a3d33157cfd51a4192a40c9b3dc5d2f5a77f68b9d472f85af2bff586940232e0

Analysis

max time kernel
94s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 23:31

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General

Target

a3d33157cfd51a4192a40c9b3dc5d2f5a77f68b9d472f85af2bff586940232e0.dll
Size

76KB
MD5

ba2957f9395a80ee045cddaff72630dd
SHA1

86119e3e04002bd55160a9fb3651ca0f7ca9fed2
SHA256

a3d33157cfd51a4192a40c9b3dc5d2f5a77f68b9d472f85af2bff586940232e0
SHA512

0c501cf965d4ee72c0696963243d6dfbb6db69e2a17270e965241d9325d60b69b781ce86135e7d45c327528806d48bc51b259f90c72837f92e4d48ebc52f5a1f
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZMlPV:c8y93KQjy7G55riF1cMo03SlPV

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

Processes:

resource	yara_rule
behavioral2/memory/4436-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4436-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

Processes:

WerFault.exe

pid	pid_target	Process	procid_target
2256	4436	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

Processes:

rundll32.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

rundll32.exe

description	pid	Process
Token: SeDebugPrivilege	4436	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

rundll32.exe

description	pid	Process	procid_target
PID 5036 wrote to memory of 4436	5036	rundll32.exe	83
PID 5036 wrote to memory of 4436	5036	rundll32.exe	83
PID 5036 wrote to memory of 4436	5036	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3d33157cfd51a4192a40c9b3dc5d2f5a77f68b9d472f85af2bff586940232e0.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5036
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a3d33157cfd51a4192a40c9b3dc5d2f5a77f68b9d472f85af2bff586940232e0.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4436
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4436 -s 696
    3⤵
    - Program crash
    PID:2256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4436 -ip 4436
1⤵
PID:4456

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/4436-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download
memory/4436-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

Download