socks5systemz | 9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b

Analysis

max time kernel
155s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2024 21:59

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General

Target

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe
Size

4.9MB
MD5

84ce01e38f46dc64c51520fb41187390
SHA1

9b21cf8f6db6d3f33d4294354c411f1cc57aacfe
SHA256

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b
SHA512

9bea4b4f84df381ce835a223e2532486139ec7cca91d61a2bbf83dcea87bdfe409458bd27ab3397fe31113ce8b229275bd12948ca91d72a8294a6348e5d4c037
SSDEEP

98304:CEHZfl9SJRKkDxrQtyOL+EnFMmGGGtMVkge24eE4uobPHUTVk7aKxIAnQx9W:T5dK19QGt4sAeTVk7xbQa

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/3132-88-0x0000000000960000-0x0000000000A02000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

3752 9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
4760 vkfreeaudiosaver32_64.exe
3132 vkfreeaudiosaver32_64.exe
Loads dropped DLL 1 IoCs

Processes:

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

pid process

3752 9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.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 91.211.247.248
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:

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

pid process

3752 9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

resource	yara_rule
behavioral1/memory/3132-88-0x0000000000960000-0x0000000000A02000-memory.dmp	family_socks5systemz

pid	process
3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
4760	vkfreeaudiosaver32_64.exe
3132	vkfreeaudiosaver32_64.exe

pid	process
3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp

description	pid	process	target process
PID 2116 wrote to memory of 3752	2116	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
PID 2116 wrote to memory of 3752	2116	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
PID 2116 wrote to memory of 3752	2116	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
PID 3752 wrote to memory of 4760	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe
PID 3752 wrote to memory of 4760	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe
PID 3752 wrote to memory of 4760	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe
PID 3752 wrote to memory of 3132	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe
PID 3752 wrote to memory of 3132	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe
PID 3752 wrote to memory of 3132	3752	9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe
"C:\Users\Admin\AppData\Local\Temp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2116

C:\Users\Admin\AppData\Local\Temp\is-951U2.tmp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
"C:\Users\Admin\AppData\Local\Temp\is-951U2.tmp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp" /SL5="$90118,4937630,54272,C:\Users\Admin\AppData\Local\Temp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3752

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:4760

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:3132

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4036 --field-trial-handle=2676,i,447940133669489189,1353734109898858672,262144 --variations-seed-version /prefetch:8
1⤵
PID:4184

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-951U2.tmp\9852caa0853df0991df43594452fece2ffb6679ca1dcf2052d7f203ad9bf026b.tmp
Filesize
680KB

MD5
70295416713c0ce535665d806e3d54ac

SHA1
fe13c334ec67412f41fe190f93da7d45a57eccbd

SHA256
958c5f807a8268b09828e0f02a6c75a92f3a87dbd1853eb62e5996db990ba2ba

SHA512
2336597fb6ffe697ba62cd931479108556fee44319176989f961ae43aea62b111df6870a169202c6d960aface42779a2f82db48a69fe2072b711a512812f925c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-CAP7I.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
3.4MB

MD5
30320f4d5e4535918aa426c9330975e9

SHA1
9bb58bc6f8a253fff791b76dda5c173a22d91e47

SHA256
54e0c890bcdc18bf4234b5e3d87ac32dff9623c895b9a28bef2970ee6177f181

SHA512
4e7600161fc225bde4b04078349ca379ec5f56a2ada5d31ca2dc46efc73f336d119ca70b2008c41aae1ebc1ccacc6c55e19babe57dfdc419c608421aa0eca649

Download Submit
memory/2116-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2116-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2116-17-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3132-92-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-79-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-114-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-110-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-107-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-67-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-69-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-104-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-72-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-75-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-77-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-101-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-82-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-85-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-88-0x0000000000960000-0x0000000000A02000-memory.dmp

Filesize
648KB

Download
memory/3132-98-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3132-95-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/3752-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3752-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4760-60-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/4760-65-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/4760-62-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download
memory/4760-61-0x0000000000400000-0x0000000000776000-memory.dmp

Filesize
3.5MB

Download