socks5systemz | 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd

General

Target

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
Size

4.8MB
MD5

8e277e7022265b11d4f9b4f2c0b051d2
SHA1

528ff960a2acc15625e5be70dfe78f7765d1a960
SHA256

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd
SHA512

9cb9d7674db284a2cf4cf397ad68c3c2efd2a540973c6fe51083c933325c2faef1e86e551af64902e763d8ddd6fd40c30f1c4d509242bcd472a395c5c28cc25b
SSDEEP

98304:mSUc9/UUccFNMHdS/fGM4ypm3mSUX7N3KhTfb0g:7phRFNQKfGMLgXUX7shjbz

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

buiajzd.com

http://buiajzd.com/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f771ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f8df918c5ea90

http://buiajzd.com/search/?q=67e28dd86f54a728120ffa1d7c27d78406abdd88be4b12eab517aa5c96bd86ef9d8245855a8bbc896c58e713bc90c91936b5281fc235a925ed3e54d6bd974a95129070b616e96cc92be20ea778c255bbe258b90d3b4eed3233d1626a8ff810c8ec93933ec86a

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1476-93-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz
behavioral1/memory/1476-118-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz
behavioral1/memory/1476-119-0x00000000022D0000-0x0000000002372000-memory.dmp	family_socks5systemz

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

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmpaudioconverter.exeaudioconverter.exe

pid process

1964 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
2972 audioconverter.exe
1476 audioconverter.exe

pid	process
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
2972	audioconverter.exe
1476	audioconverter.exe

Loads dropped DLL 6 IoCs

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

pid	process
2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.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 45.155.250.90
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:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

pid process

1964 035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp

description	pid	process	target process
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 2372 wrote to memory of 1964	2372	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
PID 1964 wrote to memory of 2972	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 2972	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 2972	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 2972	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 1476	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 1476	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 1476	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe
PID 1964 wrote to memory of 1476	1964	035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp	audioconverter.exe

C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe
"C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2372

C:\Users\Admin\AppData\Local\Temp\is-L29OO.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
"C:\Users\Admin\AppData\Local\Temp\is-L29OO.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp" /SL5="$500E0,4814186,54272,C:\Users\Admin\AppData\Local\Temp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1964

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:2972

C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\audioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:1476

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\Free Audio Converter\audioconverter.exe
Filesize
2.9MB

MD5
54b713718dd11ef2d4a28598ff7f3f92

SHA1
f2e2365c2c97febcc17630501a66946220c2218a

SHA256
09ece648ee63ff99a66fd767d1c582f93e4c6fafd6e38009c31681011669b3f5

SHA512
e14068fc698b99d44ab692e7d8335cdfd3872e4347cb518a995b0be9fb10a432d2b63553c604d0b203ea7e2f2a0233f40c4ffa13a392fdf1364913697bb7bb33

Download Submit
\Users\Admin\AppData\Local\Temp\is-EICV5.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-EICV5.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-L29OO.tmp\035dcf9053398a90a31dddeeef1c21f728a82078573daaac0b65baabf96973cd.tmp
Filesize
680KB

MD5
44b9ca6a625740ff4684e46b706c1079

SHA1
e1437bee59b5335ef6fe7b61ff815b5098f2e402

SHA256
a32a6913b656b5e99bccaae183f08024a2118372c86c4bc6a45e8ae6816f2831

SHA512
59738c2e69631c98aeb33c8c70fc0b85cc9f139d2fa462c03eee3d3c0ab94bf33d669f5ca50b3ae9b370805d446ed43985d711f0817fd228708045c269728a87

Download Submit
memory/1476-111-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-105-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-123-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-118-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/1476-117-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-114-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-99-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-72-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-108-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-119-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/1476-76-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-79-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-102-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-83-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-86-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-89-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-92-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/1476-93-0x00000000022D0000-0x0000000002372000-memory.dmp

Filesize
648KB

Download
memory/1964-80-0x0000000003B00000-0x0000000003DEB000-memory.dmp

Filesize
2.9MB

Download
memory/1964-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1964-63-0x0000000003B00000-0x0000000003DEB000-memory.dmp

Filesize
2.9MB

Download
memory/1964-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2372-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2372-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2372-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2972-69-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2972-66-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download
memory/2972-65-0x0000000000400000-0x00000000006EB000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads