820de907a6340a51e8591764bb72bb6cd738934988ae77ea55f2035acaa4b244

Analysis

max time kernel
95s
max time network
141s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-12-2024 00:38

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General

Target

820de907a6340a51e8591764bb72bb6cd738934988ae77ea55f2035acaa4b244.dll
Size

76KB
MD5

81834d2bd9d217acb75ee7b13942f124
SHA1

b74559f4445f0ead198191e1c972edfad2baf58f
SHA256

820de907a6340a51e8591764bb72bb6cd738934988ae77ea55f2035acaa4b244
SHA512

e3106f5accbb3e9cc67049e5d15fd3fcfd3babf90a3045a15d6914217e2cbfaee30699aa55d4632c575146e6d99a95037d096022736b869dee8869b06bfc62d3
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZrhXXVzRb84w:c8y93KQjy7G55riF1cMo03JhXXVlb8n

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/4540-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4540-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3280	4540	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	4540	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4384 wrote to memory of 4540	4384	rundll32.exe	83
PID 4384 wrote to memory of 4540	4384	rundll32.exe	83
PID 4384 wrote to memory of 4540	4384	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\820de907a6340a51e8591764bb72bb6cd738934988ae77ea55f2035acaa4b244.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4384
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\820de907a6340a51e8591764bb72bb6cd738934988ae77ea55f2035acaa4b244.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4540 -s 700
    3⤵
    - Program crash
    PID:3280

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4540 -ip 4540
1⤵
PID:2764

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/4540-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4540-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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