socks5systemz | 444b1c36d00ff24613da66f8665c1a0f66730ed4562fa128f493d8edf4a7fc44

General

Target

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe
Size

4.8MB
MD5

7d784b92dfbb63809de8072978d2d6ee
SHA1

9e8a96001d0adfdd95408fae907e29ee13e999b7
SHA256

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e
SHA512

6f3839315782b14d001aa990063e136e5af335da0087d275e94675ede860c22264972dcc84bba92a6baad8ed44cd238f76b60ff3333c608d0526857736dfc73f
SSDEEP

98304:mtEgasZWtVD1SHzM0GWI7uVtyUeAVOl/2w0UFq3WbhTNVVOMLjne:kEgZgXETMJWWuVC/VTQ36NG6K

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bbcumjv.com

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1444-87-0x0000000000A50000-0x0000000000AF2000-memory.dmp	family_socks5systemz

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

Processes:

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmpmoonvoiceassist32_64.exemoonvoiceassist32_64.exe

pid process

3628 6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
4792 moonvoiceassist32_64.exe
1444 moonvoiceassist32_64.exe
Loads dropped DLL 1 IoCs

Processes:

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

pid process

3628 6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
Unexpected DNS network traffic destination 3 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
Destination IP 152.89.198.214
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:

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

pid process

3628 6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

pid	process
3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
4792	moonvoiceassist32_64.exe
1444	moonvoiceassist32_64.exe

pid	process
3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

description	ioc
Destination IP	91.211.247.248
Destination IP	152.89.198.214
Destination IP	141.98.234.31

pid	process
3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp

description	pid	process	target process
PID 4472 wrote to memory of 3628	4472	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
PID 4472 wrote to memory of 3628	4472	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
PID 4472 wrote to memory of 3628	4472	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
PID 3628 wrote to memory of 4792	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe
PID 3628 wrote to memory of 4792	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe
PID 3628 wrote to memory of 4792	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe
PID 3628 wrote to memory of 1444	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe
PID 3628 wrote to memory of 1444	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe
PID 3628 wrote to memory of 1444	3628	6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp	moonvoiceassist32_64.exe

C:\Users\Admin\AppData\Local\Temp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe
"C:\Users\Admin\AppData\Local\Temp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4472

C:\Users\Admin\AppData\Local\Temp\is-FS5J0.tmp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-FS5J0.tmp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp" /SL5="$501CC,4793562,54272,C:\Users\Admin\AppData\Local\Temp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3628

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:4792

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:1444

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_64.exe
Filesize
2.9MB

MD5
e41be44025932c9531927c4a567c6ae3

SHA1
9737c2ed269acf17a638b2d0a9ce7449339809e7

SHA256
a912528952e963166a50b8c214e54e6818bbc7d55edf148b399db94378c39dcb

SHA512
bc5ec6ad663434eb2a3bc47154177518353848c2280cb1807e28ee57bf0d2979dc1e199408a568a3f84bfacb11e1461ca6057c0038d8b306418df4d4fbf6dfca

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-FS5J0.tmp\6072851f5bb88b54feef9c7aae9a016cfebe3ec37a794791960e6bac46c2c71e.tmp
Filesize
680KB

MD5
895d982b558dbe81e0d8d31e818f766e

SHA1
27d9e61b8edaf48db4c519be05f0f4ea33900a7a

SHA256
3c0328c6c8c37a3e81cb28c46eeb4c98f033eaf28326903ac6e7204d23928cfb

SHA512
4ab3f51fe1f4b7ce5bd6e21518de1ebae7b631bb4a968a424efff6db1a53755853478db108547492a2784c55f1d934f776388232f556880f682e401c45b7db97

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-RN5U0.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/1444-89-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-75-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-115-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-112-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-109-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-106-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-103-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-66-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-68-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-100-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-97-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-71-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-74-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-94-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-78-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-81-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-84-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/1444-87-0x0000000000A50000-0x0000000000AF2000-memory.dmp

Filesize
648KB

Download
memory/3628-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3628-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4472-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4472-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4472-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4792-64-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/4792-61-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/4792-60-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download
memory/4792-59-0x0000000000400000-0x00000000006EF000-memory.dmp

Filesize
2.9MB

Download

Analysis

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