socks5systemz | 5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1

General

Target

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe
Size

4.8MB
MD5

7262af3145c36b3a70b2558c4654d801
SHA1

5d65e62b44c4f452f27b02db312be9dad3e67ce5
SHA256

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1
SHA512

d55dcee7a7741b2782b103fa08f0923b28fc328ffd984b63315de1469b8e2faf71fe24d31b41fbcf250f3a9451b8e3182e8b102a0fe79d62ac7bcf9cad8f9b25
SSDEEP

98304:miPTa/2us2U9YyyUXBKoqjZcMH8UZnJfZWBDALJUnvf/C:D2/2us2gBXBUZnJf4BDAGvf/C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckixznh.net

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/872-86-0x0000000000A80000-0x0000000000B22000-memory.dmp	family_socks5systemz

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

Processes:

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

1480 5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
3132 m4atomp3converter.exe
872 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

pid process

1480 5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.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 141.98.234.31
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:

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

pid process

1480 5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

pid	process
1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
3132	m4atomp3converter.exe
872	m4atomp3converter.exe

pid	process
1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	91.211.247.248

pid	process
1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp

description	pid	process	target process
PID 332 wrote to memory of 1480	332	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
PID 332 wrote to memory of 1480	332	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
PID 332 wrote to memory of 1480	332	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
PID 1480 wrote to memory of 3132	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe
PID 1480 wrote to memory of 3132	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe
PID 1480 wrote to memory of 3132	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe
PID 1480 wrote to memory of 872	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe
PID 1480 wrote to memory of 872	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe
PID 1480 wrote to memory of 872	1480	5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe
"C:\Users\Admin\AppData\Local\Temp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:332

C:\Users\Admin\AppData\Local\Temp\is-3TKLI.tmp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
"C:\Users\Admin\AppData\Local\Temp\is-3TKLI.tmp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp" /SL5="$50220,4794393,54272,C:\Users\Admin\AppData\Local\Temp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1480

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:3132

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:872

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
0b0143221c07d996100ec5e3e8d6fe73

SHA1
3e45cdfff0936abe7e83ac88b9bc9b6aaf4d6693

SHA256
863bffc0cb548a20f367908a6ef45ac9addcccff79871b91105543134d04259e

SHA512
58a1b376576dd5a6af20dfcfbcece6da20dc5a16c52e6f657da2d3b854abdb27a2346e63f0cb50e41e41c6b32e19d8678ab3662a7dda0ac6e76ad0dca555cf71

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0ICSO.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3TKLI.tmp\5d76f3a81068e93f5b6fa975812b35e3521a3a9046a58535a89982e506b443c1.tmp
Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
memory/332-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/332-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/332-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/872-91-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-96-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-117-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-67-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-114-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-69-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-111-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-108-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-72-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-75-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-76-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-79-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-82-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-85-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-86-0x0000000000A80000-0x0000000000B22000-memory.dmp

Filesize
648KB

Download
memory/872-105-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-102-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/872-99-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/1480-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1480-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3132-65-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3132-59-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3132-61-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download
memory/3132-64-0x0000000000400000-0x00000000006ED000-memory.dmp

Filesize
2.9MB

Download

Analysis

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