socks5systemz | 8bd83991686cc480de09a4a436bb15dbd5ec7ec129b10dfa6f60e6d425e2772a

General

Target

5b420a717a26e87669adc7ddcb94a545.exe
Size

2.4MB
MD5

5b420a717a26e87669adc7ddcb94a545
SHA1

d68fe3d6384afca42ce84592e96f92703f6c5a56
SHA256

8bd83991686cc480de09a4a436bb15dbd5ec7ec129b10dfa6f60e6d425e2772a
SHA512

c349ea2f052d5696ec6679beae3dc9cb2fd2363d2ecf660adb035819f364b39ef3255fda96063d803249d5efea340ef63e74abed656fce7478a3756d1ae7fb71
SSDEEP

49152:C98S78YwFBpSt7zxLdrvx5G9iVH39Uwk26BIqov0Fr3LJmtAopGP3CT:M85Idrvx5G9iVX9UFWqIyBm/EU

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://cebzuqq.net/search/?q=67e28dd86a5ef62a130aa5197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923b6e8efa18c0ec97

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2724-77-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz
behavioral1/memory/2724-78-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz
behavioral1/memory/2724-88-0x00000000026D0000-0x0000000002772000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2588	sadkodrive.exe
2724	sadkodrive.exe

Loads dropped DLL 6 IoCs

pid	Process
3028	5b420a717a26e87669adc7ddcb94a545.exe
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2516	5b420a717a26e87669adc7ddcb94a545.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	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

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2516	5b420a717a26e87669adc7ddcb94a545.tmp
2516	5b420a717a26e87669adc7ddcb94a545.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2516	5b420a717a26e87669adc7ddcb94a545.tmp

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 3028 wrote to memory of 2516	3028	5b420a717a26e87669adc7ddcb94a545.exe	28
PID 2516 wrote to memory of 2588	2516	5b420a717a26e87669adc7ddcb94a545.tmp	29
PID 2516 wrote to memory of 2588	2516	5b420a717a26e87669adc7ddcb94a545.tmp	29
PID 2516 wrote to memory of 2588	2516	5b420a717a26e87669adc7ddcb94a545.tmp	29
PID 2516 wrote to memory of 2588	2516	5b420a717a26e87669adc7ddcb94a545.tmp	29
PID 2516 wrote to memory of 2724	2516	5b420a717a26e87669adc7ddcb94a545.tmp	30
PID 2516 wrote to memory of 2724	2516	5b420a717a26e87669adc7ddcb94a545.tmp	30
PID 2516 wrote to memory of 2724	2516	5b420a717a26e87669adc7ddcb94a545.tmp	30
PID 2516 wrote to memory of 2724	2516	5b420a717a26e87669adc7ddcb94a545.tmp	30

C:\Users\Admin\AppData\Local\Temp\5b420a717a26e87669adc7ddcb94a545.exe
"C:\Users\Admin\AppData\Local\Temp\5b420a717a26e87669adc7ddcb94a545.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3028
- C:\Users\Admin\AppData\Local\Temp\is-PMB4D.tmp\5b420a717a26e87669adc7ddcb94a545.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-PMB4D.tmp\5b420a717a26e87669adc7ddcb94a545.tmp" /SL5="$5014E,2188603,56832,C:\Users\Admin\AppData\Local\Temp\5b420a717a26e87669adc7ddcb94a545.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2516
- - C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe
    "C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2588
- - C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe
    "C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe" -s
    3⤵
    - Executes dropped EXE
    PID:2724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe

Filesize
3.2MB

MD5
aaad1d27e940f262aba9a18dc9fe716c

SHA1
0243907c37c554da0178ffd95cb76c43a0a5fe1e

SHA256
93fb1ddbd30e9d182ae8bd542abe6adac38774fa2ca4015dc2de8979310e4548

SHA512
6cc60f7016017d89b05432c042820c1dbe8e5901e264c2c917bca1b3eed40156ecc73621869471d420defbf927c060ecc500e63a6f4e902f8960a5008e1dd997

Download Submit
\Users\Admin\AppData\Local\Sadko Drive Speed\sadkodrive.exe

Filesize
1.4MB

MD5
9cc0e29b4c614f6bc833eb67a23ce55d

SHA1
e1787776d9c1f2d19d794b9d00769f6b9883c4aa

SHA256
04fc4a706862ff4e0c22a1cb05796228966364137a8d6019b63146de2be1deec

SHA512
e8081262327370f40d7692d65fce32c48e44f232956d99e0af932bc1a51daf31b7306af9568c6355ecd7aaffa2f1e06876530fda5a683d4bfa64eafe252fa10d

Download Submit
\Users\Admin\AppData\Local\Temp\is-N6VBQ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-N6VBQ.tmp\_isetup\_isdecmp.dll

Filesize
19KB

MD5
3adaa386b671c2df3bae5b39dc093008

SHA1
067cf95fbdb922d81db58432c46930f86d23dded

SHA256
71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

SHA512
bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

Download Submit
\Users\Admin\AppData\Local\Temp\is-N6VBQ.tmp\_isetup\_shfoldr.dll

Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-PMB4D.tmp\5b420a717a26e87669adc7ddcb94a545.tmp

Filesize
690KB

MD5
a4a2a684c1454484e5b95a81c1bd1b34

SHA1
fcb5a95d4847a296f938a0f2e1b2d286d8c728a1

SHA256
6155c75f1b12a43374733984467f26adaf930b8b5c56e2986e3da0ffdcd13653

SHA512
7c9866bdb41e06de09a805efce06a6a2bcbea544f9dc7834c716d4ae7d15f413283782ec17a158aa8b35e247f20622fb65f803cb5c000820c164627ece5f9aef

Download Submit
memory/2516-59-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2516-57-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/2516-8-0x00000000001D0000-0x00000000001D1000-memory.dmp

Filesize
4KB

Download
memory/2516-45-0x0000000003AA0000-0x0000000003DCC000-memory.dmp

Filesize
3.2MB

Download
memory/2516-62-0x0000000003AA0000-0x0000000003DCC000-memory.dmp

Filesize
3.2MB

Download
memory/2588-46-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2588-48-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2588-47-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2588-51-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-64-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-77-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2724-58-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-107-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-55-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-63-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-53-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-67-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-70-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-73-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-76-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-104-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-78-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2724-84-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-87-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-88-0x00000000026D0000-0x0000000002772000-memory.dmp

Filesize
648KB

Download
memory/2724-91-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-94-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-97-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/2724-100-0x0000000000400000-0x000000000072C000-memory.dmp

Filesize
3.2MB

Download
memory/3028-56-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3028-1-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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