8c5c47b52eb7589af13b634264ea571d308a73f23f0bc4c847aeb01fd33d72f5

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
17/08/2024, 05:59

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General

Target
4f8a335a88e02783972c7b79c5440920N.dll
Size 76KB
Sample240817-gp398szhph
SHA256 8c5c47b52eb7589af13b634264ea571d308a73f23f0bc4c847aeb01fd33d72f5
MD5 4f8a335a88e02783972c7b79c5440920
SHA1 117ef111d37a6bfb6ff1a50dad217cac4e45f788
SHA512 4fb8bdfd055067b727b60afc69c68f89f6a81cec7ff0e69a0e09b50969d4b0fe1d1635a26ec876315f9bb9f0ed18672d253e4b82cdca1396c4aca560eb86707f
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zywhwy9LtS:c8y93KQjy7G55riF1cMo03Lt95S
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/536-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/536-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2268	536	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	536	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 536	1728	rundll32.exe	83
PID 1728 wrote to memory of 536	1728	rundll32.exe	83
PID 1728 wrote to memory of 536	1728	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f8a335a88e02783972c7b79c5440920N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\4f8a335a88e02783972c7b79c5440920N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:536
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 536 -s 712
    3⤵
    - Program crash
    PID:2268

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 536 -ip 536
1⤵
PID:2120

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/536-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/536-1-0x0000000010000000-0x0000000010030000-memory.dmp