socks5systemz | fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622

General

Target

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe
Size

4.8MB
MD5

8dc717ec04865a086480b1be0fde0d72
SHA1

379f1fa44b8b4301f3254501850c6dfd86f96147
SHA256

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622
SHA512

f2f18fc4e8433221dbf3d0e22e237b787bfad2b458625213bbacb0d8eb78477bc0f04e0a697b92a56d605b0139bb1802cdaf2d804de1ad701b582eacb67e86ef
SSDEEP

98304:mdYhyAOCSNcxiizt2RreYW2aVCCQQCJjZ1h23ll:cYXFk892vaQKuZPwll

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bocczmo.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1704-84-0x00000000028B0000-0x0000000002952000-memory.dmp	family_socks5systemz

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

Processes:

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmpstarsaudioconverter32.exestarsaudioconverter32.exe

pid process

4952 fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
3312 starsaudioconverter32.exe
1704 starsaudioconverter32.exe
Loads dropped DLL 1 IoCs

Processes:

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

pid process

4952 fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.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 152.89.198.214
Destination IP 91.211.247.248
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:

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

pid process

4952 fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

pid	process
4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
3312	starsaudioconverter32.exe
1704	starsaudioconverter32.exe

pid	process
4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	45.155.250.90

pid	process
4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exefb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

description	pid	process	target process
PID 3668 wrote to memory of 4952	3668	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
PID 3668 wrote to memory of 4952	3668	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
PID 3668 wrote to memory of 4952	3668	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
PID 4952 wrote to memory of 3312	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe
PID 4952 wrote to memory of 3312	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe
PID 4952 wrote to memory of 3312	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe
PID 4952 wrote to memory of 1704	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe
PID 4952 wrote to memory of 1704	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe
PID 4952 wrote to memory of 1704	4952	fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp	starsaudioconverter32.exe

C:\Users\Admin\AppData\Local\Temp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe
"C:\Users\Admin\AppData\Local\Temp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3668

C:\Users\Admin\AppData\Local\Temp\is-J1I88.tmp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp
"C:\Users\Admin\AppData\Local\Temp\is-J1I88.tmp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp" /SL5="$4023A,4826772,54272,C:\Users\Admin\AppData\Local\Temp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4952

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -i
3⤵
- Executes dropped EXE
PID:3312

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe" -s
3⤵
- Executes dropped EXE
PID:1704

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter32.exe

Filesize
2.3MB

MD5
6582870f3c69755e17794b99b79bf11e

SHA1
3f038ee9b8ac30dc51dcec094da0d22a324b141f

SHA256
a0a621ed7998dd057f0d51d6bbfbd54f4f755c9974c2199cd40fcdcf4eba571e

SHA512
664cf99ac63b698d5eaa38da2c066f3a18c8599db68eb4f384281e271b3f8aca320db137b9fe6455a1efb7bc5f9d695fea20e292f6a88dea6c74e940a1080ad7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-GI6FK.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-J1I88.tmp\fb6afe9736f88c71b7e9ff95884ff9f67a4a7dbac8e81f9431cd610511e19622.tmp

Filesize
680KB

MD5
e805fd8d14185debe4999b420e788690

SHA1
014b87617a2f2c62530ec2da91a5be0d8078c098

SHA256
720ee272d4e0d2c13caaa0051d875437161f82df74152144276e87f694712a3c

SHA512
33b68c21ef3f6ea17736ff45881019e363abc2df83ae4c1399bb3b3466199b06731bdd45c0852cad33408b54371cb9a9a574ec3445dd5030f6e56306f1e81dbf

Download Submit
memory/1704-96-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-80-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-114-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-111-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-108-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-105-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-102-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-68-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-99-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-93-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-71-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-74-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-77-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-87-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-83-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/1704-84-0x00000000028B0000-0x0000000002952000-memory.dmp

Filesize
648KB

Download
memory/3312-65-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/3312-63-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/3312-60-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/3312-59-0x0000000000400000-0x000000000065A000-memory.dmp

Filesize
2.4MB

Download
memory/3668-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3668-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3668-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4952-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4952-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing