a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90

Analysis

max time kernel
93s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-01-2025 02:44

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General

Target

a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.dll
Size

80KB
MD5

211ed6cf8da10c850d7de82e73d2cbe9
SHA1

f64db5cabda0a4bc471069022e729465f7c545b1
SHA256

a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90
SHA512

9e344a0bf2b8c2698c3c1cbafd72f4f54a21ba05b1f4e559a0c682b9f9e871ef2b2e5a0e80e6328b44230a9572e16af3c98380983eb8207929c46ce9a21ef64c
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEXG3T:5dbwovEVyqgoZmZXWfIdQdRaefPzD

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
1788	arp.exe
4236	arp.exe
3568	arp.exe
1572	arp.exe
3668	arp.exe
4956	arp.exe
4000	arp.exe
1280	arp.exe
3676	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/4776-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/4776-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3028	4776	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4776	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 3200 wrote to memory of 4776	3200	rundll32.exe	83
PID 3200 wrote to memory of 4776	3200	rundll32.exe	83
PID 3200 wrote to memory of 4776	3200	rundll32.exe	83
PID 4776 wrote to memory of 1280	4776	rundll32.exe	84
PID 4776 wrote to memory of 1280	4776	rundll32.exe	84
PID 4776 wrote to memory of 1280	4776	rundll32.exe	84
PID 4776 wrote to memory of 1788	4776	rundll32.exe	88
PID 4776 wrote to memory of 1788	4776	rundll32.exe	88
PID 4776 wrote to memory of 1788	4776	rundll32.exe	88
PID 4776 wrote to memory of 1572	4776	rundll32.exe	89
PID 4776 wrote to memory of 1572	4776	rundll32.exe	89
PID 4776 wrote to memory of 1572	4776	rundll32.exe	89
PID 4776 wrote to memory of 4956	4776	rundll32.exe	90
PID 4776 wrote to memory of 4956	4776	rundll32.exe	90
PID 4776 wrote to memory of 4956	4776	rundll32.exe	90
PID 4776 wrote to memory of 3668	4776	rundll32.exe	91
PID 4776 wrote to memory of 3668	4776	rundll32.exe	91
PID 4776 wrote to memory of 3668	4776	rundll32.exe	91
PID 4776 wrote to memory of 3676	4776	rundll32.exe	92
PID 4776 wrote to memory of 3676	4776	rundll32.exe	92
PID 4776 wrote to memory of 3676	4776	rundll32.exe	92
PID 4776 wrote to memory of 3568	4776	rundll32.exe	96
PID 4776 wrote to memory of 3568	4776	rundll32.exe	96
PID 4776 wrote to memory of 3568	4776	rundll32.exe	96
PID 4776 wrote to memory of 4236	4776	rundll32.exe	98
PID 4776 wrote to memory of 4236	4776	rundll32.exe	98
PID 4776 wrote to memory of 4236	4776	rundll32.exe	98
PID 4776 wrote to memory of 4000	4776	rundll32.exe	100
PID 4776 wrote to memory of 4000	4776	rundll32.exe	100
PID 4776 wrote to memory of 4000	4776	rundll32.exe	100

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:3200
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a05b43f0ff416c7c1c3f2310f24fb38860a3c59468a531956feb6c3f5a314c90.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4776
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1280
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 88-af-ef-89-40-1a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1788
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 41-f9-6c-70-b1-dd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1572
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.181 ee-ec-ed-60-71-4c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4956
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 17-a0-6d-e5-5c-1d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3668
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c4-e0-47-c8-53-31
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3676
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 3f-10-c1-0b-c1-41
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3568
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 6d-e6-f0-6c-93-0a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4236
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 a0-4e-4d-11-34-d0
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4000
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 716
    3⤵
    - Program crash
    PID:3028

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4776 -ip 4776
1⤵
PID:3928

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/4776-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/4776-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download