57b0d24f94f2e751ba089b9f7947b00a6950615f9e416ca2eb406c44785ba318

Analysis

max time kernel
99s
max time network
123s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
22/08/2024, 03:19

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General

Target
399f6a495088f16795e202463f2a8480N.dll
Size 76KB
Sample240822-dvf54swcmb
SHA256 57b0d24f94f2e751ba089b9f7947b00a6950615f9e416ca2eb406c44785ba318
MD5 399f6a495088f16795e202463f2a8480
SHA1 68b2ce808a750267f3f15599107735673d47df1e
SHA512 702ad7cf69b59b3865c52e74f1d2ae614cf392aa2338526c213d366de9d1bc454af1ed3687e0a7785c7350cbfda17c6ae0f853da78d813d58289151665ba035b
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zc5ynT2LY4rG:c8y93KQjy7G55riF1cMo03vScN
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/2916-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2916-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
620	2916	WerFault.exe	86

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	2916	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1940 wrote to memory of 2916	1940	rundll32.exe	86
PID 1940 wrote to memory of 2916	1940	rundll32.exe	86
PID 1940 wrote to memory of 2916	1940	rundll32.exe	86

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\399f6a495088f16795e202463f2a8480N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1940
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\399f6a495088f16795e202463f2a8480N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 708
    3⤵
    - Program crash
    PID:620

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 2916 -ip 2916
1⤵
PID:4492

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

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Downloads

memory/2916-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/2916-1-0x0000000010000000-0x0000000010030000-memory.dmp