socks5systemz | 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2024 05:07

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General

Target

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe
Size

5.4MB
MD5

44a008c0bfac8b7801ae12c1505bc536
SHA1

f38c890f6557de88e0a8dd81f587ef13b829824d
SHA256

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f
SHA512

0d4201e95a50c00ebb97de127e4d9767dab90dc58d4bd3776a953a69a029c21509f256702f383633eb724191cc62c5a37c33aeacb4a18dbad129ba122a1d636b
SSDEEP

98304:CELp6Dy71iMIBaJ0YRZaH1w6aiYhogGponAP0sEKJ/O5duSJjJEpYvXkZQxu:JkDg0Id+6h+mw/O5RtEi0ZQE

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/4508-86-0x0000000000930000-0x00000000009D1000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmpvkfreeaudiosaver.exevkfreeaudiosaver.exe

pid process

1944 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
856 vkfreeaudiosaver.exe
4508 vkfreeaudiosaver.exe
Loads dropped DLL 1 IoCs

Processes:

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

pid process

1944 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 91.211.247.248
Destination IP 91.211.247.248
Destination IP 152.89.198.214
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

pid process

1944 185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

resource	yara_rule
behavioral1/memory/4508-86-0x0000000000930000-0x00000000009D1000-memory.dmp	family_socks5systemz

pid	process
1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
856	vkfreeaudiosaver.exe
4508	vkfreeaudiosaver.exe

pid	process
1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

description	ioc
Destination IP	91.211.247.248
Destination IP	91.211.247.248
Destination IP	152.89.198.214

pid	process
1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp

description	pid	process	target process
PID 400 wrote to memory of 1944	400	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
PID 400 wrote to memory of 1944	400	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
PID 400 wrote to memory of 1944	400	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
PID 1944 wrote to memory of 856	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe
PID 1944 wrote to memory of 856	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe
PID 1944 wrote to memory of 856	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe
PID 1944 wrote to memory of 4508	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe
PID 1944 wrote to memory of 4508	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe
PID 1944 wrote to memory of 4508	1944	185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp	vkfreeaudiosaver.exe

C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe
"C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:400

C:\Users\Admin\AppData\Local\Temp\is-SOCOT.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
"C:\Users\Admin\AppData\Local\Temp\is-SOCOT.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp" /SL5="$A01D0,5368187,54272,C:\Users\Admin\AppData\Local\Temp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1944

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -i
3⤵
- Executes dropped EXE
PID:856

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -s
3⤵
- Executes dropped EXE
PID:4508

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-RHLOL.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-SOCOT.tmp\185075db7d0312ff20dc0c2f2083cf273d0fe9fecb119ee9a706111d2f2cc94f.tmp
Filesize
680KB

MD5
1a7fbe9723876a61fefe7f773c65e764

SHA1
5137048c3e0c14f0c7cc3bf82c03028ccb3e5d50

SHA256
fa413cdf3dcccae8ca1c65264878b4697bb88d7ccac4963dd75d99990a2f851b

SHA512
a906aef973d5ef18e078d9377555ff9d499fac2ffbca526d5708d95446bd89c31eb98e791dcde22c150a7df1c3d31a583fb9398da1e0cbc4677302e6a0a0af43

Download Submit
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
Filesize
3.6MB

MD5
3dabe7eced5bbec389dd53e7537cbaeb

SHA1
2b91c7cb3c7d0b35707d84081969d2b8d70d52c7

SHA256
66714f0f429c1e84c469af61d6fe184577e14f414a1f55108b50bc4cddb72068

SHA512
eab13cd914e28dbd1db5b97042450614737c2ecc045614317ca35cb41ef99367bab9d61033e6dcfda5d0e5c36cd6b6ebd5cd2dd96fcae3d004d3118f3e26f43a

Download Submit
memory/400-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/400-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/400-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/856-59-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/856-60-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/856-62-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/856-64-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/1944-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1944-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4508-73-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-93-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-67-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-74-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-77-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-80-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-83-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-86-0x0000000000930000-0x00000000009D1000-memory.dmp

Filesize
644KB

Download
memory/4508-88-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-70-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-96-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-99-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-102-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-105-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-108-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-111-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download
memory/4508-114-0x0000000000400000-0x00000000007A8000-memory.dmp

Filesize
3.7MB

Download