socks5systemz | 38d9db44449426c05ea2ff011e9670a0e303acfeb5dc97c552385d352a4d96ac

General

Target

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe
Size

4.9MB
MD5

a0beeee56cf28926d870b5b4c11bd74d
SHA1

97046dd1c0581f774179be4abfa5e337f848b20c
SHA256

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339
SHA512

07e916601ac31b914cede30130500032ef380120c18a97a5f32bbd7bd40992f5c151ded1fb1bda43913248c4e4ea7eec9673c361dfd6ec972299d659b98b5a7c
SSDEEP

98304:m1Tl9IFMASPUrPJwXax8bFbmyRvpCrvEdwlXfRdAITlfhln24LOMzG9jv4kOFCe:2TcFM78qkAFbvVdqPR+ITlfrdSMa9jv0

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bfuiufo.com

http://bfuiufo.com/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978a071ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8afe16c3e697

http://bfuiufo.com/search/?q=67e28dd86554fa2a495aa4197c27d78406abdd88be4b12eab517aa5c96bd86e596824996148ab2865b77f80ebad9c50f7cb63037ed2ab423a4654383ba915d911ec07bb606a0708720fa11b861c353baf51aba1e7242fa7023cc366689fe19c4ee929932cf

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2412-92-0x00000000026E0000-0x0000000002782000-memory.dmp	family_socks5systemz
behavioral1/memory/2412-114-0x00000000026E0000-0x0000000002782000-memory.dmp	family_socks5systemz
behavioral1/memory/2412-115-0x00000000026E0000-0x0000000002782000-memory.dmp	family_socks5systemz

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

Processes:

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

2996 3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
2476 moonvoiceassist32_64.exe
2412 moonvoiceassist32_64.exe

pid	process
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
2476	moonvoiceassist32_64.exe
2412	moonvoiceassist32_64.exe

Loads dropped DLL 5 IoCs

Processes:

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp

pid	process
2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.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 152.89.198.214
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:

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp

pid process

2996 3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp

description	pid	process	target process
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2924 wrote to memory of 2996	2924	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
PID 2996 wrote to memory of 2476	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2476	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2476	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2476	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2412	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2412	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2412	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe
PID 2996 wrote to memory of 2412	2996	3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe
"C:\Users\Admin\AppData\Local\Temp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2924

C:\Users\Admin\AppData\Local\Temp\is-31FP2.tmp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
"C:\Users\Admin\AppData\Local\Temp\is-31FP2.tmp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp" /SL5="$30130,4843166,54272,C:\Users\Admin\AppData\Local\Temp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2996

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:2476

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:2412

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32_64.exe
Filesize
3.0MB

MD5
e11a138fe16de219a9e4f8680afdc6fa

SHA1
cb47d16cc94e5ff6b0d806602774957d909a3d6c

SHA256
a10199e7f4246e38b6af6dce4fee51cb190f83130ef891c26648318f84a60963

SHA512
d92fd6a0531c8cd75dcb2d991f7b79d548f93950e6fd2b7e0fe9177094d417902ec75cf93b80a2710eeb5cc779927c8238c5f907b4bc832fd0e1717c8b9bf62a

Download Submit
\Users\Admin\AppData\Local\Temp\is-31FP2.tmp\3142d3d70a3cf61573d27d759087dfbef92a102ed37f8c6c15c348df19a55339.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
\Users\Admin\AppData\Local\Temp\is-BFAJ6.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-BFAJ6.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2412-110-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-104-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-122-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-115-0x00000000026E0000-0x0000000002782000-memory.dmp

Filesize
648KB

Download
memory/2412-114-0x00000000026E0000-0x0000000002782000-memory.dmp

Filesize
648KB

Download
memory/2412-113-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-98-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-71-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-107-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-119-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-75-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-78-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-101-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-82-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-85-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-88-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-91-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2412-92-0x00000000026E0000-0x0000000002782000-memory.dmp

Filesize
648KB

Download
memory/2476-65-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2476-69-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2476-66-0x0000000000400000-0x00000000006FF000-memory.dmp

Filesize
3.0MB

Download
memory/2924-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2924-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2924-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2996-79-0x0000000004110000-0x000000000440F000-memory.dmp

Filesize
3.0MB

Download
memory/2996-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2996-64-0x0000000004110000-0x000000000440F000-memory.dmp

Filesize
3.0MB

Download
memory/2996-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads