28ff07f676b7e287651544c4c17331fcefe2062552645d99c09be9cb302d005d

Analysis

max time kernel
94s
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
17-12-2024 06:31

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General

Target

28ff07f676b7e287651544c4c17331fcefe2062552645d99c09be9cb302d005dN.dll
Size

80KB
MD5

c60eaa6944f9e019616085495411a120
SHA1

51fb52f05415f0d16858e474aba27b9aa1446fcb
SHA256

28ff07f676b7e287651544c4c17331fcefe2062552645d99c09be9cb302d005d
SHA512

b5af3273e4531dff775297cec14f0408b7f564ba809d8804e646cc666bb2ce4a04d3e0e0a4344c77368915052bc107b48c69a211b9ee950c083257b17ad61b99
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEcGL0FLqUI7HD:5dbwovEVyqgoZmZXWfIdQdRaefPDEZHD

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
1896	arp.exe
4944	arp.exe
2336	arp.exe
4356	arp.exe
5076	arp.exe
4068	arp.exe
2932	arp.exe
1548	arp.exe
4248	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/3556-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/3556-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4596	3556	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	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
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	3556	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3156 wrote to memory of 3556	3156	rundll32.exe	82
PID 3156 wrote to memory of 3556	3156	rundll32.exe	82
PID 3156 wrote to memory of 3556	3156	rundll32.exe	82
PID 3556 wrote to memory of 4944	3556	rundll32.exe	84
PID 3556 wrote to memory of 4944	3556	rundll32.exe	84
PID 3556 wrote to memory of 4944	3556	rundll32.exe	84
PID 3556 wrote to memory of 4248	3556	rundll32.exe	87
PID 3556 wrote to memory of 4248	3556	rundll32.exe	87
PID 3556 wrote to memory of 4248	3556	rundll32.exe	87
PID 3556 wrote to memory of 1896	3556	rundll32.exe	88
PID 3556 wrote to memory of 1896	3556	rundll32.exe	88
PID 3556 wrote to memory of 1896	3556	rundll32.exe	88
PID 3556 wrote to memory of 4068	3556	rundll32.exe	89
PID 3556 wrote to memory of 4068	3556	rundll32.exe	89
PID 3556 wrote to memory of 4068	3556	rundll32.exe	89
PID 3556 wrote to memory of 5076	3556	rundll32.exe	90
PID 3556 wrote to memory of 5076	3556	rundll32.exe	90
PID 3556 wrote to memory of 5076	3556	rundll32.exe	90
PID 3556 wrote to memory of 1548	3556	rundll32.exe	91
PID 3556 wrote to memory of 1548	3556	rundll32.exe	91
PID 3556 wrote to memory of 1548	3556	rundll32.exe	91
PID 3556 wrote to memory of 4356	3556	rundll32.exe	92
PID 3556 wrote to memory of 4356	3556	rundll32.exe	92
PID 3556 wrote to memory of 4356	3556	rundll32.exe	92
PID 3556 wrote to memory of 2336	3556	rundll32.exe	93
PID 3556 wrote to memory of 2336	3556	rundll32.exe	93
PID 3556 wrote to memory of 2336	3556	rundll32.exe	93
PID 3556 wrote to memory of 2932	3556	rundll32.exe	94
PID 3556 wrote to memory of 2932	3556	rundll32.exe	94
PID 3556 wrote to memory of 2932	3556	rundll32.exe	94

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\28ff07f676b7e287651544c4c17331fcefe2062552645d99c09be9cb302d005dN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3156
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\28ff07f676b7e287651544c4c17331fcefe2062552645d99c09be9cb302d005dN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3556
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4944
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 70-89-ae-ea-55-c2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4248
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 66-60-8e-2b-63-83
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1896
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.207 fd-ae-f1-08-33-95
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4068
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 e9-b5-ce-45-43-ab
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:5076
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 ea-36-3c-a3-2e-47
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1548
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 3a-25-01-d6-2b-15
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4356
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 2e-9e-cb-f8-c1-2a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2336
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 92-ef-a3-86-9c-92
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2932
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3556 -s 700
    3⤵
    - Program crash
    PID:4596

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 3556 -ip 3556
1⤵
PID:1784

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/3556-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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memory/3556-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download