a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370

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
31-12-2024 02:50

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General

Target

a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll
Size

80KB
MD5

900ec7504b8a66462c35eec7eb060f70
SHA1

379a7c8910d4480b0f1e93ef7473bf927eb31b2e
SHA256

a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370
SHA512

1cfdc4faf6904d6a2082aae377a578f18ac870c163adcfd419f585c4ce895aee8b1d0e7edf40a0962d6aeffcf684d68f3ced896599f1281842760b07f0fe1df2
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPE/Rutge5:5dbwovEVyqgoZmZXWfIdQdRaefPOR7e5

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
4768	arp.exe
2376	arp.exe
2004	arp.exe
2604	arp.exe
536	arp.exe
3692	arp.exe
3780	arp.exe
4996	arp.exe
116	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/928-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/928-2-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1916	928	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	928	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 2276 wrote to memory of 928	2276	rundll32.exe	83
PID 2276 wrote to memory of 928	2276	rundll32.exe	83
PID 2276 wrote to memory of 928	2276	rundll32.exe	83
PID 928 wrote to memory of 4996	928	rundll32.exe	85
PID 928 wrote to memory of 4996	928	rundll32.exe	85
PID 928 wrote to memory of 4996	928	rundll32.exe	85
PID 928 wrote to memory of 3780	928	rundll32.exe	88
PID 928 wrote to memory of 3780	928	rundll32.exe	88
PID 928 wrote to memory of 3780	928	rundll32.exe	88
PID 928 wrote to memory of 2376	928	rundll32.exe	89
PID 928 wrote to memory of 2376	928	rundll32.exe	89
PID 928 wrote to memory of 2376	928	rundll32.exe	89
PID 928 wrote to memory of 4768	928	rundll32.exe	90
PID 928 wrote to memory of 4768	928	rundll32.exe	90
PID 928 wrote to memory of 4768	928	rundll32.exe	90
PID 928 wrote to memory of 3692	928	rundll32.exe	91
PID 928 wrote to memory of 3692	928	rundll32.exe	91
PID 928 wrote to memory of 3692	928	rundll32.exe	91
PID 928 wrote to memory of 2604	928	rundll32.exe	92
PID 928 wrote to memory of 2604	928	rundll32.exe	92
PID 928 wrote to memory of 2604	928	rundll32.exe	92
PID 928 wrote to memory of 536	928	rundll32.exe	93
PID 928 wrote to memory of 536	928	rundll32.exe	93
PID 928 wrote to memory of 536	928	rundll32.exe	93
PID 928 wrote to memory of 2004	928	rundll32.exe	94
PID 928 wrote to memory of 2004	928	rundll32.exe	94
PID 928 wrote to memory of 2004	928	rundll32.exe	94
PID 928 wrote to memory of 116	928	rundll32.exe	95
PID 928 wrote to memory of 116	928	rundll32.exe	95
PID 928 wrote to memory of 116	928	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2276
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a7f5e9de3b8db2f681dc9f17e72d765bb7d16a0933d28f732665df316f2da370N.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:928
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4996
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 ac-4e-7d-ce-71-c4
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3780
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 00-15-41-79-ad-cd
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2376
- - C:\Windows\SysWOW64\arp.exe
    arp -s 49.12.169.208 8a-66-dc-4c-28-35
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4768
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 ef-00-82-f3-4d-86
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3692
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 c1-06-0f-11-26-19
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2604
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 04-4c-63-a3-0d-5d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:536
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 84-17-ad-bb-9c-b1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2004
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 1e-d4-fe-7a-81-f1
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:116
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 928 -s 712
    3⤵
    - Program crash
    PID:1916

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 928 -ip 928
1⤵
PID:2076

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/928-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/928-2-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download