socks5systemz | 845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a

General

Target

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe
Size

4.7MB
MD5

8e12bcc0e1315514b61b865496c55e2c
SHA1

d741f36c98123d0bbb6d4ca15433110a554ea59b
SHA256

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a
SHA512

0a9d23851b4d467e24f08aa41749df7f5e4400cdc91626662472480e909a5c1550d14f85e73a7b013fa9ecf6ee717c715e21cb6f8fbad9da8b7bf5374e9bfcba
SSDEEP

98304:mChizKW8o00OjB/xu62bl2hmKK03+pZ+xCkJ56slMzvCE7VZ7woPT:7izKW8o00OdA6ol2qpoX/lMWAhPT

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bnqjyve.com

http://bnqjyve.com/search/?q=67e28dd8690ba728400aae4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978f271ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ee97993e

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1632-84-0x0000000000970000-0x0000000000A12000-memory.dmp	family_socks5systemz

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

Processes:

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmpfreeaudioconverter.exefreeaudioconverter.exe

pid process

4532 845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
228 freeaudioconverter.exe
1632 freeaudioconverter.exe
Loads dropped DLL 1 IoCs

Processes:

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

pid process

4532 845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.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:

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

pid process

4532 845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

pid	process
4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
228	freeaudioconverter.exe
1632	freeaudioconverter.exe

pid	process
4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp

description	pid	process	target process
PID 4676 wrote to memory of 4532	4676	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
PID 4676 wrote to memory of 4532	4676	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
PID 4676 wrote to memory of 4532	4676	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
PID 4532 wrote to memory of 228	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe
PID 4532 wrote to memory of 228	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe
PID 4532 wrote to memory of 228	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe
PID 4532 wrote to memory of 1632	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe
PID 4532 wrote to memory of 1632	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe
PID 4532 wrote to memory of 1632	4532	845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp	freeaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe
"C:\Users\Admin\AppData\Local\Temp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4676

C:\Users\Admin\AppData\Local\Temp\is-G3K39.tmp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
"C:\Users\Admin\AppData\Local\Temp\is-G3K39.tmp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp" /SL5="$601D6,4723448,54272,C:\Users\Admin\AppData\Local\Temp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4532

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:228

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
"C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:1632

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Free Audio Converter\freeaudioconverter.exe
Filesize
3.0MB

MD5
6d11f7e1bcf489debe1064742c39e8ce

SHA1
2cc045bf830a23fcb953478189bacecad266f019

SHA256
5a78c5d969752bc2524941d18a4bc569e4570f17399ba01f418b80ea5f987b16

SHA512
57c07b81f026a874c16e1c0c996d9f890a4f7b8f909e49bbeac1080f10a5180822c5373280d03de9de2b1f37cc9a7e506335e60c6e4aa85a09701e7b50430b3e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-G3K39.tmp\845387c025c160ad4423d19b436fe11d67281901088d5990249f29131108228a.tmp
Filesize
680KB

MD5
f519683b3c418feee49361b3411d8c3d

SHA1
f981468acbf6b3e1d081a52203f7e3f017fcafe7

SHA256
4fc60883a82f58b3a798be19bd6a25592631ac3ccb23af3b1a95c41dab65af4a

SHA512
db0e3a2363bb9433cc57d3da42bfb901f0ed128aad2297a88cca1dae650f69a438ef4f7634b945568bb99f59bc587eb698f08cf8dc8162808ac8575fa280c805

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/228-59-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/228-64-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/228-60-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-78-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-94-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-130-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-125-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-122-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-69-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-72-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-75-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-119-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-81-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-84-0x0000000000970000-0x0000000000A12000-memory.dmp

Filesize
648KB

Download
memory/1632-86-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-91-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-116-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-97-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-100-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-103-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-106-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-110-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/1632-113-0x0000000000400000-0x00000000006FB000-memory.dmp

Filesize
3.0MB

Download
memory/4532-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4532-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4676-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4676-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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