17eada621b1a66b56da3f1daf0bc0c092e5f69c17b11d56572bbeca9b5d4370b

Analysis

max time kernel
102s
max time network
102s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
26/08/2024, 15:14

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General

Target
b76dea7847cbfb8fe3b197642be027b0N.dll
Size 76KB
Sample240826-smflya1hpp
SHA256 17eada621b1a66b56da3f1daf0bc0c092e5f69c17b11d56572bbeca9b5d4370b
MD5 b76dea7847cbfb8fe3b197642be027b0
SHA1 226e104b7de6ffedaff1e0b9c911c41dadf0a59d
SHA512 2f77baf94fc2eae01a7722713b469c8ca0a708c9e8706d34532d8cc87bc2a4e083d7cb0382257ba4dc718d20aebac18a752977dcc80452e801e4a431a6e97ae2
SSDEEP 1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZPi2esuPL:c8y93KQjy7G55riF1cMo03lML
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/4716-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4716-2-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
5076	4716	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	4716	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4996 wrote to memory of 4716	4996	rundll32.exe	83
PID 4996 wrote to memory of 4716	4996	rundll32.exe	83
PID 4996 wrote to memory of 4716	4996	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b76dea7847cbfb8fe3b197642be027b0N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4996
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b76dea7847cbfb8fe3b197642be027b0N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4716
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4716 -s 716
    3⤵
    - Program crash
    PID:5076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4716 -ip 4716
1⤵
PID:3204

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/4716-0-0x0000000010000000-0x0000000010030000-memory.dmp

Download

memory/4716-2-0x0000000010000000-0x0000000010030000-memory.dmp