socks5systemz | 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4

Analysis

max time kernel
293s
max time network
299s
platform
windows7_x64
resource
win7-20240508-en
resource tags

arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
submitted
01-07-2024 05:04

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General

Target

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
Size

5.0MB
MD5

cee56c743cd7c20a6f403c0e903072f8
SHA1

67656b2cf28149242542919c15d8b759ca47424e
SHA256

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4
SHA512

e1e066185f35cf90d46a4d4d7d70b22afe1e88d910d23654f72a3b86c0a04a05c2cbc3970e046b5d3ca05e2d69a1e6f4b43ff87674df1e4268651b2c1449ab0d
SSDEEP

98304:C830wCrav6QBqmJstibfDh036MaXgiFswyKmkdqkR1eBkGWpTBNUzgjY2nsYMYpq:P3qrk4Gstk7h03LaXNFtyKmYJGST3mgW

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/2540-92-0x00000000025D0000-0x0000000002672000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

2600 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
2544 vkfreeaudiosaver32_64.exe
2540 vkfreeaudiosaver32_64.exe

resource	yara_rule
behavioral1/memory/2540-92-0x00000000025D0000-0x0000000002672000-memory.dmp	family_socks5systemz

pid	process
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
2544	vkfreeaudiosaver32_64.exe
2540	vkfreeaudiosaver32_64.exe

Loads dropped DLL 5 IoCs

Processes:

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

pid	process
1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

Unexpected DNS network traffic destination 13 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
Destination IP	45.155.250.90
Destination IP	45.155.250.90
Destination IP	81.31.197.38
Destination IP	81.31.197.38
Destination IP	45.155.250.90
Destination IP	141.98.234.31
Destination IP	152.89.198.214
Destination IP	141.98.234.31
Destination IP	152.89.198.214
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	152.89.198.214

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:

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

pid process

2600 7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

pid	process
2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp

description	pid	process	target process
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 1640 wrote to memory of 2600	1640	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
PID 2600 wrote to memory of 2544	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2544	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2544	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2544	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2540	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2540	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2540	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe
PID 2600 wrote to memory of 2540	2600	7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe
"C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe"
1⤵
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:1640

C:\Users\Admin\AppData\Local\Temp\is-N2HOM.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
"C:\Users\Admin\AppData\Local\Temp\is-N2HOM.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp" /SL5="$40016,5005498,54272,C:\Users\Admin\AppData\Local\Temp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2600

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:2544

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:2540

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

C:\Users\Admin\AppData\Local\Temp\is-N2HOM.tmp\7bc701c979bd89179a721f3555fb0084c54e57c5c74d0ddb91ae6d141e656cf4.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

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

MD5
25a7753d8319489df4deeac9a034de8a

SHA1
cac4eb323819f52955194874e8aee4f1acf0a2ce

SHA256
a2a8db80e4ccef5b2692a3a7d213d75ab29cba50c5af02b7b747dddeab693f9b

SHA512
c54b096a0e4f4463d7c17215b1a883f29d1cf80489d686b666217514f0f9291c9ab88329a7b7febdf80c73e2a73e7c7f7ceab50284dadc5891016cac250b23a2

Download Submit
\Users\Admin\AppData\Local\Temp\is-0C8J1.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
\Users\Admin\AppData\Local\Temp\is-0C8J1.tmp\_isetup\_shfoldr.dll
Filesize
22KB

MD5
92dc6ef532fbb4a5c3201469a5b5eb63

SHA1
3e89ff837147c16b4e41c30d6c796374e0b8e62c

SHA256
9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

SHA512
9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

Download Submit
memory/1640-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/1640-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1640-73-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2540-104-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-91-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-134-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-71-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-131-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-128-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-125-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-75-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-122-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-78-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-82-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-85-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-88-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-119-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-92-0x00000000025D0000-0x0000000002672000-memory.dmp

Filesize
648KB

Download
memory/2540-98-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-101-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-116-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-107-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-110-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2540-113-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2544-65-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2544-66-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2544-69-0x0000000000400000-0x0000000000784000-memory.dmp

Filesize
3.5MB

Download
memory/2600-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2600-79-0x0000000004340000-0x00000000046C4000-memory.dmp

Filesize
3.5MB

Download
memory/2600-64-0x0000000004340000-0x00000000046C4000-memory.dmp

Filesize
3.5MB

Download
memory/2600-74-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download