1d8daab64de98d4b1106d0276ab1090379720191e8a56cd9f179490e9cc6948e

Analysis

max time kernel
120s
max time network
121s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 23:36

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General

Target
43f3d7ad323233954baf0f8aa8fd52f0N.dll
Size 76KB
Sample240820-3llfxashjk
SHA256 1d8daab64de98d4b1106d0276ab1090379720191e8a56cd9f179490e9cc6948e
MD5 43f3d7ad323233954baf0f8aa8fd52f0
SHA1 60a903f46aa2724c6414b02d7b7d068af69122da
SHA512 beed7c3543105277d21ff302822826a9515d58037c5ccfc0c585645a61f485c3f37a9f2ddd20dccd240f37ecd36cb530e1615bb5260a580a233164d732e0acb4
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZnKm1:c8y93KQjy7G55riF1cMo03ZKq
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/1140-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/1140-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4504	1140	WerFault.exe	84

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	1140	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4228 wrote to memory of 1140	4228	rundll32.exe	84
PID 4228 wrote to memory of 1140	4228	rundll32.exe	84
PID 4228 wrote to memory of 1140	4228	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\43f3d7ad323233954baf0f8aa8fd52f0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4228
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\43f3d7ad323233954baf0f8aa8fd52f0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1140
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1140 -s 720
    3⤵
    - Program crash
    PID:4504

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1140 -ip 1140
1⤵
PID:2520

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/1140-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/1140-2-0x0000000010000000-0x0000000010030000-memory.dmp