e796906a967e890a2779e3917c39bd71a80838cc77877bee635db881d960b133

Analysis

max time kernel
96s
max time network
97s
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, 14:33

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General

Target
aff36c045281701a9786370e68e61d40N.dll
Size 76KB
Sample240817-rw4vfstdjm
SHA256 e796906a967e890a2779e3917c39bd71a80838cc77877bee635db881d960b133
MD5 aff36c045281701a9786370e68e61d40
SHA1 1f32743774bffde6b4ac4b7eebaa4ab89b9536d1
SHA512 ec6ae9ecab5b96df283f794fe3ee36beb509366e3d76dac6de49542eda27c4b79eafc42f29eb3ff9027106b48f872417811e5173faec1b0219001e8a847b8da8
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Z/A/bqhV:c8y93KQjy7G55riF1cMo03awV
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/3716-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/3716-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4988	3716	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	3716	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3844 wrote to memory of 3716	3844	rundll32.exe	84
PID 3844 wrote to memory of 3716	3844	rundll32.exe	84
PID 3844 wrote to memory of 3716	3844	rundll32.exe	84

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\aff36c045281701a9786370e68e61d40N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3844
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\aff36c045281701a9786370e68e61d40N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:3716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3716 -s 716
    3⤵
    - Program crash
    PID:4988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3716 -ip 3716
1⤵
PID:4804

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/3716-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/3716-2-0x0000000010000000-0x0000000010030000-memory.dmp