socks5systemz | 8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8

General

Target

8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe
Size

5.0MB
MD5

2115b7844302181f7b848b77a3de7def
SHA1

671d9a9d4bce2c4a7b864f57bbb132e1eed7eb9f
SHA256

8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8
SHA512

17f3529dcec9122a824ee54bab0d95c5504000e22169f4c0db742646a075902f32d2629ca18968215d38f16aff5e48f1c5e74a6eada12c51142c77916a57d7ca
SSDEEP

98304:CHUiJRy/n97DW9Hb+LXGWv0kCnoOXsIUtdodgfbDCEFww7Ae+zeqgQBjnqyQxB:8U6RgS+bG3kW8IUAGfRFD7tzqx9fQH

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4032-85-0x00000000008B0000-0x0000000000952000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp
4588	soundchangerbeta32_64.exe
4032	soundchangerbeta32_64.exe

Loads dropped DLL 1 IoCs

pid	Process
1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp

Unexpected DNS network traffic destination 1 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	ioc
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

pid	Process
1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 3152 wrote to memory of 1344	3152	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe	73
PID 3152 wrote to memory of 1344	3152	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe	73
PID 3152 wrote to memory of 1344	3152	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe	73
PID 1344 wrote to memory of 4588	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	74
PID 1344 wrote to memory of 4588	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	74
PID 1344 wrote to memory of 4588	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	74
PID 1344 wrote to memory of 4032	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	75
PID 1344 wrote to memory of 4032	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	75
PID 1344 wrote to memory of 4032	1344	8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp	75

C:\Users\Admin\AppData\Local\Temp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe
"C:\Users\Admin\AppData\Local\Temp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3152
- C:\Users\Admin\AppData\Local\Temp\is-4O5VO.tmp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4O5VO.tmp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp" /SL5="$B01EA,5032637,54272,C:\Users\Admin\AppData\Local\Temp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1344
- - C:\Users\Admin\AppData\Local\Sound Changer Beta\soundchangerbeta32_64.exe
    "C:\Users\Admin\AppData\Local\Sound Changer Beta\soundchangerbeta32_64.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4588
- - C:\Users\Admin\AppData\Local\Sound Changer Beta\soundchangerbeta32_64.exe
    "C:\Users\Admin\AppData\Local\Sound Changer Beta\soundchangerbeta32_64.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4032

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\Sound Changer Beta\soundchangerbeta32_64.exe

Filesize
3.6MB

MD5
3b947ed2f5f4f0961ae908f1fc65f867

SHA1
77515a21ff0089f386865661cebbb7f4fca7ff7c

SHA256
d8afe4556eb5fb9f4e9a1271219f0e5dfd375a529b5ae800595ce5b1e0832dde

SHA512
5e9a63855d61fb6be7368c757f1b23afc262cd3108db09ac6d54c4fce7172a08663f23a7fde11db7405e0c4c7636199590e77e504affafa97eaae5e8abbf13f5

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4O5VO.tmp\8bb83116cc9da14c1884a63b8fabb84bf20001d7e23fca955b4c33925ddb7ad8.tmp

Filesize
680KB

MD5
54440e49cc801d210a69e09e1b0f4d50

SHA1
6677e7669e2233187d03f7a8f8ccaf7ceced0f64

SHA256
abdb37e28207f629e4c7c2d3a756db7dfec8a36c25e2ae5fadbd182b4ad076ac

SHA512
f3ce02e946f795a90cd5e473d910b1c7841a0d82da28fb54b360c137921ebf3bb0efe9e3b49ed874d99ff0698f32cb18b31b21cf1e4f46e3e708bec0c21f016e

Download Submit
\Users\Admin\AppData\Local\Temp\is-28Q75.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1344-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1344-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3152-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3152-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3152-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4032-107-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-92-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-131-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-126-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-70-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-73-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-76-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-79-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-82-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-85-0x00000000008B0000-0x0000000000952000-memory.dmp

Filesize
648KB

Download
memory/4032-87-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-66-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-95-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-98-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-101-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-104-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-123-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-111-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-114-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-117-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4032-120-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4588-62-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4588-60-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download
memory/4588-64-0x0000000000400000-0x000000000079F000-memory.dmp

Filesize
3.6MB

Download

Analysis

Sharing