37483e30dbcb9ab39491b762500928d5854fc33f093709d72ed9a835b22aba20

Analysis

max time kernel
93s
max time network
94s
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 03:28

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General

Target

37483e30dbcb9ab39491b762500928d5854fc33f093709d72ed9a835b22aba20N.dll
Size

80KB
MD5

a05d4baf335b569b3acd0bb1122ec1e0
SHA1

4843a6ab5c0b6934dee9b89aaeec13edfa252353
SHA256

37483e30dbcb9ab39491b762500928d5854fc33f093709d72ed9a835b22aba20
SHA512

679f324ca1fbe37660968301fda3bf34ba223c50f818bcfb697b4ff931232142994001552e30b2624f4ad92fee36b77e1d942136fd2b5db8c475eb2d43f22327
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPE46e:5dbwovEVyqgoZmZXWfIdQdRaefP1h

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
2408	arp.exe
1164	arp.exe
4880	arp.exe
1176	arp.exe
5072	arp.exe
3604	arp.exe
4944	arp.exe
3452	arp.exe
2872	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3484-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3484-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2616	3484	WerFault.exe	82

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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3484	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 5076 wrote to memory of 3484	5076	rundll32.exe	82
PID 5076 wrote to memory of 3484	5076	rundll32.exe	82
PID 5076 wrote to memory of 3484	5076	rundll32.exe	82
PID 3484 wrote to memory of 4880	3484	rundll32.exe	83
PID 3484 wrote to memory of 4880	3484	rundll32.exe	83
PID 3484 wrote to memory of 4880	3484	rundll32.exe	83
PID 3484 wrote to memory of 1176	3484	rundll32.exe	87
PID 3484 wrote to memory of 1176	3484	rundll32.exe	87
PID 3484 wrote to memory of 1176	3484	rundll32.exe	87
PID 3484 wrote to memory of 1164	3484	rundll32.exe	88
PID 3484 wrote to memory of 1164	3484	rundll32.exe	88
PID 3484 wrote to memory of 1164	3484	rundll32.exe	88
PID 3484 wrote to memory of 2872	3484	rundll32.exe	89
PID 3484 wrote to memory of 2872	3484	rundll32.exe	89
PID 3484 wrote to memory of 2872	3484	rundll32.exe	89
PID 3484 wrote to memory of 3452	3484	rundll32.exe	90
PID 3484 wrote to memory of 3452	3484	rundll32.exe	90
PID 3484 wrote to memory of 3452	3484	rundll32.exe	90
PID 3484 wrote to memory of 2408	3484	rundll32.exe	91
PID 3484 wrote to memory of 2408	3484	rundll32.exe	91
PID 3484 wrote to memory of 2408	3484	rundll32.exe	91
PID 3484 wrote to memory of 3604	3484	rundll32.exe	92
PID 3484 wrote to memory of 3604	3484	rundll32.exe	92
PID 3484 wrote to memory of 3604	3484	rundll32.exe	92
PID 3484 wrote to memory of 5072	3484	rundll32.exe	93
PID 3484 wrote to memory of 5072	3484	rundll32.exe	93
PID 3484 wrote to memory of 5072	3484	rundll32.exe	93
PID 3484 wrote to memory of 4944	3484	rundll32.exe	94
PID 3484 wrote to memory of 4944	3484	rundll32.exe	94
PID 3484 wrote to memory of 4944	3484	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\37483e30dbcb9ab39491b762500928d5854fc33f093709d72ed9a835b22aba20N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5076
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\37483e30dbcb9ab39491b762500928d5854fc33f093709d72ed9a835b22aba20N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3484
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4880
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 7c-97-2c-5d-e7-9d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1176
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 41-89-b9-36-8a-4d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1164
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.69.123 9d-fb-a6-fa-6a-10
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 bf-23-59-d0-60-c3
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3452
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 47-01-50-9d-8d-6e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2408
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 9a-c1-26-84-ae-57
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3604
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 2a-27-4e-76-12-84
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:5072
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 02-36-fe-6e-0f-67
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4944
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3484 -s 716
    3⤵
    - Program crash
    PID:2616

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3484 -ip 3484
1⤵
PID:3152

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/3484-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3484-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download