socks5systemz | 193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2

General

Target

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe
Size

4.8MB
MD5

5618252bc2559b564db89c7c50868bcf
SHA1

ff96d364bd5a98a2dc8d29fcc540956298b15a1c
SHA256

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2
SHA512

6b181e6cafd5352d7915d1e0c0eab123423fce8132cbf2aa6f12a57bf23ec05f0d35a098ec656a590f13a7b40febe74ffb9507ff887f58930f618d319df2d46d
SSDEEP

98304:mxO1GDvbTGYhb8QSfJEly4x3AJki9zVfrqs0xIFaA8UG/mZf:mBrGYhEREly4x3CzVfrqsAD1mf

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buuserf.com

http://buuserf.com/search/?q=67e28dd86d5ff028450dff177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f571ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef909c3e

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2416-83-0x00000000008F0000-0x0000000000992000-memory.dmp	family_socks5systemz

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

Processes:

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

516 193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
3204 m4atomp3converter.exe
2416 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

pid process

516 193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.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:

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

pid process

516 193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

pid	process
516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
3204	m4atomp3converter.exe
2416	m4atomp3converter.exe

pid	process
516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp

description	pid	process	target process
PID 3640 wrote to memory of 516	3640	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
PID 3640 wrote to memory of 516	3640	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
PID 3640 wrote to memory of 516	3640	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
PID 516 wrote to memory of 3204	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe
PID 516 wrote to memory of 3204	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe
PID 516 wrote to memory of 3204	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe
PID 516 wrote to memory of 2416	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe
PID 516 wrote to memory of 2416	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe
PID 516 wrote to memory of 2416	516	193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe
"C:\Users\Admin\AppData\Local\Temp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3640

C:\Users\Admin\AppData\Local\Temp\is-6891M.tmp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
"C:\Users\Admin\AppData\Local\Temp\is-6891M.tmp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp" /SL5="$B01D4,4778432,54272,C:\Users\Admin\AppData\Local\Temp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:516

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
3⤵
- Executes dropped EXE
PID:3204

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
3⤵
- Executes dropped EXE
PID:2416

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
2.9MB

MD5
ad7b86704e7ac5153c03edd0c3ef1768

SHA1
4841a53eea38e7426809d7840ca300a6ed43c701

SHA256
3453497f60f3b730e15d3d697dd91233042c92a8706fe7601084c09b93146c79

SHA512
f40ede904efbca61c9440de0ad80cb6b9e3b047b8caf2ad745c9762cf5c2168b78e5aeba21f8dd8e6c6fdd9ba098ed4566aa77642e09072225c0489aebb34b5f

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6891M.tmp\193d3b57054d5a6b791995792f232133f7a9d1988834da6736c73a379f88f7b2.tmp
Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
\Users\Admin\AppData\Local\Temp\is-3OT93.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/516-67-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/516-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2416-99-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-90-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-129-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-124-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-121-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-118-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-68-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-71-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-74-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-77-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-80-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-83-0x00000000008F0000-0x0000000000992000-memory.dmp

Filesize
648KB

Download
memory/2416-85-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-115-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-93-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-96-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-112-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-102-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-105-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2416-109-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3204-59-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3204-63-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3204-60-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3640-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3640-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3640-66-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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