e571d4e6e15396b945d4917d68ee5b972ad0141acdf0df90fee998548420f18c

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
19-12-2024 09:30

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General

Target

e571d4e6e15396b945d4917d68ee5b972ad0141acdf0df90fee998548420f18c.dll
Size

80KB
MD5

a837b957630734f1ecbebe659ec53b97
SHA1

17c882616bee7ec38eaf76919b3d890c62ba3f7c
SHA256

e571d4e6e15396b945d4917d68ee5b972ad0141acdf0df90fee998548420f18c
SHA512

bf5feec3911c0145c8cc23487ceba4d5bfcf82b73fd28eb7a0ba1878c414c59a70e3d4213693fe2f901db5e74e23a6a1ccaec782b09912d4f83f80259d525fdb
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEBaK:5dbwovEVyqgoZmZXWfIdQdRaefPAaK

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
1436	arp.exe
4044	arp.exe
3152	arp.exe
888	arp.exe
4568	arp.exe
2756	arp.exe
556	arp.exe
3572	arp.exe
1412	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4744-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4744-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4472	4744	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4744	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 4276 wrote to memory of 4744	4276	rundll32.exe	82
PID 4276 wrote to memory of 4744	4276	rundll32.exe	82
PID 4276 wrote to memory of 4744	4276	rundll32.exe	82
PID 4744 wrote to memory of 4568	4744	rundll32.exe	83
PID 4744 wrote to memory of 4568	4744	rundll32.exe	83
PID 4744 wrote to memory of 4568	4744	rundll32.exe	83
PID 4744 wrote to memory of 2756	4744	rundll32.exe	87
PID 4744 wrote to memory of 2756	4744	rundll32.exe	87
PID 4744 wrote to memory of 2756	4744	rundll32.exe	87
PID 4744 wrote to memory of 888	4744	rundll32.exe	88
PID 4744 wrote to memory of 888	4744	rundll32.exe	88
PID 4744 wrote to memory of 888	4744	rundll32.exe	88
PID 4744 wrote to memory of 1436	4744	rundll32.exe	89
PID 4744 wrote to memory of 1436	4744	rundll32.exe	89
PID 4744 wrote to memory of 1436	4744	rundll32.exe	89
PID 4744 wrote to memory of 3572	4744	rundll32.exe	90
PID 4744 wrote to memory of 3572	4744	rundll32.exe	90
PID 4744 wrote to memory of 3572	4744	rundll32.exe	90
PID 4744 wrote to memory of 556	4744	rundll32.exe	91
PID 4744 wrote to memory of 556	4744	rundll32.exe	91
PID 4744 wrote to memory of 556	4744	rundll32.exe	91
PID 4744 wrote to memory of 1412	4744	rundll32.exe	92
PID 4744 wrote to memory of 1412	4744	rundll32.exe	92
PID 4744 wrote to memory of 1412	4744	rundll32.exe	92
PID 4744 wrote to memory of 3152	4744	rundll32.exe	93
PID 4744 wrote to memory of 3152	4744	rundll32.exe	93
PID 4744 wrote to memory of 3152	4744	rundll32.exe	93
PID 4744 wrote to memory of 4044	4744	rundll32.exe	94
PID 4744 wrote to memory of 4044	4744	rundll32.exe	94
PID 4744 wrote to memory of 4044	4744	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\e571d4e6e15396b945d4917d68ee5b972ad0141acdf0df90fee998548420f18c.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:4276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\e571d4e6e15396b945d4917d68ee5b972ad0141acdf0df90fee998548420f18c.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4744
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4568
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 56-47-33-d2-c8-e9
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2756
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 f2-93-96-59-98-77
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:888
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.180 28-b3-21-ca-ac-84
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1436
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 02-4d-2e-4a-e0-7b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3572
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 cb-1d-fa-0a-d4-5c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:556
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 34-c6-42-9a-a1-b1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1412
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 ef-19-9c-ed-07-a7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3152
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 43-bc-79-36-f3-b7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4044
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4744 -s 712
    3⤵
    - Program crash
    PID:4472

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4744 -ip 4744
1⤵
PID:1980

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/4744-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4744-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download