socks5systemz | 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7

General

Target

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
Size

4.8MB
MD5

a1f7e8d69f54697f9e4fea2617c6ad13
SHA1

5bdda2a37694e680cded193b94d102c949729dc5
SHA256

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7
SHA512

06a64d15e608473c1023dc193d1996c71daa2eae6540d45019a353dd3d6c220e52685e7143b21382f41a944dedd5a39ca966f51a1adfb94cd8947a9c55e2b9fc
SSDEEP

98304:mMWPo/89J0L3BFN3vlih5FOvH3myAmLoL+61vEV6Le0g5KqDIV:vWPo/9xFN9ifFOPCa72g5LIV

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bhozonf.com

http://bhozonf.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa49e8889b5e4fa9281ae978fe71ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8df719c1e797

http://bhozonf.com/search/?q=67e28dd8690cfb204406a51a7c27d78406abdd88be4b12eab517aa5c96bd86e5908f4e96148ab2865b77f80ebad9c10f7cb63037ed2ab423a43b4383ba915d911ec07bb606a0708720fa11b861c353baf51aba1e7242fa7023cc366689fe19c3e79d9b33cf

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2508-92-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz
behavioral1/memory/2508-115-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz
behavioral1/memory/2508-114-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz

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

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmpmoonvoiceassist32.exemoonvoiceassist32.exe

pid process

2996 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
2780 moonvoiceassist32.exe
2508 moonvoiceassist32.exe

pid	process
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
2780	moonvoiceassist32.exe
2508	moonvoiceassist32.exe

Loads dropped DLL 5 IoCs

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

pid	process
2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.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:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

pid process

2996 275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp

description	pid	process	target process
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2136 wrote to memory of 2996	2136	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
PID 2996 wrote to memory of 2780	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2780	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2780	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2780	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2508	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2508	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2508	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe
PID 2996 wrote to memory of 2508	2996	275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp	moonvoiceassist32.exe

C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe
"C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2136

C:\Users\Admin\AppData\Local\Temp\is-SUI9N.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
"C:\Users\Admin\AppData\Local\Temp\is-SUI9N.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp" /SL5="$30098,4833272,54272,C:\Users\Admin\AppData\Local\Temp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.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:2780

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:2508

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
3.1MB

MD5
8c1bcd4ea15a92d503e3ba1166f1e1fd

SHA1
0acd32778724f17604c2c4384faa10d605e261c5

SHA256
fc61fec05a67f02cb2c014a2257b1cae57bf623cf3a863b98310f9091a6455b2

SHA512
c4ce7e4f5d15e63000d89fdefbd31988d825dfc96f8c6b090b0eb2acbdc676d3541a27abd05dbfe8863b30d3cb1413b171c764c5749db504bedfbc2973c26697

Download Submit
\Users\Admin\AppData\Local\Temp\is-SUI9N.tmp\275cf7706f9d5d49cbcb52032850b1995211b81438257b00582040831ced93d7.tmp
Filesize
680KB

MD5
b69bf30e5f252cfcf7d82c84f8374a82

SHA1
4730c8a8a06df84e640f6ebc2aaa6f1236405f04

SHA256
d84b7d9a290803b0f334562ef81c1048c271d37fb9bc2d819fce473f26cb364b

SHA512
278be468edc57b6774c81755b8334eb9084eb683eeedc7d7537e6b6fdc2c104ba5392e98853dcd4e8ae052e7ca92a880b34b10c46096cfc2bc5034a15e46e52a

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/2136-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2136-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2136-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2508-104-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-91-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-122-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-119-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-71-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-114-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/2508-115-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/2508-75-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-113-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-79-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-82-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-85-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-88-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-110-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-92-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/2508-98-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-101-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2508-107-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2780-65-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2780-69-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2780-66-0x0000000000400000-0x0000000000718000-memory.dmp

Filesize
3.1MB

Download
memory/2996-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2996-64-0x00000000041E0000-0x00000000044F8000-memory.dmp

Filesize
3.1MB

Download
memory/2996-76-0x00000000041E0000-0x00000000044F8000-memory.dmp

Filesize
3.1MB

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