socks5systemz | 51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9

General

Target

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe
Size

4.8MB
MD5

386c7d06155d8754f0eeddf9a984eef2
SHA1

1613630666cb0ba426ad0acf0cb8a6d7ee0d2a4e
SHA256

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9
SHA512

5e2e1b8229e5e6026277b1630cc718592667aeef3603979ca0a08f137856f3ebed5765dd699107db0646ced40d8e2ffa539877272ab62b4ac52e179ef0f39f82
SSDEEP

98304:my5CT2EQsbOgvAi9VaFgWoTKOwTuKRygJlt4A5nG/C:1CT2Hgvbbm4JwSKRy+BVG/C

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bbuwnip.com

http://bbuwnip.com/search/?q=67e28dd86c0ca72e110aab177c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978f671ea771795af8e05c645db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a6f87fd12c6ee93

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2568-91-0x00000000021C0000-0x0000000002262000-memory.dmp	family_socks5systemz

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

Processes:

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

268 51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
2724 m4atomp3converter.exe
2568 m4atomp3converter.exe

pid	process
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
2724	m4atomp3converter.exe
2568	m4atomp3converter.exe

Loads dropped DLL 5 IoCs

Processes:

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp

pid	process
2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.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:

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp

pid process

268 51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp

description	pid	process	target process
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 2444 wrote to memory of 268	2444	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
PID 268 wrote to memory of 2724	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2724	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2724	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2724	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2568	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2568	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2568	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe
PID 268 wrote to memory of 2568	268	51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe
"C:\Users\Admin\AppData\Local\Temp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:2444

C:\Users\Admin\AppData\Local\Temp\is-DGJK8.tmp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
"C:\Users\Admin\AppData\Local\Temp\is-DGJK8.tmp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp" /SL5="$40016,4801606,54272,C:\Users\Admin\AppData\Local\Temp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:268

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -i
3⤵
- Executes dropped EXE
PID:2724

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe" -s
3⤵
- Executes dropped EXE
PID:2568

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

\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
2.9MB

MD5
98889915a7331404165b1b921af5c5e7

SHA1
1300f471cb455cf375eefc63c6f07ba955e14174

SHA256
cef231d56d9ba3b136f92be995e89d39dd4d08eae57a34e03bc762b658b195e9

SHA512
e6282b56925afcb7504ae2cc526964043ed0c1a6a10385ecae561dcc70345d8e5846ed2b2596a8a6469dba5cb9327fcc267c091c77172d269b56b69d4fc5e103

Download Submit
\Users\Admin\AppData\Local\Temp\is-C1C3T.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-C1C3T.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-DGJK8.tmp\51bb1e820aa2e4148973c854ddb8a322cccca0f4885fb40cb62e760feaf8e9d9.tmp
Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
memory/268-17-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/268-63-0x0000000004170000-0x000000000445C000-memory.dmp

Filesize
2.9MB

Download
memory/268-77-0x0000000004170000-0x000000000445C000-memory.dmp

Filesize
2.9MB

Download
memory/268-73-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2444-72-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2444-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2444-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2568-106-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-100-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-74-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-136-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-78-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-81-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-84-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-87-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-90-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-91-0x00000000021C0000-0x0000000002262000-memory.dmp

Filesize
648KB

Download
memory/2568-97-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-131-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-103-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-128-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-109-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-112-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-116-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-119-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-122-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2568-125-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2724-65-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2724-69-0x0000000000400000-0x00000000006EC000-memory.dmp

Filesize
2.9MB

Download
memory/2724-66-0x0000000000400000-0x00000000006EC000-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