socks5systemz | 945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673

General

Target

945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe
Size

5.8MB
MD5

875191f204d65fba87578811a903b55c
SHA1

f5f246da6aa53095f3fd1cc5b798af0f626464f6
SHA256

945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673
SHA512

18319a7dac083bbacaff0d23e6d04c2f45d1af1655830e063102b70789c8ef065e824dfbc2d5073edb7884326faefdda813cb0bd7135e57722d9b383f65ef84b
SSDEEP

98304:mat5MY7lL4fOoffsRGRS2PJrHKLQ/wAzRQwLn368K3BVKQI+fkrYtg91qSe/fC:n5MqBeO+SwJWAza1RVw+fGv1unC

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxeungo.com

http://bxeungo.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef9c9e3e

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4320-90-0x0000000000910000-0x00000000009B2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp
876	svomediaplayer.exe
4320	svomediaplayer.exe

Loads dropped DLL 3 IoCs

pid	Process
2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp
2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp
2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.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
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
2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2536	2520	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe	73
PID 2520 wrote to memory of 2536	2520	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe	73
PID 2520 wrote to memory of 2536	2520	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe	73
PID 2536 wrote to memory of 876	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	74
PID 2536 wrote to memory of 876	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	74
PID 2536 wrote to memory of 876	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	74
PID 2536 wrote to memory of 4320	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	75
PID 2536 wrote to memory of 4320	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	75
PID 2536 wrote to memory of 4320	2536	945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp	75

C:\Users\Admin\AppData\Local\Temp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe
"C:\Users\Admin\AppData\Local\Temp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2520
- C:\Users\Admin\AppData\Local\Temp\is-8D5V2.tmp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-8D5V2.tmp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp" /SL5="$5023A,5810257,54272,C:\Users\Admin\AppData\Local\Temp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:2536
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
    3⤵
    - Executes dropped EXE
    PID:876
- - C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
    "C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4320

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\SVO Media Player\svomediaplayer.exe

Filesize
3.2MB

MD5
72a10f0b2eb694fddafc4e2b1206baed

SHA1
3fc309312cbb308c717ad5d8b2cc09a9a181ca8b

SHA256
4d2e77d5a228541339b64312154a611389ca39851ebd77194cfdf2336e15bcee

SHA512
6cee2fdbe2e3f21707921eb7fea58652253be49375260a203a2d0015fbc08427d0cd7e17be671f6c3601e1f2965b90bd863e80ffc4a11c2fdfb3fb47bd250443

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8D5V2.tmp\945103d43a3b4db2fdded297ec9625e54f4d7f494aeb27280e133bac22389673.tmp

Filesize
680KB

MD5
e6d2fc7b9b3ceccedcf57875330a8ff1

SHA1
7bc2a4e40e24b2c0d130883b7255a97cdd4e1e6f

SHA256
001f671b1a90209f7133c55c809be8fe96797c89bebcce04aab5e846d9c91cc3

SHA512
0d5809e67459ce5eae974f11428fe5fc124f52d7532528d5952dca17b29d6941a7b1f31e04fbcdc62e86f6186586efb559cfeaca054a7d05c77461d31455ac7f

Download Submit
\Users\Admin\AppData\Local\Temp\is-5AEMB.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-5AEMB.tmp\_isetup\_isdecmp.dll

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/876-65-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/876-66-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/876-70-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/2520-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2520-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2520-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2536-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2536-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4320-87-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-103-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-81-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-84-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-75-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-90-0x0000000000910000-0x00000000009B2000-memory.dmp

Filesize
648KB

Download
memory/4320-92-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-97-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-100-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-78-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-106-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-109-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-112-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-116-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-119-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-122-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-125-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-128-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-131-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download
memory/4320-136-0x0000000000400000-0x000000000072D000-memory.dmp

Filesize
3.2MB

Download

Analysis

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