48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405

Analysis

max time kernel
85s
max time network
165s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
19/09/2022, 06:51

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General

Target

48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
Size

124KB
MD5

66b3d326528d404d11d40dd382796dd7
SHA1

a9e6b71d80fe1bc4fac071d50eca677742a1919b
SHA256

48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405
SHA512

60b65938fce481b604968a058a45fe044f62b9684383dd5553bfc10012da9a4b0ed380cfd1ce42b3c2994843ebe74cad064a6ef85e8e2f06cbcd40aa94e61729
SSDEEP

768:C9vUs8RBKiI5Xp+1E/jUJA3ZebghwIFky+olhDvuZw+V0dQd3zKipFJyHXm0YQXn:SvUfEX5LyA3ZebRIuyfvu6YYKUx

Score

8^/10

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1152	arx32.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\web\arx32.exe	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
File opened for modification	C:\Windows\web\arx32.exe	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 32 IoCs

pid	Process
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe
1152	arx32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3676 wrote to memory of 1152	3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe	87
PID 3676 wrote to memory of 1152	3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe	87
PID 3676 wrote to memory of 1152	3676	48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe	87
PID 1152 wrote to memory of 3788	1152	arx32.exe	88
PID 1152 wrote to memory of 3788	1152	arx32.exe	88
PID 1152 wrote to memory of 3788	1152	arx32.exe	88

C:\Users\Admin\AppData\Local\Temp\48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe
"C:\Users\Admin\AppData\Local\Temp\48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405.exe"
1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3676
- C:\Windows\web\arx32.exe
  "C:\Windows\web\arx32.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1152
- - C:\Windows\SysWOW64\reg.exe
    reg add "hkcu\Software\Microsoft\Windows NT\CurrentVersion\Windows" /v "load" /t reg_sz /d "C:\Windows\web\arx32.exe" /f
    3⤵
    PID:3788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\Web\arx32.exe

Filesize
124KB

MD5
66b3d326528d404d11d40dd382796dd7

SHA1
a9e6b71d80fe1bc4fac071d50eca677742a1919b

SHA256
48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405

SHA512
60b65938fce481b604968a058a45fe044f62b9684383dd5553bfc10012da9a4b0ed380cfd1ce42b3c2994843ebe74cad064a6ef85e8e2f06cbcd40aa94e61729

Download Submit
C:\Windows\web\arx32.exe

Filesize
124KB

MD5
66b3d326528d404d11d40dd382796dd7

SHA1
a9e6b71d80fe1bc4fac071d50eca677742a1919b

SHA256
48e8d4339990a04ff24c3cb2e4d5b366ce6bbcd7920bd07db59198247bd7b405

SHA512
60b65938fce481b604968a058a45fe044f62b9684383dd5553bfc10012da9a4b0ed380cfd1ce42b3c2994843ebe74cad064a6ef85e8e2f06cbcd40aa94e61729

Download Submit
memory/1152-138-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/1152-139-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3676-132-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download
memory/3676-136-0x0000000000400000-0x0000000000418000-memory.dmp

Filesize
96KB

Download