socks5systemz | 25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b

General

Target

25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe
Size

5.1MB
MD5

99a701e355666c6e0a460fe999ba4fd9
SHA1

5598df029ddb35b34d2c84637d5fc03f8e2b8dde
SHA256

25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b
SHA512

1a1a2c3763ff2f5e0648a7d24a746cb4e1998c45dca5aa25efc7c6fd84a4c9cb6a8b70dc4ffd6cc1d714cabeb133ab197143e8438ca82cbd6c34d07962d0d28e
SSDEEP

98304:m6AQ5ewCD4+tlb8W3gJxyNVRdgfFDY00z8vFW39qPrlw8GMAIXMx4Lq:ZewC3th8JeRWf302aAPrlwL1IUsq

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://aalyflj.ru/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffa16c9eb97933f

http://aalyflj.ru/search/?q=67e28dd83f5aa4794209ff1c7c27d78406abdd88be4b12eab517aa5c96bd86e893864a825a8bbc896c58e713bc90c91d36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee909d32c96d9f12

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/4880-95-0x0000000000760000-0x0000000000802000-memory.dmp	family_socks5systemz
behavioral1/memory/4880-119-0x0000000000760000-0x0000000000802000-memory.dmp	family_socks5systemz
behavioral1/memory/4880-120-0x0000000000760000-0x0000000000802000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp
2508	victoriapigments32.exe
4880	victoriapigments32.exe

Loads dropped DLL 3 IoCs

pid	Process
3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp
3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp
3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.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 WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 404 wrote to memory of 3592	404	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe	82
PID 404 wrote to memory of 3592	404	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe	82
PID 404 wrote to memory of 3592	404	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe	82
PID 3592 wrote to memory of 2508	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	86
PID 3592 wrote to memory of 2508	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	86
PID 3592 wrote to memory of 2508	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	86
PID 3592 wrote to memory of 4880	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	87
PID 3592 wrote to memory of 4880	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	87
PID 3592 wrote to memory of 4880	3592	25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp	87

C:\Users\Admin\AppData\Local\Temp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe
"C:\Users\Admin\AppData\Local\Temp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:404
- C:\Users\Admin\AppData\Local\Temp\is-7R36N.tmp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-7R36N.tmp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp" /SL5="$70062,5081230,54272,C:\Users\Admin\AppData\Local\Temp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:3592
- - C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments32.exe
    "C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2508
- - C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments32.exe
    "C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments32.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4880

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\is-6KC6F.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6KC6F.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7R36N.tmp\25ae92a255d78fbfb77626027792084da685609364c675944356806d8d19a93b.tmp

Filesize
677KB

MD5
a41c35089f6fa5bce33775f97150e521

SHA1
3e5e262867848ecc1d9dd8433aeb538fbc340e30

SHA256
c7365d77daa473eafe68fdc0c2233142561beafc084e2b4ec4e10332798261ae

SHA512
addd3f05fbaf0692b1e0bfc72d0e10f9b8467c4f12d5881b0b8f2ce2ee3de0f4c36352dd68bf77ee89623f05c61ae9b04e8325dcb63b7c032c04b82f1213c551

Download Submit
C:\Users\Admin\AppData\Local\Victoria Pigments\libeay32.dll

Filesize
1.9MB

MD5
876a839023b8f962a72d295da7495734

SHA1
62a7728679bc18784b1fbf1d013f7cece18cbec9

SHA256
a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

SHA512
e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

Download Submit
C:\Users\Admin\AppData\Local\Victoria Pigments\victoriapigments32.exe

Filesize
2.2MB

MD5
e5860592e2e547e9f5b04a155a87d777

SHA1
942b9ca75f6869d50dd1070c6db18a95592635ae

SHA256
24c012e4d63005288976c1d2f9ddd1abb79d6be1d4054a494a3c6081a68a1a35

SHA512
595262579ddfc63ec4469ff8f87e804dcfba0ac50ec93fda7b54ec430d5d51f242a45a863eaf1bee738cb36fc12acc61d0a3189e74351aa88eb36455b9cb8e10

Download Submit
memory/404-77-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/404-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/404-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2508-65-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/2508-66-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/2508-67-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/2508-71-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/3592-13-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/3592-78-0x0000000000400000-0x00000000004B8000-memory.dmp

Filesize
736KB

Download
memory/4880-79-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-95-0x0000000000760000-0x0000000000802000-memory.dmp

Filesize
648KB

Download
memory/4880-74-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-82-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-83-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-86-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-89-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-92-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-97-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-76-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-103-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-106-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-109-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-112-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-115-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-118-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-119-0x0000000000760000-0x0000000000802000-memory.dmp

Filesize
648KB

Download
memory/4880-120-0x0000000000760000-0x0000000000802000-memory.dmp

Filesize
648KB

Download
memory/4880-124-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download
memory/4880-127-0x0000000000400000-0x000000000062E000-memory.dmp

Filesize
2.2MB

Download

Analysis

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