cbcb71d23e960837a08125ed4ce58103603eb27d0e833177d8020653eef0b1c5

Analysis

max time kernel
148s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-01-2025 05:52

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General

Target

cbcb71d23e960837a08125ed4ce58103603eb27d0e833177d8020653eef0b1c5.dll
Size

76KB
MD5

21cfe76cbfe5a9aae85d24a7e172d3a2
SHA1

7fb3a8ef257d33dfd77aa6139a73248e2bd9f357
SHA256

cbcb71d23e960837a08125ed4ce58103603eb27d0e833177d8020653eef0b1c5
SHA512

bd33df011c73acbc2aa49755d4041c9b616836ae86b90ee309e41657a21804078fc546beb36e8ad0c3e024e0080deee01faa91c67e83f40b61ee0af44cdd4062
SSDEEP

1536:YjV8y93KQpFQmPLRk7G50zy/riF12jvRyo0hQk7ZkLmZB/v:c8y93KQjy7G55riF1cMo03qS/H

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/2356-0-0x0000000010000000-0x0000000010030000-memory.dmp	upx
behavioral2/memory/2356-1-0x0000000010000000-0x0000000010030000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3636	2356	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	2356	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1364 wrote to memory of 2356	1364	rundll32.exe	83
PID 1364 wrote to memory of 2356	1364	rundll32.exe	83
PID 1364 wrote to memory of 2356	1364	rundll32.exe	83

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\cbcb71d23e960837a08125ed4ce58103603eb27d0e833177d8020653eef0b1c5.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\cbcb71d23e960837a08125ed4ce58103603eb27d0e833177d8020653eef0b1c5.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:2356
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2356 -s 704
    3⤵
    - Program crash
    PID:3636

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 2356 -ip 2356
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/2356-0-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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memory/2356-1-0x0000000010000000-0x0000000010030000-memory.dmp

Filesize
192KB

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