socks5systemz | 32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168

General

Target

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe
Size

4.6MB
MD5

df9a7040f5847c6c80b66890bdc18fd5
SHA1

860ad7a9171f1e405d6e679016ef11c5b1ebbeb7
SHA256

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168
SHA512

a68a4749e2225c927f02a45334c55c997cf228037c62b8185257f8555f005d7787112931a93911e7a3ac5fe1d1d948f61cbb7411f8958933b06cd4f042024e90
SSDEEP

98304:muiIZFQkSXSH0LFm6alaly8Zzf326yJUr5sr19GDjtALLowPdEwXizF:oIZ+kTKmXag2rZ5c19ajtALLrVK

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bfuwuag.com

http://bfuwuag.com/search/?q=67e28dd8685af379125bfd4e7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c1e7939d3d

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4320-85-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmpvirtualsoundcard.exevirtualsoundcard.exe

pid process

2128 32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
3120 virtualsoundcard.exe
4320 virtualsoundcard.exe
Loads dropped DLL 1 IoCs

Processes:

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

pid process

2128 32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
Unexpected DNS network traffic destination 1 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

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

Processes:

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

pid process

2128 32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

pid	process
2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
3120	virtualsoundcard.exe
4320	virtualsoundcard.exe

pid	process
2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp

description	pid	process	target process
PID 4296 wrote to memory of 2128	4296	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
PID 4296 wrote to memory of 2128	4296	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
PID 4296 wrote to memory of 2128	4296	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
PID 2128 wrote to memory of 3120	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe
PID 2128 wrote to memory of 3120	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe
PID 2128 wrote to memory of 3120	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe
PID 2128 wrote to memory of 4320	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe
PID 2128 wrote to memory of 4320	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe
PID 2128 wrote to memory of 4320	2128	32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp	virtualsoundcard.exe

C:\Users\Admin\AppData\Local\Temp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe
"C:\Users\Admin\AppData\Local\Temp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4296

C:\Users\Admin\AppData\Local\Temp\is-0E7VV.tmp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0E7VV.tmp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp" /SL5="$60148,4608184,54272,C:\Users\Admin\AppData\Local\Temp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2128

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe" -i
3⤵
- Executes dropped EXE
PID:3120

C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
"C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.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\Temp\is-0E7VV.tmp\32c3a85f7fe86558307ec696290e99d33e0f4e552ea2036e83ea52968ede5168.tmp
Filesize
680KB

MD5
2c9ec59f4f0ec997951b3bcf2dae943f

SHA1
bf8cf3957867023f8f3a3494a9cf873f48da4628

SHA256
c8f228ac4927de36a1a96e75c025094df102b39385ac0abf1a51ae54d0b4d7a4

SHA512
2b9b89143be87d15b86b6d105f658d9d296f74d712a793d705f6f2e23f46de1d8ad4842e04f5811dcf0020ab78a09cda966a0b164419611d96f592c0c5054e8e

Download Submit
C:\Users\Admin\AppData\Local\Virtual Sound Card\virtualsoundcard.exe
Filesize
2.6MB

MD5
c145ec37ae851694e4960fc7f3e7c8a7

SHA1
584977dad1577ac43cefd38752e19b8a5baff131

SHA256
c2bcb03b8f2110afc95598d42d581667e208824adec38b5fa3fd7887cfb61de4

SHA512
17f976d00f327a736a43910abfff9ea9d9f8a204d99091aefb98570fbb0ab3898c478a0c2acab65622831ab17a220fbe2ca110cac601862d634c3b960412229e

Download Submit
\Users\Admin\AppData\Local\Temp\is-U34FD.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2128-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2128-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3120-59-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/3120-60-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/3120-64-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4296-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4296-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4296-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4320-82-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-101-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-73-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-76-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-79-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-66-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-85-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/4320-87-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-92-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-95-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-98-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-70-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-104-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-107-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-111-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-114-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-117-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-120-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-123-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-126-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download
memory/4320-131-0x0000000000400000-0x00000000006A8000-memory.dmp

Filesize
2.7MB

Download

Analysis

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