socks5systemz | aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122

General

Target

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe
Size

4.8MB
MD5

5a533f10b239cefbf099274f03862921
SHA1

da592fed5e1d88339cf4979b3041780dc61fe99a
SHA256

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122
SHA512

60e8c3e7b2d3e402a7a8a55889671366b7a0e982c7b9cb25e3c11cf4b85d83a4e0ba2bb1596871889d824ff889db87cd62da0759b95b20374d9ba56e427ecba1
SSDEEP

98304:mZpMGuOjq1Hr7EidC1LR5ha450Z8ui47OWY4Rf8aISqSZ+WD4d/7SnJp/C:3GfqVI1Lrw45K247hY4RBhXbD4hGp/C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckiiine.net

http://ckiiine.net/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff712c9e9949e3b

http://ckiiine.net/search/?q=67e28dd8655df07d165afd1f7c27d78406abdd88be4b12eab517aa5c96bd86ee95844a885a8bbc896c58e713bc90c91936b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9932cb6e9216

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1584-86-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/1584-109-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz
behavioral2/memory/1584-110-0x00000000009F0000-0x0000000000A92000-memory.dmp	family_socks5systemz

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

Processes:

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

5024 aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
2192 m4atomp3converter.exe
1584 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

pid process

5024 aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.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:

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

pid process

5024 aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

pid	process
5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
2192	m4atomp3converter.exe
1584	m4atomp3converter.exe

pid	process
5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exeaafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp

description	pid	process	target process
PID 1896 wrote to memory of 5024	1896	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
PID 1896 wrote to memory of 5024	1896	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
PID 1896 wrote to memory of 5024	1896	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
PID 5024 wrote to memory of 2192	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe
PID 5024 wrote to memory of 2192	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe
PID 5024 wrote to memory of 2192	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe
PID 5024 wrote to memory of 1584	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe
PID 5024 wrote to memory of 1584	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe
PID 5024 wrote to memory of 1584	5024	aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe
"C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1896

C:\Users\Admin\AppData\Local\Temp\is-J4GHH.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
"C:\Users\Admin\AppData\Local\Temp\is-J4GHH.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp" /SL5="$40236,4769144,54272,C:\Users\Admin\AppData\Local\Temp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5024

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:2192

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:1584

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
5607bbeb141ec116576425691f34acd6

SHA1
d7d9f25536b56b095954d1248db8bd9184b540a0

SHA256
7976de4dc383f6b159e8c242ca130f91fddfb470287d06a70b45a5918b681563

SHA512
0f200399a143fa3a52d0e465af4eeaace46a4f40e1d2028246d8c042978cbc27d6040fe64c24969e39a3df0f8dc046b054ddb7556b903e6ab974c08f641870e8

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-J4GHH.tmp\aafc380e4646322f0a833feaf483908a58f6926df0d27f6ca7a15e416c745122.tmp
Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
memory/1584-96-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-80-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-117-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-114-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-110-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1584-109-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1584-108-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-68-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-105-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-102-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-71-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-74-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-77-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-99-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-83-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-86-0x00000000009F0000-0x0000000000A92000-memory.dmp

Filesize
648KB

Download
memory/1584-88-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1584-93-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1896-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1896-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1896-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2192-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2192-63-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2192-60-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/2192-59-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/5024-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5024-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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