac58e3336a50833406N.dll
Size

76KB
MD5

81dd432081ba3e5f65d8bf7b12390d30
SHA1

2182ab476e95497ac5735815ed962d734cd491f2
SHA256

b172a3d4517930c5e852395450be28133fc05d61769d0bac58e3336a50833406
SHA512

644d93f7412c6d624c74a662eb4a37eadd231c5c15d32cb4162ee1a71fc4e115c924d34fa45a0e88c7fba94e3436f317e7a76f03f1d45d049f8fdd04743e2631
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zgdp:c8y93KQjy7G55riF1cMo03W

Score

8^/10

discovery persistence privilege_escalation upx

Malware Config

Signatures

Event Triggered Execution: AppInit DLLs 1 TTPs
Adversaries may establish persistence and/or elevate privileges by executing malicious content triggered by AppInit DLLs loaded into processes.
persistence privilege_escalation

AppInit DLLs
T1546.010

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1120-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1120-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2896	1120	WerFault.exe	82

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	1120	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1448 wrote to memory of 1120	1448	rundll32.exe	82
PID 1448 wrote to memory of 1120	1448	rundll32.exe	82
PID 1448 wrote to memory of 1120	1448	rundll32.exe	82

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b172a3d4517930c5e852395450be28133fc05d61769d0bac58e3336a50833406N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1448
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b172a3d4517930c5e852395450be28133fc05d61769d0bac58e3336a50833406N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1120
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1120 -s 716
    3⤵
    - Program crash
    PID:2896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1120 -ip 1120
1⤵
PID:4504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

Privilege Escalation

Event Triggered Execution

T1546

AppInit DLLs

T1546.010

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/1120-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/1120-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download