socks5systemz | d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042

General

Target

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe
Size

5.2MB
MD5

5d5be483cacfa90d0e01eee3a79e0793
SHA1

a1e7b96ac6746d3a0be713a724f0323bf579f3bc
SHA256

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042
SHA512

e90694230854a8af72fa797d577a28c1b17ac11d33cdf89bd679f7e09b46a808c5ccbcd2f95aae51ef72abaf43a14b127ba4f93387daab9f8ad5446f4ceb4960
SSDEEP

98304:mvXyDHJpzLnMbEauFeQBHet+XdQUemHbvhCsVvDtwQTP2L5lyvk5PiRr8rN1VPXW:+YppzAI/wGHHFHdVBwQm5ly0qRrENDNU

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bxpjvqn.com

http://bxpjvqn.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ae8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608ff712c9ef979832

http://bxpjvqn.com/search/?q=67e28dd83954f07a4008f8497c27d78406abdd88be4b12eab517aa5c96bd86e895834c845a8bbc896c58e713bc90c91f36b5281fc235a925ed3e5cd6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7ee9d9932cd6d941f

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/5028-86-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz
behavioral1/memory/5028-109-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz
behavioral1/memory/5028-110-0x0000000000830000-0x00000000008D2000-memory.dmp	family_socks5systemz

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

Processes:

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmpm4atomp3converter.exem4atomp3converter.exe

pid process

4812 d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
464 m4atomp3converter.exe
5028 m4atomp3converter.exe
Loads dropped DLL 1 IoCs

Processes:

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

pid process

4812 d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.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:

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

pid process

4812 d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

pid	process
4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
464	m4atomp3converter.exe
5028	m4atomp3converter.exe

pid	process
4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exed7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp

description	pid	process	target process
PID 4344 wrote to memory of 4812	4344	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
PID 4344 wrote to memory of 4812	4344	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
PID 4344 wrote to memory of 4812	4344	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
PID 4812 wrote to memory of 464	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe
PID 4812 wrote to memory of 464	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe
PID 4812 wrote to memory of 464	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe
PID 4812 wrote to memory of 5028	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe
PID 4812 wrote to memory of 5028	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe
PID 4812 wrote to memory of 5028	4812	d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp	m4atomp3converter.exe

C:\Users\Admin\AppData\Local\Temp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe
"C:\Users\Admin\AppData\Local\Temp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4344

C:\Users\Admin\AppData\Local\Temp\is-51GN0.tmp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
"C:\Users\Admin\AppData\Local\Temp\is-51GN0.tmp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp" /SL5="$B0064,5164447,54272,C:\Users\Admin\AppData\Local\Temp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4812

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:464

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:5028

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\M4A to MP3 Free Converter\m4atomp3converter.exe
Filesize
3.3MB

MD5
a5656c185b9ec521dd710a6754af67ad

SHA1
caeb1431fffdd4870019313361fb01918f041769

SHA256
568eba1118fd19f3b07a4dce5b48a0fac8a02996676b341caeabd5ba4291f9cf

SHA512
99e898febf99ba5ae034b3f5bc4b18e68d522f67172436c08691eaa7bb66834ad97f317626f51a7398e0d0df0d4586c5f1394168b50d3315c1a7909acef0f7b3

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-51GN0.tmp\d7828adc3890d3700c8c9c26c86b86251734bb3d67a34131ea2167ac67f60042.tmp
Filesize
680KB

MD5
984e6b8a7e6fa5cbf5a45904b1defc00

SHA1
37ce92d6cf1a117a191d14cc7fa1a6a97c05c967

SHA256
3313fd9ad369bdee368d356036858a7fcc6182175a30a92a6b73e41e1b2a5eb7

SHA512
55af997bfcc532ff01e593471197555432481587c263eb3777e511c656e030edd6c34edce0778b07e117dae4b9ed18976d2ec5c2fe127511a5f29928223ab7c8

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-6R6FG.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/464-59-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/464-60-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/464-63-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/464-65-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/4344-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4344-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4344-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4812-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4812-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5028-74-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-96-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-67-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-77-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-80-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-83-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-86-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5028-88-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-93-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-71-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-99-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-102-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-105-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-108-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-109-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5028-110-0x0000000000830000-0x00000000008D2000-memory.dmp

Filesize
648KB

Download
memory/5028-114-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/5028-117-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download

Analysis

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