socks5systemz | 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2024 17:10

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General

Target

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe
Size

5.0MB
MD5

0777385fc833ad8fcee301643fd651db
SHA1

1c51ee26d564c87429e1026731d8b7e76782c2d5
SHA256

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf
SHA512

33bc48eac40e0a2e67698de6ceb7ba79090d9658311e046c8f3369c7e27d4a4eea052da195c08e5a46727d4fc063590e0783a1d8ff0c87c646bd4079244cd52a
SSDEEP

98304:C9egE8exvHexahnUexFUzhfrUDpX8ekYABndym+s2y9msdOqLk2aQFFHQx9W:fgE8g+xAnZshfoJ8ek1dym+s2y9VOqRX

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/1848-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

2552 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
3900 vkfreeaudiosaver32_64.exe
1848 vkfreeaudiosaver32_64.exe
Loads dropped DLL 1 IoCs

Processes:

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

pid process

2552 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
Unexpected DNS network traffic destination 3 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
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:

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

pid process

2552 66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

resource	yara_rule
behavioral1/memory/1848-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp	family_socks5systemz

pid	process
2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
3900	vkfreeaudiosaver32_64.exe
1848	vkfreeaudiosaver32_64.exe

pid	process
2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

description	ioc
Destination IP	141.98.234.31
Destination IP	91.211.247.248
Destination IP	152.89.198.214

pid	process
2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp

description	pid	process	target process
PID 2360 wrote to memory of 2552	2360	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
PID 2360 wrote to memory of 2552	2360	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
PID 2360 wrote to memory of 2552	2360	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
PID 2552 wrote to memory of 3900	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe
PID 2552 wrote to memory of 3900	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe
PID 2552 wrote to memory of 3900	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe
PID 2552 wrote to memory of 1848	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe
PID 2552 wrote to memory of 1848	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe
PID 2552 wrote to memory of 1848	2552	66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe
"C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2360

C:\Users\Admin\AppData\Local\Temp\is-2CTOL.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
"C:\Users\Admin\AppData\Local\Temp\is-2CTOL.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp" /SL5="$501D0,4973540,54272,C:\Users\Admin\AppData\Local\Temp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2552

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:3900

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:1848

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\is-2CTOL.tmp\66e6a059240202a32ddb5734306d995edd01ff702f58ac31bcc48b5e90cf33bf.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U5PVK.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

MD5
5d41f8c936ef4d69e19771a10b39b9e1

SHA1
a1ec97030e87adc5d99a24bfa1f0588a381c3981

SHA256
0d5213060c5f37b3f686904bc2745b7a804a557e304cbd782c624583bd74ce56

SHA512
168d1f4bfe519d1741da4591224321e38392e522893afeb756f320f95a3564e48930fbc251249b854bad5321983a4bdb8079d6847ff4df82c13608f8cc9e5eee

Download Submit
memory/1848-90-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-76-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-116-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-113-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-110-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-107-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-104-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-68-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-69-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-101-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-98-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-72-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-75-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-95-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-79-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-82-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-85-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1848-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp

Filesize
648KB

Download
memory/2360-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2360-70-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2360-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2552-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2552-71-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3900-64-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3900-65-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3900-60-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/3900-59-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download