4b2f8eee54f9866a60fcd29782c9f8eecfdb758fe633c43dc7516d16a12fa392

Analysis

max time kernel
93s
max time network
116s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
10/09/2024, 09:37

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General

Target
c1bd53c0f02f600f569754f7c270b7b0N.dll
Size 76KB
Sample240910-llhlksxapl
SHA256 4b2f8eee54f9866a60fcd29782c9f8eecfdb758fe633c43dc7516d16a12fa392
MD5 c1bd53c0f02f600f569754f7c270b7b0
SHA1 ee4bf7ce3dda2a9a12b94c53798323a170291326
SHA512 b1849e910c0d42882efc18f0f460cc41a1c083396dc6eff55a5a40147e63426bb7bd4f2662fff90f5c08711a2311950195faf11340fad94deac33d8be0e6182c
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z2XbLM:c8y93KQjy7G55riF1cMo03QXHM
MD5 SHA1 SHA512 SSDEEP

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/1748-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1748-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1356	1748	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	1748	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2184 wrote to memory of 1748	2184	rundll32.exe	83
PID 2184 wrote to memory of 1748	2184	rundll32.exe	83
PID 2184 wrote to memory of 1748	2184	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1bd53c0f02f600f569754f7c270b7b0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2184
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\c1bd53c0f02f600f569754f7c270b7b0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1748
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1748 -s 672
    3⤵
    - Program crash
    PID:1356

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1748 -ip 1748
1⤵
PID:4276

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/1748-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/1748-1-0x0000000010000000-0x0000000010030000-memory.dmp