491a068370c8688c7bdca9ce91ee0b7f84f91815fe4db8c18175b6b88e8e9474

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
25/12/2024, 15:19

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General

Target

491a068370c8688c7bdca9ce91ee0b7f84f91815fe4db8c18175b6b88e8e9474N.dll
Size

80KB
MD5

c657dc47dfddd87cd160ab21088f0840
SHA1

934bd5cdff74c93e2d022cabbf7c7340478b8149
SHA256

491a068370c8688c7bdca9ce91ee0b7f84f91815fe4db8c18175b6b88e8e9474
SHA512

a6931a3b6f4b25796b6d94312ab68f2e0c83696fa071de2f101df06a6b1cba0fb7b734e9bd413910b2e6242d6ee85e50e807227c1d67a19be698ed73babcb844
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEANHOjl:5dbwovEVyqgoZmZXWfIdQdRaefPDHOjl

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
3340	arp.exe
1844	arp.exe
2024	arp.exe
2588	arp.exe
1052	arp.exe
1668	arp.exe
3168	arp.exe
3480	arp.exe
2764	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3972-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3972-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2700	3972	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3972	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2536 wrote to memory of 3972	2536	rundll32.exe	82
PID 2536 wrote to memory of 3972	2536	rundll32.exe	82
PID 2536 wrote to memory of 3972	2536	rundll32.exe	82
PID 3972 wrote to memory of 2764	3972	rundll32.exe	84
PID 3972 wrote to memory of 2764	3972	rundll32.exe	84
PID 3972 wrote to memory of 2764	3972	rundll32.exe	84
PID 3972 wrote to memory of 2588	3972	rundll32.exe	87
PID 3972 wrote to memory of 2588	3972	rundll32.exe	87
PID 3972 wrote to memory of 2588	3972	rundll32.exe	87
PID 3972 wrote to memory of 2024	3972	rundll32.exe	88
PID 3972 wrote to memory of 2024	3972	rundll32.exe	88
PID 3972 wrote to memory of 2024	3972	rundll32.exe	88
PID 3972 wrote to memory of 3340	3972	rundll32.exe	89
PID 3972 wrote to memory of 3340	3972	rundll32.exe	89
PID 3972 wrote to memory of 3340	3972	rundll32.exe	89
PID 3972 wrote to memory of 1844	3972	rundll32.exe	90
PID 3972 wrote to memory of 1844	3972	rundll32.exe	90
PID 3972 wrote to memory of 1844	3972	rundll32.exe	90
PID 3972 wrote to memory of 1052	3972	rundll32.exe	91
PID 3972 wrote to memory of 1052	3972	rundll32.exe	91
PID 3972 wrote to memory of 1052	3972	rundll32.exe	91
PID 3972 wrote to memory of 1668	3972	rundll32.exe	92
PID 3972 wrote to memory of 1668	3972	rundll32.exe	92
PID 3972 wrote to memory of 1668	3972	rundll32.exe	92
PID 3972 wrote to memory of 3168	3972	rundll32.exe	93
PID 3972 wrote to memory of 3168	3972	rundll32.exe	93
PID 3972 wrote to memory of 3168	3972	rundll32.exe	93
PID 3972 wrote to memory of 3480	3972	rundll32.exe	94
PID 3972 wrote to memory of 3480	3972	rundll32.exe	94
PID 3972 wrote to memory of 3480	3972	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\491a068370c8688c7bdca9ce91ee0b7f84f91815fe4db8c18175b6b88e8e9474N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2536
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\491a068370c8688c7bdca9ce91ee0b7f84f91815fe4db8c18175b6b88e8e9474N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3972
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2764
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 05-4c-0c-f0-61-94
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2588
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 19-de-08-18-e0-e2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2024
- - C:\Windows\SysWOW64\arp.exe
    arp -s 136.243.69.123 5e-f4-a8-1a-f4-26
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3340
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 24-f1-ba-b5-eb-a5
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1844
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 3c-81-2a-90-74-f6
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1052
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 e1-18-a1-81-5e-3b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1668
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 ff-0e-04-3d-e1-e8
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3168
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 e8-30-17-9a-00-70
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3480
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3972 -s 708
    3⤵
    - Program crash
    PID:2700

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3972 -ip 3972
1⤵
PID:3032

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/3972-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3972-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download