5afb9e2b6ed3cc72eb226f965c6ac940ee5f7acc4f61c1d28a0c13713eec4020

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
22-12-2024 14:28

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General

Target

5afb9e2b6ed3cc72eb226f965c6ac940ee5f7acc4f61c1d28a0c13713eec4020N.dll
Size

80KB
MD5

e34a781892212d8a2e31bff16da1fd00
SHA1

23126a7dd885ad50a4ed2db567782daf8b490de8
SHA256

5afb9e2b6ed3cc72eb226f965c6ac940ee5f7acc4f61c1d28a0c13713eec4020
SHA512

c9570b891322951feaff596256f867b1b6204f0e7f8cbc2c3f35dd4e4c65ba7e5f53220d685375f6583165cf45119c7bc08afd7eb880b879f3731526d95172fd
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEOf:5dbwovEVyqgoZmZXWfIdQdRaefPT

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
2168	arp.exe
3000	arp.exe
4964	arp.exe
2112	arp.exe
3080	arp.exe
4424	arp.exe
4872	arp.exe
4896	arp.exe
2888	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1340-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/1340-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3272	1340	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	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	1340	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 5004 wrote to memory of 1340	5004	rundll32.exe	83
PID 5004 wrote to memory of 1340	5004	rundll32.exe	83
PID 5004 wrote to memory of 1340	5004	rundll32.exe	83
PID 1340 wrote to memory of 2168	1340	rundll32.exe	85
PID 1340 wrote to memory of 2168	1340	rundll32.exe	85
PID 1340 wrote to memory of 2168	1340	rundll32.exe	85
PID 1340 wrote to memory of 2112	1340	rundll32.exe	88
PID 1340 wrote to memory of 2112	1340	rundll32.exe	88
PID 1340 wrote to memory of 2112	1340	rundll32.exe	88
PID 1340 wrote to memory of 2888	1340	rundll32.exe	89
PID 1340 wrote to memory of 2888	1340	rundll32.exe	89
PID 1340 wrote to memory of 2888	1340	rundll32.exe	89
PID 1340 wrote to memory of 4896	1340	rundll32.exe	90
PID 1340 wrote to memory of 4896	1340	rundll32.exe	90
PID 1340 wrote to memory of 4896	1340	rundll32.exe	90
PID 1340 wrote to memory of 4964	1340	rundll32.exe	91
PID 1340 wrote to memory of 4964	1340	rundll32.exe	91
PID 1340 wrote to memory of 4964	1340	rundll32.exe	91
PID 1340 wrote to memory of 4872	1340	rundll32.exe	92
PID 1340 wrote to memory of 4872	1340	rundll32.exe	92
PID 1340 wrote to memory of 4872	1340	rundll32.exe	92
PID 1340 wrote to memory of 4424	1340	rundll32.exe	93
PID 1340 wrote to memory of 4424	1340	rundll32.exe	93
PID 1340 wrote to memory of 4424	1340	rundll32.exe	93
PID 1340 wrote to memory of 3000	1340	rundll32.exe	94
PID 1340 wrote to memory of 3000	1340	rundll32.exe	94
PID 1340 wrote to memory of 3000	1340	rundll32.exe	94
PID 1340 wrote to memory of 3080	1340	rundll32.exe	95
PID 1340 wrote to memory of 3080	1340	rundll32.exe	95
PID 1340 wrote to memory of 3080	1340	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\5afb9e2b6ed3cc72eb226f965c6ac940ee5f7acc4f61c1d28a0c13713eec4020N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:5004
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\5afb9e2b6ed3cc72eb226f965c6ac940ee5f7acc4f61c1d28a0c13713eec4020N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:1340
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2168
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 2c-69-91-15-f3-92
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2112
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 70-f3-c6-de-aa-70
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2888
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.208 cc-d5-85-98-08-e0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 2c-82-d9-82-c2-9c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4964
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 18-fb-23-5c-6c-2b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 13-33-d0-a6-dd-46
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4424
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 68-a1-fa-ec-43-4c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3000
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 89-f2-59-4b-75-55
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3080
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1340 -s 704
    3⤵
    - Program crash
    PID:3272

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1340 -ip 1340
1⤵
PID:3564

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/1340-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/1340-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download