socks5systemz | 5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f

General

Target

cbce10895aa435fa2807ee0253ca81bd.exe
Size

5.0MB
MD5

cbce10895aa435fa2807ee0253ca81bd
SHA1

88e74be5a02a4698d299a452b302068cbfc4aa4b
SHA256

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f
SHA512

1912f8d8770f1c5f9c946ca1a087f53d5e87d51dd6a934bbeda77af5b361c437cd1caa335e5d03759901ee0e02dc1d17a4acf1c1b09a18ac1aab02e132518927
SSDEEP

98304:mMySNAIcdttL9vzzPH9VbK48HxV1Z8iK9bm6cF/fx7B8t8Hay8jat:v/AImhvzrHPl8H1M9b6/VB8ST8jO

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

beobmhv.com

http://beobmhv.com/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8cf611c6eb93

http://beobmhv.com/search/?q=67e28dd86f5ff42d4509ac187c27d78406abdd88be4b12eab517aa5c96bd86ec928644825a8bbc896c58e713bc90c91836b5281fc235a925ed3e54d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8ed9c9a3dc969

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2592-95-0x0000000002660000-0x0000000002702000-memory.dmp	family_socks5systemz
behavioral1/memory/2592-117-0x0000000002660000-0x0000000002702000-memory.dmp	family_socks5systemz
behavioral1/memory/2592-118-0x0000000002660000-0x0000000002702000-memory.dmp	family_socks5systemz

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

Processes:

cbce10895aa435fa2807ee0253ca81bd.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

2180 cbce10895aa435fa2807ee0253ca81bd.tmp
2640 moonvoiceassist32.exe
2592 moonvoiceassist32.exe

pid	process
2180	cbce10895aa435fa2807ee0253ca81bd.tmp
2640	moonvoiceassist32.exe
2592	moonvoiceassist32.exe

Loads dropped DLL 5 IoCs

Processes:

cbce10895aa435fa2807ee0253ca81bd.execbce10895aa435fa2807ee0253ca81bd.tmp

pid	process
1756	cbce10895aa435fa2807ee0253ca81bd.exe
2180	cbce10895aa435fa2807ee0253ca81bd.tmp
2180	cbce10895aa435fa2807ee0253ca81bd.tmp
2180	cbce10895aa435fa2807ee0253ca81bd.tmp
2180	cbce10895aa435fa2807ee0253ca81bd.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:

cbce10895aa435fa2807ee0253ca81bd.tmp

pid process

2180 cbce10895aa435fa2807ee0253ca81bd.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2180	cbce10895aa435fa2807ee0253ca81bd.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

cbce10895aa435fa2807ee0253ca81bd.execbce10895aa435fa2807ee0253ca81bd.tmp

description	pid	process	target process
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 1756 wrote to memory of 2180	1756	cbce10895aa435fa2807ee0253ca81bd.exe	cbce10895aa435fa2807ee0253ca81bd.tmp
PID 2180 wrote to memory of 2640	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2640	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2640	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2640	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2592	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2592	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2592	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe
PID 2180 wrote to memory of 2592	2180	cbce10895aa435fa2807ee0253ca81bd.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\cbce10895aa435fa2807ee0253ca81bd.exe
"C:\Users\Admin\AppData\Local\Temp\cbce10895aa435fa2807ee0253ca81bd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1756

C:\Users\Admin\AppData\Local\Temp\is-UUTEM.tmp\cbce10895aa435fa2807ee0253ca81bd.tmp
"C:\Users\Admin\AppData\Local\Temp\is-UUTEM.tmp\cbce10895aa435fa2807ee0253ca81bd.tmp" /SL5="$70124,4941426,54272,C:\Users\Admin\AppData\Local\Temp\cbce10895aa435fa2807ee0253ca81bd.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2180

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -i
3⤵
- Executes dropped EXE
PID:2640

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -s
3⤵
- Executes dropped EXE
PID:2592

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.exe
Filesize
3.2MB

MD5
b0f378e6e78681b2a6ddf83bc21337ef

SHA1
101bc5784b4930820e06ed3d684dc2dac0897fcc

SHA256
b95c8e5a05e89670291994da9d79ecd726791edf0f703619aa26dda91db553c8

SHA512
e9791d3bdeaa227cf828d13c258beada6af702a0a14f42b29c2c48862aa5033372724f28da27b69b50b5b1286115b914ce2a2fb894492f70a540b87c70638605

Download Submit
\Users\Admin\AppData\Local\Temp\is-4E984.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-4E984.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-UUTEM.tmp\cbce10895aa435fa2807ee0253ca81bd.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
memory/1756-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1756-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1756-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2180-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2180-9-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2180-63-0x0000000003B30000-0x0000000003E63000-memory.dmp

Filesize
3.2MB

Download
memory/2180-79-0x0000000003B30000-0x0000000003E63000-memory.dmp

Filesize
3.2MB

Download
memory/2592-80-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-99-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-123-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-78-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-121-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-118-0x0000000002660000-0x0000000002702000-memory.dmp

Filesize
648KB

Download
memory/2592-83-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-86-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-91-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-92-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-95-0x0000000002660000-0x0000000002702000-memory.dmp

Filesize
648KB

Download
memory/2592-72-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-102-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-107-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-108-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-111-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-116-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2592-117-0x0000000002660000-0x0000000002702000-memory.dmp

Filesize
648KB

Download
memory/2640-65-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2640-66-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2640-70-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads