socks5systemz | a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b

General

Target

a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
Size

4.1MB
MD5

e121298a3f3e2bc3f8c921396cbaac54
SHA1

1289acbe827d05aa9a10e9cabbed698ebe06b268
SHA256

a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b
SHA512

75e21e929e17c1ba8eebb5c4cefdf4fe76b7d9de9d940a50e7f6fa5f36a8d5b8b2cc8dcc3aff10f7aa48bc2618ccc940fe87ade45dc1fb5ff8955aa3ea3b6cdf
SSDEEP

98304:CaU7kJv7x9tTw2fp+6wUMVl2ieC3tQlDGgc/832kXQxU:C7WvPd3fp+6wHFQDciQ+

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

cclndtu.net

http://cclndtu.net/search/?q=67e28dd83e5aa079125baa1a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd12c3e797993a

Signatures

Detect Socks5Systemz Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3080-69-0x0000000000A80000-0x0000000000B22000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
4516	soundvolumeview.exe
3080	soundvolumeview.exe

Loads dropped DLL 1 IoCs

pid	Process
3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.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	flow	ioc	pid	Process
Destination IP	33	141.98.234.31	3080	soundvolumeview.exe

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

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolumeview.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	soundvolumeview.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1616 wrote to memory of 3168	1616	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	86
PID 1616 wrote to memory of 3168	1616	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	86
PID 1616 wrote to memory of 3168	1616	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe	86
PID 3168 wrote to memory of 4516	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	89
PID 3168 wrote to memory of 4516	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	89
PID 3168 wrote to memory of 4516	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	89
PID 3168 wrote to memory of 3080	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	90
PID 3168 wrote to memory of 3080	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	90
PID 3168 wrote to memory of 3080	3168	a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp	90

C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe
"C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1616
- C:\Users\Admin\AppData\Local\Temp\is-88H29.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-88H29.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp" /SL5="$60298,3928868,54272,C:\Users\Admin\AppData\Local\Temp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:3168
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:4516
- - C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe
    "C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:3080

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

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\SoundVolumeView\soundvolumeview.exe

Filesize
2.6MB

MD5
02253e468c223d8b662625a068388d29

SHA1
066a952ae171b6d4f3d62b19bf82dfe7f0063cb7

SHA256
551b87277f9bd71867c1de518b8a3b99ba3b7ad1c9a3700e5d829b70c2c1dae9

SHA512
032b9e8ec206bee0e4396490e08d01c8f2a515643e25113751b2b81e3fe01ebdedbc353ab5715403a94f3512a1c37c5c2054c4536c9c0bff4cbb923185cacde7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-88H29.tmp\a2fc29e11de24fb1347554e03aa1dbc0a4676e3ae8802afa0ae76c5094fe626b.tmp

Filesize
680KB

MD5
a8fa09b2a3abe18d8920164c486ef331

SHA1
e27944cd74d1ad2b23d5dddf4644e1a3dda4c82c

SHA256
c673576958e73def146739a94f9e79d5ec1e2a2a55f907562344433b2771e1db

SHA512
85460136c0dfdec9c75cb6d08562f00991702d083e8eedd3e5cba753917c0114718bcb73267b86923a3270b505368977125dfd5f55a204094262c0a30c8979f0

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-JBTL3.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1616-50-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1616-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1616-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3080-84-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-68-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-114-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-109-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-48-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-106-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-103-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-52-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-53-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-56-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-59-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-62-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-65-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-100-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-69-0x0000000000A80000-0x0000000000B22000-memory.dmp

Filesize
648KB

Download
memory/3080-75-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-78-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-81-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-97-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-87-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-90-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3080-94-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/3168-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3168-49-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4516-40-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/4516-39-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/4516-45-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download
memory/4516-43-0x0000000000400000-0x00000000006A5000-memory.dmp

Filesize
2.6MB

Download

Analysis

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