ca90b71a1cc73bedcdcfd4349a16c0b02248053ceb568069c6ef1891d8691f0d

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-01-2025 23:28

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General

Target

ca90b71a1cc73bedcdcfd4349a16c0b02248053ceb568069c6ef1891d8691f0d.dll
Size

76KB
MD5

a7edd0c5c2d59bd60a62813a21e433a2
SHA1

e6a29cc1ff048e8c30f6548886f69c2d09a242a2
SHA256

ca90b71a1cc73bedcdcfd4349a16c0b02248053ceb568069c6ef1891d8691f0d
SHA512

db22f5f191cb0578d7878741b08f50040cf49f770b18972e23696d4a2aef0ac7196f7428c70568bdfa4c9453dd78ab29acd559894353891846764e3affe9bdd2
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7Zj//73Kd:c8y93KQjy7G55riF1cMo03l3Dg

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/4284-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/4284-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
860	4284	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	4284	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4104 wrote to memory of 4284	4104	rundll32.exe	83
PID 4104 wrote to memory of 4284	4104	rundll32.exe	83
PID 4104 wrote to memory of 4284	4104	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\ca90b71a1cc73bedcdcfd4349a16c0b02248053ceb568069c6ef1891d8691f0d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4104
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\ca90b71a1cc73bedcdcfd4349a16c0b02248053ceb568069c6ef1891d8691f0d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4284
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4284 -s 708
    3⤵
    - Program crash
    PID:860

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4284 -ip 4284
1⤵
PID:1568

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/4284-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/4284-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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