3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6f

Analysis

max time kernel
95s
max time network
98s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 13:38

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General

Target

3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.dll
Size

80KB
MD5

7695b08a7d8f2b7de4b5f5fc4907ac60
SHA1

64d4cf2596f0b2237b773535e1c0fd7f8c14fd20
SHA256

3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6f
SHA512

847b12fb6d24b065d23ae4c5dca806db7bdc88f11d4490b7813426087d345835f693cf775d5ad228abeccce3d2f10850db6773292366724193c489450af89b26
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEVo6+:5dbwovEVyqgoZmZXWfIdQdRaefPrf

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
4264	arp.exe
1680	arp.exe
1676	arp.exe
3292	arp.exe
3276	arp.exe
3236	arp.exe
1000	arp.exe
5068	arp.exe
2244	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2616-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral2/memory/2616-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
3084	2616	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	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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	rundll32.exe

Suspicious use of WriteProcessMemory 30 IoCs

description	pid	Process	procid_target
PID 1916 wrote to memory of 2616	1916	rundll32.exe	82
PID 1916 wrote to memory of 2616	1916	rundll32.exe	82
PID 1916 wrote to memory of 2616	1916	rundll32.exe	82
PID 2616 wrote to memory of 4264	2616	rundll32.exe	83
PID 2616 wrote to memory of 4264	2616	rundll32.exe	83
PID 2616 wrote to memory of 4264	2616	rundll32.exe	83
PID 2616 wrote to memory of 3276	2616	rundll32.exe	87
PID 2616 wrote to memory of 3276	2616	rundll32.exe	87
PID 2616 wrote to memory of 3276	2616	rundll32.exe	87
PID 2616 wrote to memory of 3292	2616	rundll32.exe	88
PID 2616 wrote to memory of 3292	2616	rundll32.exe	88
PID 2616 wrote to memory of 3292	2616	rundll32.exe	88
PID 2616 wrote to memory of 2244	2616	rundll32.exe	89
PID 2616 wrote to memory of 2244	2616	rundll32.exe	89
PID 2616 wrote to memory of 2244	2616	rundll32.exe	89
PID 2616 wrote to memory of 3236	2616	rundll32.exe	90
PID 2616 wrote to memory of 3236	2616	rundll32.exe	90
PID 2616 wrote to memory of 3236	2616	rundll32.exe	90
PID 2616 wrote to memory of 1000	2616	rundll32.exe	91
PID 2616 wrote to memory of 1000	2616	rundll32.exe	91
PID 2616 wrote to memory of 1000	2616	rundll32.exe	91
PID 2616 wrote to memory of 5068	2616	rundll32.exe	93
PID 2616 wrote to memory of 5068	2616	rundll32.exe	93
PID 2616 wrote to memory of 5068	2616	rundll32.exe	93
PID 2616 wrote to memory of 1680	2616	rundll32.exe	94
PID 2616 wrote to memory of 1680	2616	rundll32.exe	94
PID 2616 wrote to memory of 1680	2616	rundll32.exe	94
PID 2616 wrote to memory of 1676	2616	rundll32.exe	95
PID 2616 wrote to memory of 1676	2616	rundll32.exe	95
PID 2616 wrote to memory of 1676	2616	rundll32.exe	95

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1916
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\3a17bd7ee4d67ecefd27f8e0fbd9364f232420f0024320c704437e33bc17fe6fN.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2616
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:4264
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 d9-b4-93-36-24-ee
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3276
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 d7-b9-61-a8-3d-3e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3292
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.180 35-6c-95-19-30-fe
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2244
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 92-98-b1-8c-07-5e
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:3236
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 59-de-21-a7-48-82
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1000
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 8a-48-8b-c4-18-46
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:5068
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 af-21-ab-20-a8-4a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1680
- - C:\Windows\SysWOW64\arp.exe
    arp -s 255.255.255.255 f5-1a-24-78-88-a7
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1676
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2616 -s 728
    3⤵
    - Program crash
    PID:3084

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 2616 -ip 2616
1⤵
PID:5036

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/2616-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2616-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

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