socks5systemz | 8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751

General

Target

8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe
Size

4.2MB
MD5

bd5619236cab387b962511712631bbcd
SHA1

a9da579c8c916fdf9b56d023daa8538cef651802
SHA256

8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751
SHA512

18a5457f85b3d63bd4f161419e3c586984a01d806c6ec8bc7910a86ac7c4279c73a346ac4684a074b36f41c25dacfe859b12eede7b953700a8e5a31b64f574c4
SSDEEP

98304:CCVQKbMZFpONPy/CZR0RpodE3dqITMRPyPQ8DRza9EFnQxU:DVNYZFY1Z6odE3bMRPYFa9EFnQ6

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bbpymft.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ffd12c2ee919e39

http://bbpymft.com/search/?q=67e28dd86a5cf47e155fff1a7c27d78406abdd88be4b12eab517aa5c96bd86e9978f49875a8bbc896c58e713bc90c91836b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee979939cc6b9214

Signatures

Detect Socks5Systemz Payload 5 IoCs

resource	yara_rule
behavioral1/memory/4088-73-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz
behavioral1/memory/4088-74-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz
behavioral1/memory/4088-84-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz
behavioral1/memory/4088-97-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz
behavioral1/memory/4088-98-0x0000000000820000-0x00000000008C2000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 3 IoCs

pid	Process
348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp
4252	disksettings.exe
4088	disksettings.exe

Loads dropped DLL 3 IoCs

pid	Process
348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp
348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp
348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.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	141.98.234.31

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
348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 388 wrote to memory of 348	388	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe	87
PID 388 wrote to memory of 348	388	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe	87
PID 388 wrote to memory of 348	388	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe	87
PID 348 wrote to memory of 4252	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	90
PID 348 wrote to memory of 4252	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	90
PID 348 wrote to memory of 4252	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	90
PID 348 wrote to memory of 4088	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	91
PID 348 wrote to memory of 4088	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	91
PID 348 wrote to memory of 4088	348	8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp	91

C:\Users\Admin\AppData\Local\Temp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe
"C:\Users\Admin\AppData\Local\Temp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:388
- C:\Users\Admin\AppData\Local\Temp\is-18DVN.tmp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-18DVN.tmp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp" /SL5="$30230,4055316,54272,C:\Users\Admin\AppData\Local\Temp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:348
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -i
    3⤵
    - Executes dropped EXE
    PID:4252
- - C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe
    "C:\Users\Admin\AppData\Local\Disk Settings\disksettings.exe" -s
    3⤵
    - Executes dropped EXE
    PID:4088

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\Disk Settings\disksettings.exe

Filesize
2.3MB

MD5
4ec79976f44e5777455a54c6ab74f8f2

SHA1
dd87789edd30e39964cf3ab9944f982a67369457

SHA256
e860a1d0735dbeb771ffb16c606a4731c3709f4150db47607fe1aeecc35724ac

SHA512
82b2a64d9dc3b289363a28410f562f40b95cadb3d524ab083e76da4d92d4d0ce4942afcb4e726fee5cdf29b76adf82ac9031d88f2e44f533728548e032e5caa8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-18DVN.tmp\8a9b6c452db8aaf9d049df0a6459eaec013b7cb2ebf4a2340201a9ceb4d4a751.tmp

Filesize
680KB

MD5
7f7ddf7a29dd114108fb614440ae63a7

SHA1
8d4fa224fa4df3dca49f87014ff8e3bb0129a355

SHA256
ada083ade627aadda3c0811da0e422265b89055760b30f35de1527cba3878c38

SHA512
259a396430b7f602e7a4200dc30907ecd5f5af9d695db2f0fe75883c571d9ab1a729448dec82c91b4e21e995fccbd9fa489371fe1209132dbe26094631454986

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/348-6-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/348-56-0x00000000007A0000-0x00000000007A1000-memory.dmp

Filesize
4KB

Download
memory/348-54-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/388-53-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/388-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4088-84-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/4088-72-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-105-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-55-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-102-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-59-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-60-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-63-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-66-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-69-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-73-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/4088-52-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-74-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/4088-80-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-83-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-98-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/4088-87-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-90-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-93-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-96-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4088-97-0x0000000000820000-0x00000000008C2000-memory.dmp

Filesize
648KB

Download
memory/4252-44-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4252-45-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/4252-48-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing