socks5systemz | 101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca

General

Target

749325286628ce27401c098690ebc0d7.exe
Size

4.8MB
MD5

749325286628ce27401c098690ebc0d7
SHA1

b2d6201c6c10fe35e3064c501ebf0b41334c065d
SHA256

101d25afe6de26c8f611bf08e1eb08478e03206b3583c48bb20fa035d4d0ffca
SHA512

accc0f2186aba4be0df4869617b031ac6969f43958cc3e25343e05bef5aba741c2f9786dc79bceb2bf4a6cb85df5df927b1dfc680c923b88a66333ddafef3ea5
SSDEEP

98304:mqYKWcj3MsaT3u19x3VbfCEf/qe+oiVk/CdoyLwKYGjQ8Y5HJXDYZFZe:XYKWczdTlzCqYgCohKRQRN5QO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buvddib.com

http://buvddib.com/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8dff17c8ec91

http://buvddib.com/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12eab517aa5c96bd86ee958f4a805a8bbc896c58e713bc90c91036b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8ec959c33ce6b

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2684-92-0x00000000023B0000-0x0000000002452000-memory.dmp	family_socks5systemz
behavioral1/memory/2684-114-0x00000000023B0000-0x0000000002452000-memory.dmp	family_socks5systemz
behavioral1/memory/2684-115-0x00000000023B0000-0x0000000002452000-memory.dmp	family_socks5systemz

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

Processes:

749325286628ce27401c098690ebc0d7.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

2808 749325286628ce27401c098690ebc0d7.tmp
2704 moonvoiceassist32_64.exe
2684 moonvoiceassist32_64.exe

pid	process
2808	749325286628ce27401c098690ebc0d7.tmp
2704	moonvoiceassist32_64.exe
2684	moonvoiceassist32_64.exe

Loads dropped DLL 5 IoCs

Processes:

749325286628ce27401c098690ebc0d7.exe749325286628ce27401c098690ebc0d7.tmp

pid	process
1804	749325286628ce27401c098690ebc0d7.exe
2808	749325286628ce27401c098690ebc0d7.tmp
2808	749325286628ce27401c098690ebc0d7.tmp
2808	749325286628ce27401c098690ebc0d7.tmp
2808	749325286628ce27401c098690ebc0d7.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 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

Processes:

749325286628ce27401c098690ebc0d7.tmp

pid process

2808 749325286628ce27401c098690ebc0d7.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2808	749325286628ce27401c098690ebc0d7.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

749325286628ce27401c098690ebc0d7.exe749325286628ce27401c098690ebc0d7.tmp

description	pid	process	target process
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 1804 wrote to memory of 2808	1804	749325286628ce27401c098690ebc0d7.exe	749325286628ce27401c098690ebc0d7.tmp
PID 2808 wrote to memory of 2704	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2704	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2704	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2704	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2684	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2684	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2684	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe
PID 2808 wrote to memory of 2684	2808	749325286628ce27401c098690ebc0d7.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\749325286628ce27401c098690ebc0d7.exe
"C:\Users\Admin\AppData\Local\Temp\749325286628ce27401c098690ebc0d7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1804

C:\Users\Admin\AppData\Local\Temp\is-GNTI2.tmp\749325286628ce27401c098690ebc0d7.tmp
"C:\Users\Admin\AppData\Local\Temp\is-GNTI2.tmp\749325286628ce27401c098690ebc0d7.tmp" /SL5="$30132,4808638,54272,C:\Users\Admin\AppData\Local\Temp\749325286628ce27401c098690ebc0d7.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2808

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:2704

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:2684

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

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Downloads

\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
2.9MB

MD5
403fcb2628a9d2b8bf04e03f5b27eac7

SHA1
38e0c900bc31289d8c3194fb3b9f458290925e6d

SHA256
45f3121407742bf6c32e7a089a4b918f7850172238dbda30518645dedabbf164

SHA512
f9f1096eedb77386de0d20acd7534f145ce021a0242a0a541caf35317e72c78279a9776ace8fff8c7dcc527ab074a245a5d636c974621f5108426650df5f7da1

Download Submit
\Users\Admin\AppData\Local\Temp\is-GNTI2.tmp\749325286628ce27401c098690ebc0d7.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
\Users\Admin\AppData\Local\Temp\is-H8UI7.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-H8UI7.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1804-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1804-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1804-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2684-104-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-91-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-122-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-119-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-71-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-115-0x00000000023B0000-0x0000000002452000-memory.dmp

Filesize
648KB

Download
memory/2684-114-0x00000000023B0000-0x0000000002452000-memory.dmp

Filesize
648KB

Download
memory/2684-75-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-113-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-79-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-82-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-85-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-88-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-110-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-92-0x00000000023B0000-0x0000000002452000-memory.dmp

Filesize
648KB

Download
memory/2684-98-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-101-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2684-107-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2704-65-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2704-69-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2704-66-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/2808-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2808-76-0x0000000004200000-0x00000000044EF000-memory.dmp

Filesize
2.9MB

Download
memory/2808-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2808-63-0x0000000004200000-0x00000000044EF000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads