socks5systemz | 815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f

General

Target

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe
Size

4.9MB
MD5

e4f160d5a875eaf0507cf823b7420504
SHA1

1a9dc94c7807d726d8ebee79ec6dd6e255143909
SHA256

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f
SHA512

05c83d7e820e23ec5f3c482393280d6e58830f1a252895615b04f5092b2844141d0fbf144d924193af07fad2c531a4e0a7b1f55f31e90da22d8d5b3322400ba3
SSDEEP

98304:m9EwqN6LJfqQFcNCqaAipTw7ge3ZVb1fePK5TquDNy/HhG2P5Me:9wqN6LrFcCzXKZZ1fekTLD8JGI/

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bgbveih.com

http://bgbveih.com/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ee979a3a

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3724-84-0x0000000000A70000-0x0000000000B12000-memory.dmp	family_socks5systemz

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

Processes:

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

3732 815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
1364 moonvoiceassist32_64.exe
3724 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

pid process

3732 815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.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:

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

pid process

3732 815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

pid	process
3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
1364	moonvoiceassist32_64.exe
3724	moonvoiceassist32_64.exe

pid	process
3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp

description	pid	process	target process
PID 4880 wrote to memory of 3732	4880	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
PID 4880 wrote to memory of 3732	4880	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
PID 4880 wrote to memory of 3732	4880	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
PID 3732 wrote to memory of 1364	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe
PID 3732 wrote to memory of 1364	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe
PID 3732 wrote to memory of 1364	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe
PID 3732 wrote to memory of 3724	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe
PID 3732 wrote to memory of 3724	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe
PID 3732 wrote to memory of 3724	3732	815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe
"C:\Users\Admin\AppData\Local\Temp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4880

C:\Users\Admin\AppData\Local\Temp\is-0BHPE.tmp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0BHPE.tmp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp" /SL5="$60192,4896245,54272,C:\Users\Admin\AppData\Local\Temp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3732

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -i
3⤵
- Executes dropped EXE
PID:1364

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe" -s
3⤵
- Executes dropped EXE
PID:3724

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\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
3.1MB

MD5
be706b01a421e7c325a978d7d945cf8c

SHA1
8dd3d0477688704c5d703cbbb956a8bb7e3e5f10

SHA256
7532d9a33a9aa219b7abc736c780527d4f0c36302e38251617f8e463bb6fd83b

SHA512
ff45661b5f7eceb48a756b9107840077b58625d4a2f84e3acb7a64dc8fd2ed97d49c4be4c25b5e6fe4c9d3d01aa4bb401230a821cf7bdcbb8e1fa662feb39889

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0BHPE.tmp\815c265c42f5b5739bd5452fc7f510475e2f5c6e4b0a7859729a9148e2e7a73f.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
\Users\Admin\AppData\Local\Temp\is-CU5SJ.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1364-59-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/1364-60-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/1364-63-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-81-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-91-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-130-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-66-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-125-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-122-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-69-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-72-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-75-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-78-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-119-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-84-0x0000000000A70000-0x0000000000B12000-memory.dmp

Filesize
648KB

Download
memory/3724-86-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-116-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-94-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-97-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-100-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-103-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-107-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-110-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3724-113-0x0000000000400000-0x0000000000711000-memory.dmp

Filesize
3.1MB

Download
memory/3732-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3732-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4880-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4880-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4880-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

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