socks5systemz | a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9

Analysis

max time kernel
293s
max time network
250s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 05:06

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General

Target

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe
Size

4.9MB
MD5

aa2dd421a08d7eddeaf18356aae89abe
SHA1

a6faba8bf84c52701a091c1c39e1605f71dee69e
SHA256

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9
SHA512

f5f2ea98cac14cf54bf785bc0471c8ab5fa176f368b406e4a08d53f6621723112ffa5c6e5e8bc0425ac53fe4e56bbacb64c833606b1b56336c5f4a8f7338899c
SSDEEP

98304:C5MfJHjes9t0gPy15f7PAf6hTd/SlTi1GdsJAwHAInpfkDP5GSm+GXCQx9W:NhBYcy15f7PthTd/Sl96AwLnq5jVkCQa

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2568-92-0x0000000002470000-0x0000000002512000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

1152 a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
2152 vkfreeaudiosaver32_64.exe
2568 vkfreeaudiosaver32_64.exe

resource	yara_rule
behavioral1/memory/2568-92-0x0000000002470000-0x0000000002512000-memory.dmp	family_socks5systemz

pid	process
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
2152	vkfreeaudiosaver32_64.exe
2568	vkfreeaudiosaver32_64.exe

Loads dropped DLL 5 IoCs

Processes:

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exea9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp

pid	process
3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.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:

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp

pid process

1152 a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exea9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp

description	pid	process	target process
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 3024 wrote to memory of 1152	3024	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
PID 1152 wrote to memory of 2152	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2152	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2152	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2152	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2568	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2568	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2568	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe
PID 1152 wrote to memory of 2568	1152	a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe
"C:\Users\Admin\AppData\Local\Temp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:3024

C:\Users\Admin\AppData\Local\Temp\is-U4UG1.tmp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
"C:\Users\Admin\AppData\Local\Temp\is-U4UG1.tmp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp" /SL5="$80126,4934160,54272,C:\Users\Admin\AppData\Local\Temp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1152

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe" -i
3⤵
- Executes dropped EXE
PID:2152

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.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

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

\Users\Admin\AppData\Local\Temp\is-AJAB5.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-AJAB5.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
\Users\Admin\AppData\Local\Temp\is-U4UG1.tmp\a9428152505947ed52bc9f27305e5e5699302b557f5dd7f86a9e19ca3acb47d9.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

Download Submit
\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver32_64.exe
Filesize
3.5MB

MD5
350a56a7e91e0f32a8afb45a901bb1cf

SHA1
e257f1d64cee55fccf7e2b45669ff2ff0638fa2d

SHA256
eaf7ae4b579d1a4682306ed857ba6e84c5c94cb50b47dc89e1845bafaa82efb6

SHA512
7b2233803a54eb8e328808785f7023b69baef51ab7ef457486a0ff7d325b09807352cabebf539dc58fdd645c60120cd8574abbd1ada4b9c8c37c30a8fd4b1bfc

Download Submit
memory/1152-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1152-76-0x0000000004140000-0x00000000044BA000-memory.dmp

Filesize
3.5MB

Download
memory/1152-19-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1152-64-0x0000000004140000-0x00000000044BA000-memory.dmp

Filesize
3.5MB

Download
memory/2152-65-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2152-66-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2152-69-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-79-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-98-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-71-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-75-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-137-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-132-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-82-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-85-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-88-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-91-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-92-0x0000000002470000-0x0000000002512000-memory.dmp

Filesize
648KB

Download
memory/2568-129-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-101-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-104-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-107-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-110-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-113-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-117-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-120-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-123-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/2568-126-0x0000000000400000-0x000000000077A000-memory.dmp

Filesize
3.5MB

Download
memory/3024-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3024-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3024-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download