socks5systemz | 04c039e7f0f7e9b17632e97ce2171f65948e8ee828d9e39e205a16a3322db79f

General

Target

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.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

csegrad.net

http://csegrad.net/search/?q=67e28dd83f08f52f150eab187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978f471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff715c1e69c9839

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4532-86-0x00000000009A0000-0x0000000000A42000-memory.dmp	family_socks5systemz

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

Processes:

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

2996 5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
392 moonvoiceassist32.exe
4532 moonvoiceassist32.exe
Loads dropped DLL 1 IoCs

Processes:

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

pid process

2996 5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.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:

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

pid process

2996 5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

pid	process
2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
392	moonvoiceassist32.exe
4532	moonvoiceassist32.exe

pid	process
2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp

description	pid	process	target process
PID 3320 wrote to memory of 2996	3320	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
PID 3320 wrote to memory of 2996	3320	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
PID 3320 wrote to memory of 2996	3320	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
PID 2996 wrote to memory of 392	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 392	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 392	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 4532	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 4532	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 4532	2996	5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe
"C:\Users\Admin\AppData\Local\Temp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3320

C:\Users\Admin\AppData\Local\Temp\is-V7CIS.tmp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
"C:\Users\Admin\AppData\Local\Temp\is-V7CIS.tmp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp" /SL5="$100052,4941426,54272,C:\Users\Admin\AppData\Local\Temp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.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.exe
"C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe" -i
3⤵
- Executes dropped EXE
PID:392

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:4532

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=1444,i,3549704109630749084,1975543916261970610,262144 --variations-seed-version --mojo-platform-channel-handle=4172 /prefetch:8
1⤵
PID:1948

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

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Moon Voice Assist\moonvoiceassist32.exe
Filesize
3.2MB

MD5
b0f378e6e78681b2a6ddf83bc21337ef

SHA1
101bc5784b4930820e06ed3d684dc2dac0897fcc

SHA256
b95c8e5a05e89670291994da9d79ecd726791edf0f703619aa26dda91db553c8

SHA512
e9791d3bdeaa227cf828d13c258beada6af702a0a14f42b29c2c48862aa5033372724f28da27b69b50b5b1286115b914ce2a2fb894492f70a540b87c70638605

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RS4Q3.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-V7CIS.tmp\5cbd43045b2e4418fb9f6a39aa5da0a5d5e1319b2bc3cc79b50eec9713fb434f.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
memory/392-59-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/392-60-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/392-63-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/392-65-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/2996-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2996-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3320-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3320-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3320-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4532-74-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-88-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-68-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-77-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-80-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-83-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-86-0x00000000009A0000-0x0000000000A42000-memory.dmp

Filesize
648KB

Download
memory/4532-71-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-93-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-96-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-99-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-102-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-105-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-108-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-112-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download
memory/4532-115-0x0000000000400000-0x0000000000733000-memory.dmp

Filesize
3.2MB

Download

Analysis

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