beb9c4d83530e4179b6605b30a6170f43bae57ea46c40ceb30168c0a1cf379a4

Analysis

max time kernel
94s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-12-2024 06:42

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General

Target

beb9c4d83530e4179b6605b30a6170f43bae57ea46c40ceb30168c0a1cf379a4.dll
Size

80KB
MD5

bf46bab1022c64584244ca269610594e
SHA1

b1d77fc357822d5b48c1298a4abe069ac5faa3f6
SHA256

beb9c4d83530e4179b6605b30a6170f43bae57ea46c40ceb30168c0a1cf379a4
SHA512

ac991930446ee369f91f886508ed950ca941d6a1eb4a256a7dfa79ca90000aae8453c4c3e8baa83ae9d2f550ce360b79c03cb054c7745f537302cf299a1da9ae
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEUHk9aJn:5dbwovEVyqgoZmZXWfIdQdRaefPz

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

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
4896	arp.exe
4740	arp.exe
3300	arp.exe
4620	arp.exe
2720	arp.exe
4744	arp.exe
2808	arp.exe
4560	arp.exe
2120	arp.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/3964-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3964-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3896	3964	WerFault.exe	83

System Location Discovery: System Language Discovery 1 TTPs 10 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
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	arp.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3964	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1728 wrote to memory of 3964	1728	rundll32.exe	83
PID 1728 wrote to memory of 3964	1728	rundll32.exe	83
PID 1728 wrote to memory of 3964	1728	rundll32.exe	83
PID 3964 wrote to memory of 4740	3964	rundll32.exe	85
PID 3964 wrote to memory of 4740	3964	rundll32.exe	85
PID 3964 wrote to memory of 4740	3964	rundll32.exe	85
PID 3964 wrote to memory of 4744	3964	rundll32.exe	88
PID 3964 wrote to memory of 4744	3964	rundll32.exe	88
PID 3964 wrote to memory of 4744	3964	rundll32.exe	88
PID 3964 wrote to memory of 4896	3964	rundll32.exe	89
PID 3964 wrote to memory of 4896	3964	rundll32.exe	89
PID 3964 wrote to memory of 4896	3964	rundll32.exe	89
PID 3964 wrote to memory of 4620	3964	rundll32.exe	90
PID 3964 wrote to memory of 4620	3964	rundll32.exe	90
PID 3964 wrote to memory of 4620	3964	rundll32.exe	90
PID 3964 wrote to memory of 2720	3964	rundll32.exe	91
PID 3964 wrote to memory of 2720	3964	rundll32.exe	91
PID 3964 wrote to memory of 2720	3964	rundll32.exe	91
PID 3964 wrote to memory of 3300	3964	rundll32.exe	92
PID 3964 wrote to memory of 3300	3964	rundll32.exe	92
PID 3964 wrote to memory of 3300	3964	rundll32.exe	92
PID 3964 wrote to memory of 2120	3964	rundll32.exe	93
PID 3964 wrote to memory of 2120	3964	rundll32.exe	93
PID 3964 wrote to memory of 2120	3964	rundll32.exe	93
PID 3964 wrote to memory of 4560	3964	rundll32.exe	94
PID 3964 wrote to memory of 4560	3964	rundll32.exe	94
PID 3964 wrote to memory of 4560	3964	rundll32.exe	94
PID 3964 wrote to memory of 2808	3964	rundll32.exe	95
PID 3964 wrote to memory of 2808	3964	rundll32.exe	95
PID 3964 wrote to memory of 2808	3964	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\beb9c4d83530e4179b6605b30a6170f43bae57ea46c40ceb30168c0a1cf379a4.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1728
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\beb9c4d83530e4179b6605b30a6170f43bae57ea46c40ceb30168c0a1cf379a4.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3964
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4740
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 96-c0-b0-2a-aa-3b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4744
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 c7-1c-31-46-69-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.184 fb-e7-84-91-9c-31
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4620
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 ae-b4-1d-3c-88-37
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c2-d0-cb-08-5b-2c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3300
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 e0-9e-74-8b-ed-1d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2120
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 c0-5a-f7-0d-4b-85
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4560
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 b9-0c-0b-13-08-10
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2808
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3964 -s 704
    3⤵
    - Program crash
    PID:3896

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 3964 -ip 3964
1⤵
PID:2608

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

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3964-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3964-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download