a62336567025f15d3680206d9f4e176c123c79c5fe602fdf6af164f87762bba9

Analysis

max time kernel
119s
max time network
122s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
09-01-2025 20:29

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General

Target

bin/FileSystem_Proxy.dll
Size

359KB
MD5

fbd9f9fe1e6f9885ca11a799e6a774dc
SHA1

b360fefffc0c1be8d306fdb13d36ce4e2e3afdc9
SHA256

41360fb47019f747230d59e382d169f5aacdbb5dd50befed2b342cf3db30a6f2
SHA512

1c9133d2a93c64cda3291045293bd381f61435380bf2454d6ae9307f3c2c6ca90466b38cd0e94943a5264f6fcecee44a1465a81adc35f60ed1747492501984ca
SSDEEP

6144:6U2qVMZfePI0n7kw94Rxniu8j1C/ANs3ph0lhSMXlBXBW/0AO6iu4Ff:6CznIw94RViuNANs3ph0lhSMXle0g74V

Score

3^/10

discovery

Malware Config

Signatures

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2904	1812	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 1 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	rundll32.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1628 wrote to memory of 1812	1628	rundll32.exe	30
PID 1812 wrote to memory of 2904	1812	rundll32.exe	31
PID 1812 wrote to memory of 2904	1812	rundll32.exe	31
PID 1812 wrote to memory of 2904	1812	rundll32.exe	31
PID 1812 wrote to memory of 2904	1812	rundll32.exe	31

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\bin\FileSystem_Proxy.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:1628
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\bin\FileSystem_Proxy.dll,#1
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1812
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1812 -s 220
    3⤵
    - Program crash
    PID:2904

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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