5af3ef5c6562097f2cc6a7050f6e263652d97d08fe29b8fe8fa200421b68ee65

Analysis

max time kernel
147s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
04/01/2024, 21:30

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General

Target

41f4d90d426e2f21c80b57bcd99e384c.exe
Size

138KB
MD5

41f4d90d426e2f21c80b57bcd99e384c
SHA1

8387d670b82c2212cef1450388673d80ea7b1386
SHA256

5af3ef5c6562097f2cc6a7050f6e263652d97d08fe29b8fe8fa200421b68ee65
SHA512

4fd2fce182fc5a3a70ade6d606f89759bfbce03dded7ead5392ae0c225bbc5b97cc169134d6f54f48aa56127b217e8f4266a747025c758c959cab3c01ce0a087
SSDEEP

1536:hB1dlgRwgoY9ef3p81UFz2PEnm5YoNoz4BUoNBealHf0lCYCEk:b1dlKwgj23+Oz05YoNozW3NBP/hYCl

Score

7^/10

Malware Config

Signatures

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-1-5-21-1168293393-3419776239-306423207-1000\Control Panel\International\Geo\Nation	41f4d90d426e2f21c80b57bcd99e384c.exe

Executes dropped EXE 1 IoCs

pid	Process
3820	server.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3820	server.exe
3820	server.exe
3820	server.exe
3820	server.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 4912 wrote to memory of 3820	4912	41f4d90d426e2f21c80b57bcd99e384c.exe	90
PID 4912 wrote to memory of 3820	4912	41f4d90d426e2f21c80b57bcd99e384c.exe	90
PID 4912 wrote to memory of 3820	4912	41f4d90d426e2f21c80b57bcd99e384c.exe	90
PID 3820 wrote to memory of 3628	3820	server.exe	35
PID 3820 wrote to memory of 3628	3820	server.exe	35
PID 3820 wrote to memory of 3628	3820	server.exe	35
PID 3820 wrote to memory of 3628	3820	server.exe	35

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:3628
- C:\Users\Admin\AppData\Local\Temp\41f4d90d426e2f21c80b57bcd99e384c.exe
  "C:\Users\Admin\AppData\Local\Temp\41f4d90d426e2f21c80b57bcd99e384c.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4912
- - C:\Extracted\server.exe
    "C:\Extracted\server.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of WriteProcessMemory
    PID:3820

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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:\Extracted\server.exe

Filesize
31KB

MD5
8b5f0f935f2fff261fc4ab56f0b1287e

SHA1
2a833245300134736e1af7e43cb47384e214a31b

SHA256
aec9a33dc94fc6758a16b532e02c87e8c53593cf185427cef55b21bf5df6d8c7

SHA512
eb06049e561d5565b1432df120d3e04ccbd54587bb3a4a98670007a2f410f3e001dc3e35ab08d63242f9ed65591d871973938453aee7cba4ddc5632b99872a5f

Download Submit
C:\Users\Admin\AppData\Local\Temp\sfx.ini

Filesize
212B

MD5
4043f21372dabcb54fb577190280e7d1

SHA1
1cf9ac7c9cbf8e0472cb3e147043271a558b9dbf

SHA256
ff4da7dc53376c7fade6e4762af32589cd2df23876b4739575f154893c36b58e

SHA512
62a5394fb435f91c890d31130e63cb86b11e641f1f58c987d55e23da03cc857d02f4ea51770206cfd5bbfdce25a18658b7dbe1423487ef20bf7a7b9d5e91a04e

Download Submit
memory/3628-27-0x000000007FFF0000-0x000000007FFF7000-memory.dmp

Filesize
28KB

Download
memory/3628-28-0x000000007FFD0000-0x000000007FFD1000-memory.dmp

Filesize
4KB

Download
memory/3820-25-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download
memory/3820-26-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/3820-32-0x0000000010000000-0x0000000010013000-memory.dmp

Filesize
76KB

Download
memory/3820-31-0x0000000000400000-0x0000000000409000-memory.dmp

Filesize
36KB

Download