socks5systemz | 601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33

General

Target

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe
Size

4.9MB
MD5

9d1968adaef070d4a7912dc7b809f3ce
SHA1

bbd70aa9dce88771c323aa311d138bca0660f1a1
SHA256

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33
SHA512

10a6715e1118cfd976a431b0eec9d19e94fad2c0372ba2b0ef3d4883ccd8ee12183a182ea77f0fe34e73df02d5402d4c81f546946dda7ac10cd85cc2618e64d7
SSDEEP

98304:mx2Vricm7UW0tqEWLeoavNP3yCEEKYJWZ+OcJzjoaeKG0N+tOCWr:O0icGetqEVlvFyCEYJWwOqj1hN2Ovr

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bbzmcpo.com

http://bbzmcpo.com/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff719c0e9969c3f

http://bbzmcpo.com/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12eab517aa5c96bd86ef9c804c895a8bbc896c58e713bc90c91d36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d923bcb6c9012

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/4784-85-0x0000000002470000-0x0000000002512000-memory.dmp	family_socks5systemz
behavioral1/memory/4784-109-0x0000000002470000-0x0000000002512000-memory.dmp	family_socks5systemz
behavioral1/memory/4784-108-0x0000000002470000-0x0000000002512000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmpaudialstunebite32.exeaudialstunebite32.exe

pid process

2020 601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
4808 audialstunebite32.exe
4784 audialstunebite32.exe
Loads dropped DLL 1 IoCs

Processes:

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

pid process

2020 601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
Unexpected DNS network traffic destination 1 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
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:

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

pid process

2020 601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

pid	process
2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
4808	audialstunebite32.exe
4784	audialstunebite32.exe

pid	process
2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp

description	pid	process	target process
PID 1600 wrote to memory of 2020	1600	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
PID 1600 wrote to memory of 2020	1600	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
PID 1600 wrote to memory of 2020	1600	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
PID 2020 wrote to memory of 4808	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe
PID 2020 wrote to memory of 4808	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe
PID 2020 wrote to memory of 4808	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe
PID 2020 wrote to memory of 4784	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe
PID 2020 wrote to memory of 4784	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe
PID 2020 wrote to memory of 4784	2020	601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp	audialstunebite32.exe

C:\Users\Admin\AppData\Local\Temp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe
"C:\Users\Admin\AppData\Local\Temp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1600

C:\Users\Admin\AppData\Local\Temp\is-3CS47.tmp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
"C:\Users\Admin\AppData\Local\Temp\is-3CS47.tmp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp" /SL5="$601DA,4849517,54272,C:\Users\Admin\AppData\Local\Temp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2020

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -i
3⤵
- Executes dropped EXE
PID:4808

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -s
3⤵
- Executes dropped EXE
PID:4784

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
Filesize
2.4MB

MD5
7bf65953806422f72ad5d4d1bd85ddf0

SHA1
7bed07c62c0c3f685c09e0f68b08b161564b3a33

SHA256
d3636d3dc9989626a9315b68db1205ca5f51d8ae98879ce3e6df94dfb6aed326

SHA512
ccf396906d9366f123dbce25e38bac746f45827375b1cbe28c1ab29caeaf774b2639baa86248deeb26fe17c3390e2093b14e8213b228fa3e209eca080d2b425e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-160RM.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3CS47.tmp\601cf4459733f6c313c72ead2afb50a620b64c592c0722b5b260e1242e35aa33.tmp
Filesize
680KB

MD5
66f4568e899ebb18b20a877f017f08fd

SHA1
887fb52becc444c529acf26e71147b840c7ff885

SHA256
8cf70a4ca81a1d9db93d89a13adf2feb2c1da109142ac356d14fa427694178e0

SHA512
2ea355abe2f31a7edb5b8cd96799a2843549ec82991fc64d9d8a13e0faec5849fce5864ef0148540f7246c646fd3c6e369d036450fe6a075afc57bb239410b66

Download Submit
memory/1600-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1600-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1600-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2020-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2020-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4784-98-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-92-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-116-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-113-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-70-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-73-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-76-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-79-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-82-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-85-0x0000000002470000-0x0000000002512000-memory.dmp

Filesize
648KB

Download
memory/4784-89-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-67-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-95-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-108-0x0000000002470000-0x0000000002512000-memory.dmp

Filesize
648KB

Download
memory/4784-101-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-104-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-107-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4784-109-0x0000000002470000-0x0000000002512000-memory.dmp

Filesize
648KB

Download
memory/4808-59-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4808-63-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download
memory/4808-61-0x0000000000400000-0x0000000000665000-memory.dmp

Filesize
2.4MB

Download

Analysis

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