socks5systemz | 880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b

General

Target

880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe
Size

5.2MB
MD5

aa93e79b9892030e6c18b65348e39767
SHA1

caad6365235bd3bdd701c8677055c8f7718f8936
SHA256

880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b
SHA512

1e52ceb64e8c19e0c0a1054023fb6b312333c376d0142c503e6ad42a76dd01b2d7d7d4867151ba12aed46e86808f93e043af72be6a8b7537fc222ad71c6a15fb
SSDEEP

98304:mQ0WoVu6uP43drU9gZQIgbVFJ7x1POgpdh6wv5kRoOPTJp+r7Tl8oxZE6J7ODPZR:v0WfefSFJ35p3Pv5ej+nTeiE6cDPZ60v

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bhmpdur.com

http://bhmpdur.com/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ee8889b5e4fa9281ae978a571ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff712c7ea9c9b3c

http://bhmpdur.com/search/?q=67e28dd86c5af52d4607af197c27d78406abdd88be4b12eab517aa5c96bd86e89d8545835a8bbc896c58e713bc90c91b36b5281fc235a925ed3e06d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d993cc8669711

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/1804-86-0x0000000002570000-0x0000000002612000-memory.dmp	family_socks5systemz
behavioral2/memory/1804-110-0x0000000002570000-0x0000000002612000-memory.dmp	family_socks5systemz
behavioral2/memory/1804-109-0x0000000002570000-0x0000000002612000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
1832	m4atomp3converter.exe
1804	m4atomp3converter.exe

Loads dropped DLL 1 IoCs

pid	Process
2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.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
2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4708 wrote to memory of 2244	4708	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe	77
PID 4708 wrote to memory of 2244	4708	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe	77
PID 4708 wrote to memory of 2244	4708	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe	77
PID 2244 wrote to memory of 1832	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	78
PID 2244 wrote to memory of 1832	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	78
PID 2244 wrote to memory of 1832	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	78
PID 2244 wrote to memory of 1804	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	79
PID 2244 wrote to memory of 1804	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	79
PID 2244 wrote to memory of 1804	2244	880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp	79

C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe
"C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4708
- C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp" /SL5="$40236,5197306,54272,C:\Users\Admin\AppData\Local\Temp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2244
- - 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:1832
- - 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:1804

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\M4A to MP3 Free Converter\m4atomp3converter.exe

Filesize
3.3MB

MD5
5997070ef08734a59ebf7474233c2b55

SHA1
7938bf5eb8609c848d31ca073ece1f61a9fecf32

SHA256
9c30b95948d70ff3b61fdd049a63106b05dd1185fbc768cbf168dd99e5daecfd

SHA512
ef9c98a5a9012622bb90bfe97ee96cde6e24ce9edbeffde496f64f852e47e97183762e65254c854345e80b33b7df46c566211122d94cedc7668359d1e544bdde

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4RM5V.tmp\880956fc69d83ad44a43a9e4ca97b1540f6a312e5eafc32a75ce19ab33842c9b.tmp

Filesize
680KB

MD5
283da5c763c54b41092d9fe0d244b491

SHA1
d5e6a5b76a18c5a1d68244f2c3697bd8881fcf03

SHA256
339d2ff372992255baddd6d21cc15045b42780b25d251f570480e1aacdd00ad9

SHA512
306815b5fd5c387ffd9705097271edf5851cee7c28d1bc707813ce26714e8f722b8a34f73c43903ab6e7303dafc6ab6fa48262e487d86124c037879618cbd45a

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CDKVS.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1804-96-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-80-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-117-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-114-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-109-0x0000000002570000-0x0000000002612000-memory.dmp

Filesize
648KB

Download
memory/1804-110-0x0000000002570000-0x0000000002612000-memory.dmp

Filesize
648KB

Download
memory/1804-108-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-68-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-105-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-102-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-71-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-74-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-77-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-99-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-83-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-86-0x0000000002570000-0x0000000002612000-memory.dmp

Filesize
648KB

Download
memory/1804-88-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1804-93-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1832-63-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1832-65-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1832-60-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/1832-59-0x0000000000400000-0x0000000000751000-memory.dmp

Filesize
3.3MB

Download
memory/2244-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2244-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4708-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4708-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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