b15437fc76b3d06fa4b6ff903611c14f89e84bed14213493e9d9bf8f424d83d3

Analysis

max time kernel
14s
max time network
19s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
25-12-2024 19:19

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

b15437fc76b3d06fa4b6ff903611c14f89e84bed14213493e9d9bf8f424d83d3.dll
Size

80KB
MD5

b7d38da075892a125e8f9ce9c40ea437
SHA1

31f004e8ecb17ba6e6cfa359b98cdd966682717a
SHA256

b15437fc76b3d06fa4b6ff903611c14f89e84bed14213493e9d9bf8f424d83d3
SHA512

95ef3abd12796fe82f511a673d3c6acc3921a0cbd66c8bcb88aa3e81c4c251d20d08577235e857f67e759e757090a3e93a75b36294f9ec39c95b8d9c86698a2e
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEANHOjv:5dbwovEVyqgoZmZXWfIdQdRaefPDHOjv

Score

6^/10

discovery upx

Malware Config

Signatures

Network Service Discovery 1 TTPs 8 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1664	arp.exe
2100	arp.exe
2872	arp.exe
2888	arp.exe
2908	arp.exe
2852	arp.exe
2760	arp.exe
2052	arp.exe

UPX packed file 3 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2540-0-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2540-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/2540-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1740	2540	WerFault.exe	29

System Location Discovery: System Language Discovery 1 TTPs 8 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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2540	rundll32.exe

Suspicious use of WriteProcessMemory 39 IoCs

description	pid	Process	procid_target
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 1048 wrote to memory of 2540	1048	rundll32.exe	29
PID 2540 wrote to memory of 2052	2540	rundll32.exe	31
PID 2540 wrote to memory of 2052	2540	rundll32.exe	31
PID 2540 wrote to memory of 2052	2540	rundll32.exe	31
PID 2540 wrote to memory of 2052	2540	rundll32.exe	31
PID 2540 wrote to memory of 1740	2540	rundll32.exe	30
PID 2540 wrote to memory of 1740	2540	rundll32.exe	30
PID 2540 wrote to memory of 1740	2540	rundll32.exe	30
PID 2540 wrote to memory of 1740	2540	rundll32.exe	30
PID 2540 wrote to memory of 1664	2540	rundll32.exe	33
PID 2540 wrote to memory of 1664	2540	rundll32.exe	33
PID 2540 wrote to memory of 1664	2540	rundll32.exe	33
PID 2540 wrote to memory of 1664	2540	rundll32.exe	33
PID 2540 wrote to memory of 2100	2540	rundll32.exe	34
PID 2540 wrote to memory of 2100	2540	rundll32.exe	34
PID 2540 wrote to memory of 2100	2540	rundll32.exe	34
PID 2540 wrote to memory of 2100	2540	rundll32.exe	34
PID 2540 wrote to memory of 2760	2540	rundll32.exe	35
PID 2540 wrote to memory of 2760	2540	rundll32.exe	35
PID 2540 wrote to memory of 2760	2540	rundll32.exe	35
PID 2540 wrote to memory of 2760	2540	rundll32.exe	35
PID 2540 wrote to memory of 2852	2540	rundll32.exe	36
PID 2540 wrote to memory of 2852	2540	rundll32.exe	36
PID 2540 wrote to memory of 2852	2540	rundll32.exe	36
PID 2540 wrote to memory of 2852	2540	rundll32.exe	36
PID 2540 wrote to memory of 2872	2540	rundll32.exe	37
PID 2540 wrote to memory of 2872	2540	rundll32.exe	37
PID 2540 wrote to memory of 2872	2540	rundll32.exe	37
PID 2540 wrote to memory of 2872	2540	rundll32.exe	37
PID 2540 wrote to memory of 2888	2540	rundll32.exe	39
PID 2540 wrote to memory of 2888	2540	rundll32.exe	39
PID 2540 wrote to memory of 2888	2540	rundll32.exe	39
PID 2540 wrote to memory of 2888	2540	rundll32.exe	39

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\b15437fc76b3d06fa4b6ff903611c14f89e84bed14213493e9d9bf8f424d83d3.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1048
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\b15437fc76b3d06fa4b6ff903611c14f89e84bed14213493e9d9bf8f424d83d3.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:2540
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2540 -s 324
    3⤵
    - Program crash
    PID:1740
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2052
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 d0-e6-7b-50-10-4f
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1664
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 2d-0a-1c-24-50-c2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2100
- - C:\Windows\SysWOW64\arp.exe
    arp -s 154.61.71.51 b0-8d-96-40-49-b2
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2760
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 d1-a4-9c-b6-68-62
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2852
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 df-17-a0-07-67-2c
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2872
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 fd-6c-ee-46-bf-2d
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2888
- - C:\Windows\SysWOW64\arp.exe
    arp -s 239.255.255.250 8b-45-11-21-7b-db
    3⤵
    - Network Service Discovery
    PID:2908

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

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2540-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2540-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/2540-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download