67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6

Analysis

max time kernel
93s
max time network
95s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
22-12-2024 06:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll
Size

80KB
MD5

8927897f68bc90ebc2a340b0b020b070
SHA1

13fb4d1fd8e7a3fa121c2d81364ad33a001119c7
SHA256

67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6
SHA512

254564e22eb764b429f680fae2b5447de53cb9daee8b955df1bc200f655deb545f35d76e9b5b8058ee4356d7c91190fc3fd36b80aa7aa098bd3d5f603b98d404
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEN9fD:5dbwovEVyqgoZmZXWfIdQdRaefP4D

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
1408	arp.exe
1104	arp.exe
4304	arp.exe
4464	arp.exe
4872	arp.exe
3752	arp.exe
2948	arp.exe
3768	arp.exe
4744	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3976-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3976-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4104	3976	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	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	3976	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1600 wrote to memory of 3976	1600	rundll32.exe	83
PID 1600 wrote to memory of 3976	1600	rundll32.exe	83
PID 1600 wrote to memory of 3976	1600	rundll32.exe	83
PID 3976 wrote to memory of 1408	3976	rundll32.exe	85
PID 3976 wrote to memory of 1408	3976	rundll32.exe	85
PID 3976 wrote to memory of 1408	3976	rundll32.exe	85
PID 3976 wrote to memory of 4872	3976	rundll32.exe	88
PID 3976 wrote to memory of 4872	3976	rundll32.exe	88
PID 3976 wrote to memory of 4872	3976	rundll32.exe	88
PID 3976 wrote to memory of 4464	3976	rundll32.exe	89
PID 3976 wrote to memory of 4464	3976	rundll32.exe	89
PID 3976 wrote to memory of 4464	3976	rundll32.exe	89
PID 3976 wrote to memory of 4304	3976	rundll32.exe	90
PID 3976 wrote to memory of 4304	3976	rundll32.exe	90
PID 3976 wrote to memory of 4304	3976	rundll32.exe	90
PID 3976 wrote to memory of 4744	3976	rundll32.exe	91
PID 3976 wrote to memory of 4744	3976	rundll32.exe	91
PID 3976 wrote to memory of 4744	3976	rundll32.exe	91
PID 3976 wrote to memory of 3768	3976	rundll32.exe	92
PID 3976 wrote to memory of 3768	3976	rundll32.exe	92
PID 3976 wrote to memory of 3768	3976	rundll32.exe	92
PID 3976 wrote to memory of 2948	3976	rundll32.exe	93
PID 3976 wrote to memory of 2948	3976	rundll32.exe	93
PID 3976 wrote to memory of 2948	3976	rundll32.exe	93
PID 3976 wrote to memory of 3752	3976	rundll32.exe	94
PID 3976 wrote to memory of 3752	3976	rundll32.exe	94
PID 3976 wrote to memory of 3752	3976	rundll32.exe	94
PID 3976 wrote to memory of 1104	3976	rundll32.exe	95
PID 3976 wrote to memory of 1104	3976	rundll32.exe	95
PID 3976 wrote to memory of 1104	3976	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1600
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\67b71a440987b18b40c6e43a519633bb43756eaf46ff105a1591515ee8a0dda6N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3976
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1408
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 fb-dc-66-b3-8e-8b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 12-8f-2f-15-cf-8a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4464
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.182 6a-7d-e7-b5-22-93
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4304
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 f7-95-99-aa-cb-03
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4744
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 81-98-92-e4-cc-bf
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3768
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 51-b9-a9-ea-26-47
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2948
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 97-a0-bd-dc-ff-26
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3752
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a9-db-ba-f0-51-3e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1104
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3976 -s 728
    3⤵
    - Program crash
    PID:4104

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3976 -ip 3976
1⤵
PID:4556

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/3976-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/3976-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download