socks5systemz | 6acdc2ff81a2dde2b8169a17aea8acf70ea5b39d742b4fcf86ce55bf80b15503

General

Target

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe
Size

4.8MB
MD5

3a3f2b6cf16df6e530ae030c3be307c2
SHA1

0fe3ab13d06626b1eceb30e1ed12eee04b5a5c0f
SHA256

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb
SHA512

aa3937e3c1ca6da3de8a21be3f5cecc0c366bbf952fb0395b9e489bdff3a3f83f9a4f9c339300b571e94a176f87db51620245a1006fe63715ec7735f1687fcb8
SSDEEP

98304:mpwE8fyZeFg0wBonhkqSZ7Zz31HinzB4CMkQjSeJBmTE:i1ZZeFg0vaZ7l31inaCt6mo

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ckhxzws.net

http://ckhxzws.net/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa45e8889b5e4fa9281ae978f171ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8afe15c2ee97

http://ckhxzws.net/search/?q=67e28dd86509f67a4206fe1b7c27d78406abdd88be4b12eab517aa5c96bd86ee958f4a805a8bbc896c58e713bc90c91036b5281fc235a925ed3e52d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8eb949e39cc6d

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2380-93-0x0000000002690000-0x0000000002732000-memory.dmp	family_socks5systemz
behavioral1/memory/2380-115-0x0000000002690000-0x0000000002732000-memory.dmp	family_socks5systemz
behavioral1/memory/2380-116-0x0000000002690000-0x0000000002732000-memory.dmp	family_socks5systemz

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

Processes:

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

2868 f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
2416 moonvoiceassist32.exe
2380 moonvoiceassist32.exe

pid	process
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
2416	moonvoiceassist32.exe
2380	moonvoiceassist32.exe

Loads dropped DLL 5 IoCs

Processes:

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exef92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp

pid	process
1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.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 91.211.247.248
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:

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp

pid process

2868 f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exef92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp

description	pid	process	target process
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 1848 wrote to memory of 2868	1848	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
PID 2868 wrote to memory of 2416	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2416	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2416	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2416	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2380	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2380	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2380	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe
PID 2868 wrote to memory of 2380	2868	f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe
"C:\Users\Admin\AppData\Local\Temp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1848

C:\Users\Admin\AppData\Local\Temp\is-8ATI7.tmp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
"C:\Users\Admin\AppData\Local\Temp\is-8ATI7.tmp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp" /SL5="$40150,4810418,54272,C:\Users\Admin\AppData\Local\Temp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2868

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:2416

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:2380

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.exe
Filesize
3.0MB

MD5
30d33bce1b301b63f9d1c3fc1215749c

SHA1
e36803796c312434ec1d75dc21f7021b63dfa412

SHA256
e8c6253775a4125b953b4c86a0f028d31e97af42ba5931dad8e4a6efc6850538

SHA512
3edec3ddfe6f14bc23f67973cd5c67c46ef6dbea1d440a91c42fba0a24d688b95c451af50604cabaf2f4645c175e0b75335638ea6eb65414098bac21019c7cb3

Download Submit
\Users\Admin\AppData\Local\Temp\is-3R994.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-3R994.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-8ATI7.tmp\f92a7231efb1a1b09a75a192c77ce4ef987aaf8e30461c6ebe87e4f1e5ab1cfb.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

Download Submit
memory/1848-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1848-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1848-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2380-105-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-92-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-123-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-120-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-72-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-116-0x0000000002690000-0x0000000002732000-memory.dmp

Filesize
648KB

Download
memory/2380-115-0x0000000002690000-0x0000000002732000-memory.dmp

Filesize
648KB

Download
memory/2380-76-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-114-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-80-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-83-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-86-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-89-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-111-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-93-0x0000000002690000-0x0000000002732000-memory.dmp

Filesize
648KB

Download
memory/2380-99-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-102-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2380-108-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2416-65-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2416-70-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2416-66-0x0000000000400000-0x000000000070B000-memory.dmp

Filesize
3.0MB

Download
memory/2868-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2868-77-0x0000000004220000-0x000000000452B000-memory.dmp

Filesize
3.0MB

Download
memory/2868-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2868-64-0x0000000004220000-0x000000000452B000-memory.dmp

Filesize
3.0MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads