a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d

Analysis

max time kernel
122s
max time network
124s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19-12-2024 10:19

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General

Target

a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll
Size

80KB
MD5

8b0386d1da743cd68938e9bc3ea41877
SHA1

370571c3b2e9e26a96f309056d3c14744f65615a
SHA256

a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d
SHA512

b9afa0bad92a2cc89aad615cec88b9a18dd60925a7755e6d94c0120d8f3a8b302db322ff03ba74442725bb760c3700d8d14f2b6499eb79ce1955af8870265969
SSDEEP

1536:5POOhfbOjovgdVydUgoNrwBZXGDaZ1QIxrfItMgR7ZaO+fGxHZPEeWpQi:5dbwovEVyqgoZmZXWfIdQdRaefPrEv

Score

6^/10

discovery upx

Malware Config

Signatures

Network Service Discovery 1 TTPs 7 IoCs

Attempt to gather information on host's network.

discovery

Network Service Discovery

T1046

pid	Process
1848	arp.exe
2324	arp.exe
1796	arp.exe
2296	arp.exe
2712	arp.exe
2720	arp.exe
2776	arp.exe

UPX packed file 2 IoCs

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

upx

resource	yara_rule
behavioral1/memory/764-1-0x0000000010000000-0x0000000010033000-memory.dmp	upx
behavioral1/memory/764-3-0x0000000010000000-0x0000000010033000-memory.dmp	upx

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2320	764	WerFault.exe	31

System Location Discovery: System Language Discovery 1 TTPs 7 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

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	764	rundll32.exe

Suspicious use of WriteProcessMemory 35 IoCs

description	pid	Process	procid_target
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 2364 wrote to memory of 764	2364	rundll32.exe	31
PID 764 wrote to memory of 2320	764	rundll32.exe	32
PID 764 wrote to memory of 2320	764	rundll32.exe	32
PID 764 wrote to memory of 2320	764	rundll32.exe	32
PID 764 wrote to memory of 2320	764	rundll32.exe	32
PID 764 wrote to memory of 2324	764	rundll32.exe	33
PID 764 wrote to memory of 2324	764	rundll32.exe	33
PID 764 wrote to memory of 2324	764	rundll32.exe	33
PID 764 wrote to memory of 2324	764	rundll32.exe	33
PID 764 wrote to memory of 1796	764	rundll32.exe	35
PID 764 wrote to memory of 1796	764	rundll32.exe	35
PID 764 wrote to memory of 1796	764	rundll32.exe	35
PID 764 wrote to memory of 1796	764	rundll32.exe	35
PID 764 wrote to memory of 2296	764	rundll32.exe	36
PID 764 wrote to memory of 2296	764	rundll32.exe	36
PID 764 wrote to memory of 2296	764	rundll32.exe	36
PID 764 wrote to memory of 2296	764	rundll32.exe	36
PID 764 wrote to memory of 1848	764	rundll32.exe	37
PID 764 wrote to memory of 1848	764	rundll32.exe	37
PID 764 wrote to memory of 1848	764	rundll32.exe	37
PID 764 wrote to memory of 1848	764	rundll32.exe	37
PID 764 wrote to memory of 2712	764	rundll32.exe	39
PID 764 wrote to memory of 2712	764	rundll32.exe	39
PID 764 wrote to memory of 2712	764	rundll32.exe	39
PID 764 wrote to memory of 2712	764	rundll32.exe	39
PID 764 wrote to memory of 2720	764	rundll32.exe	40
PID 764 wrote to memory of 2720	764	rundll32.exe	40
PID 764 wrote to memory of 2720	764	rundll32.exe	40
PID 764 wrote to memory of 2720	764	rundll32.exe	40

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:2364
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\a032ef3dfbd2fba9aa86854095801c84d641e6019efa8bf80244a32c5308e40d.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:764
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 764 -s 308
    3⤵
    - Program crash
    PID:2320
- - C:\Windows\SysWOW64\arp.exe
    arp -a
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2324
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.0.1 f1-48-e4-f4-ef-ba
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1796
- - C:\Windows\SysWOW64\arp.exe
    arp -s 10.127.255.255 37-63-71-ba-e6-26
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2296
- - C:\Windows\SysWOW64\arp.exe
    arp -s 37.27.61.183 eb-0a-79-91-a8-ed
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:1848
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.22 c8-29-2c-5a-44-41
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2712
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.251 6f-13-b3-d4-c3-5b
    3⤵
    - Network Service Discovery
    - System Location Discovery: System Language Discovery
    PID:2720
- - C:\Windows\SysWOW64\arp.exe
    arp -s 224.0.0.252 01-c9-97-a4-55-98
    3⤵
    - Network Service Discovery
    PID:2776

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/764-1-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/764-0-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download
memory/764-3-0x0000000010000000-0x0000000010033000-memory.dmp

Filesize
204KB

Download