52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc

Analysis

max time kernel
91s
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
26-12-2024 08:49

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General

Target

52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.dll
Size

80KB
MD5

1f69814d7e23d502f4dcb6977e6f7db6
SHA1

b10acd416af35cc77dabd936bef3427833130d7d
SHA256

52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc
SHA512

e50c857c17a9d175cdf84e1d601c5b2990c5d5e869945573aaff31858647514406673207850db07d733107b0e1e6d3970a432e8c591eaa050dafded7ea7ada86
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEJl+qoq:5dbwovEVyqgoZmZXWfIdQdRaefPoca

Score

6^/10

discovery upx

Malware Config

Signatures

Network Service Discovery 1 TTPs 9 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
3936	arp.exe
4040	arp.exe
3408	arp.exe
4056	arp.exe
4872	arp.exe
4404	arp.exe
4080	arp.exe
3928	arp.exe
1616	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4044-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4044-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1188	4044	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	4044	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 5032 wrote to memory of 4044	5032	rundll32.exe	83
PID 5032 wrote to memory of 4044	5032	rundll32.exe	83
PID 5032 wrote to memory of 4044	5032	rundll32.exe	83
PID 4044 wrote to memory of 4872	4044	rundll32.exe	85
PID 4044 wrote to memory of 4872	4044	rundll32.exe	85
PID 4044 wrote to memory of 4872	4044	rundll32.exe	85
PID 4044 wrote to memory of 4404	4044	rundll32.exe	88
PID 4044 wrote to memory of 4404	4044	rundll32.exe	88
PID 4044 wrote to memory of 4404	4044	rundll32.exe	88
PID 4044 wrote to memory of 4056	4044	rundll32.exe	89
PID 4044 wrote to memory of 4056	4044	rundll32.exe	89
PID 4044 wrote to memory of 4056	4044	rundll32.exe	89
PID 4044 wrote to memory of 3408	4044	rundll32.exe	90
PID 4044 wrote to memory of 3408	4044	rundll32.exe	90
PID 4044 wrote to memory of 3408	4044	rundll32.exe	90
PID 4044 wrote to memory of 1616	4044	rundll32.exe	91
PID 4044 wrote to memory of 1616	4044	rundll32.exe	91
PID 4044 wrote to memory of 1616	4044	rundll32.exe	91
PID 4044 wrote to memory of 4040	4044	rundll32.exe	92
PID 4044 wrote to memory of 4040	4044	rundll32.exe	92
PID 4044 wrote to memory of 4040	4044	rundll32.exe	92
PID 4044 wrote to memory of 3928	4044	rundll32.exe	93
PID 4044 wrote to memory of 3928	4044	rundll32.exe	93
PID 4044 wrote to memory of 3928	4044	rundll32.exe	93
PID 4044 wrote to memory of 3936	4044	rundll32.exe	94
PID 4044 wrote to memory of 3936	4044	rundll32.exe	94
PID 4044 wrote to memory of 3936	4044	rundll32.exe	94
PID 4044 wrote to memory of 4080	4044	rundll32.exe	95
PID 4044 wrote to memory of 4080	4044	rundll32.exe	95
PID 4044 wrote to memory of 4080	4044	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\52020736bbc3849801a4c359e70d8db756437f9a708be11555d1c760c9ae51dc.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4044
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 1f-bf-1c-2b-7c-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4404
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 e0-3f-84-b8-1d-15
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4056
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.185 98-7a-52-5c-87-f2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3408
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 fe-a3-6f-ec-84-6f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1616
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 9d-3f-55-76-fc-7d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4040
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 67-24-94-a1-00-1d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3928
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 6a-b7-3d-56-b8-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3936
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 1e-a9-cb-4a-10-dc
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4080
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4044 -s 704
    3⤵
    - Program crash
    PID:1188

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4044 -ip 4044
1⤵
PID:1476

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

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/4044-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4044-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download