socks5systemz | 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b

Analysis

max time kernel
148s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
30-06-2024 00:27

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General

Target

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe
Size

5.1MB
MD5

c37e00474668f9991f0bd4692e24b0a9
SHA1

6ccba44f2b098ed5f5622187c8f5732c62db7d61
SHA256

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b
SHA512

268f0b64d4ad33f292f21283cacf6e21cd9633f2caa705e72c6c78acfece5b7db8a33d4e2835f33aa3e5b49c658ee8776f9ead44acd7f05c50a53dc1269b9d0b
SSDEEP

98304:CkjOeC0qj7hoBj0YKiVt8srQIkdXALIgA8wgp+3+UsPhx917C3Qx9W:tjApoBdLtdQJALIgdwgWgUQa

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/3884-87-0x00000000009C0000-0x0000000000A62000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

4848 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
1220 vkfreeaudiosaver32_64.exe
3884 vkfreeaudiosaver32_64.exe
Loads dropped DLL 1 IoCs

Processes:

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

pid process

4848 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.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 152.89.198.214
Destination IP 45.155.250.90
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:

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

pid process

4848 7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

resource	yara_rule
behavioral1/memory/3884-87-0x00000000009C0000-0x0000000000A62000-memory.dmp	family_socks5systemz

pid	process
4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
1220	vkfreeaudiosaver32_64.exe
3884	vkfreeaudiosaver32_64.exe

pid	process
4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

description	ioc
Destination IP	91.211.247.248
Destination IP	152.89.198.214
Destination IP	45.155.250.90

pid	process
4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp

description	pid	process	target process
PID 1936 wrote to memory of 4848	1936	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
PID 1936 wrote to memory of 4848	1936	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
PID 1936 wrote to memory of 4848	1936	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
PID 4848 wrote to memory of 1220	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe
PID 4848 wrote to memory of 1220	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe
PID 4848 wrote to memory of 1220	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe
PID 4848 wrote to memory of 3884	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe
PID 4848 wrote to memory of 3884	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe
PID 4848 wrote to memory of 3884	4848	7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe
"C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1936

C:\Users\Admin\AppData\Local\Temp\is-3F7J0.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
"C:\Users\Admin\AppData\Local\Temp\is-3F7J0.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp" /SL5="$7014A,5091464,54272,C:\Users\Admin\AppData\Local\Temp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4848

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i
3⤵
- Executes dropped EXE
PID:1220

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -s
3⤵
- Executes dropped EXE
PID:3884

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-3F7J0.tmp\7537cb9e6066714aa3cc34688da50fc479296a78c5fc116edfdee46633c2d03b.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FEG61.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
Filesize
3.6MB

MD5
b6738b8e179408df0afaa3968fac5348

SHA1
03827cbd314930c56b58bd9e87a9229711edcf17

SHA256
10d1ebbeb557699dc9343787c9ebc4d7ca7ff0b919db4fad750b9838a640515d

SHA512
f2714b78ec18be4b969a9f4a2fdf793755fcf1d4dcae6efb6e2be5c281a543fe13e5a1c42e8cf622470c6bd298b50a184878b15a5079a61e12317d7ec2020ad9

Download Submit
memory/1220-59-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/1220-60-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/1220-63-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/1220-64-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/1936-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1936-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1936-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3884-71-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-84-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-67-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-115-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-112-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-74-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-75-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-78-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-81-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-68-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-87-0x00000000009C0000-0x0000000000A62000-memory.dmp

Filesize
648KB

Download
memory/3884-89-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-94-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-97-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-100-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-103-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-106-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/3884-109-0x0000000000400000-0x00000000007A6000-memory.dmp

Filesize
3.6MB

Download
memory/4848-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4848-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download