socks5systemz | 1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160

Analysis

max time kernel
153s
max time network
157s
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 14:07

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General

Target

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe
Size

5.0MB
MD5

efd7381aa32b57cf6be5360ebb9bb1bf
SHA1

0d7d590f810bf268de0bc0827cc3cf9492675920
SHA256

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160
SHA512

b94eb285231d39673080b811e80540db5de2e0110192c74304ee2162ea2e73d500b161430091d129b3f40ee2181a745017d9d54a0c44f31ce23736d3afbf6936
SSDEEP

98304:Coto1QQfJoj8qTAMKxtkLxgjcYT/t0kmzPixd9L6auUgvAmeG3RREm1f7FW+XeBw:q1d6rKxZ3T/V4i79RuLvoG57FtQ9a

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource yara_rule

behavioral1/memory/1160-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp family_socks5systemz
Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmpvkfreeaudiosaver32_64.exevkfreeaudiosaver32_64.exe

pid process

5048 1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
488 vkfreeaudiosaver32_64.exe
1160 vkfreeaudiosaver32_64.exe
Loads dropped DLL 1 IoCs

Processes:

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

pid process

5048 1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.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:

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

pid process

5048 1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

resource	yara_rule
behavioral1/memory/1160-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp	family_socks5systemz

pid	process
5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
488	vkfreeaudiosaver32_64.exe
1160	vkfreeaudiosaver32_64.exe

pid	process
5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp

description	pid	process	target process
PID 1780 wrote to memory of 5048	1780	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
PID 1780 wrote to memory of 5048	1780	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
PID 1780 wrote to memory of 5048	1780	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
PID 5048 wrote to memory of 488	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe
PID 5048 wrote to memory of 488	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe
PID 5048 wrote to memory of 488	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe
PID 5048 wrote to memory of 1160	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe
PID 5048 wrote to memory of 1160	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe
PID 5048 wrote to memory of 1160	5048	1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp	vkfreeaudiosaver32_64.exe

C:\Users\Admin\AppData\Local\Temp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe
"C:\Users\Admin\AppData\Local\Temp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1780

C:\Users\Admin\AppData\Local\Temp\is-U3OQD.tmp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
"C:\Users\Admin\AppData\Local\Temp\is-U3OQD.tmp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp" /SL5="$90030,4945774,54272,C:\Users\Admin\AppData\Local\Temp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5048

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:488

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:1160

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=4032 --field-trial-handle=2900,i,14549994492153927475,12895178890800740987,262144 --variations-seed-version /prefetch:8
1⤵
PID:320

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-9H6TF.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-U3OQD.tmp\1258b150c497f8944885894daec77fcbeff934f5bce99f2b5d206cca31e59160.tmp
Filesize
680KB

MD5
b1397898451beea2b4e9acc92d855238

SHA1
8260c2c26f3f098dd7aac48262f11fae87f7bf6b

SHA256
d0223e1d0f72ea52b3bae90c6e212fd967af81b6a82fb6f87908e4ba5685409f

SHA512
60432f96c9a81b95dfe541a08419ffc3f1dcbb2a16bbb129b63e332abe93fdb4076dfe9223eee70aa8a46dc277e1990612e821fe00c389bea0d90bf25d4b800b

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

MD5
0d18096d245db30e11bef7eef6b08872

SHA1
5a1193ddbb3f5ba7e43b856e3e3fcee16426369b

SHA256
40f89205c376b0600984d1629cd325d55c0d410bfc7ccbe956c157d2fb180f49

SHA512
17cc541e03d7457b29270db7c4e27b19058c20f8c93a1950ede158378170db50258f99e90cdcbb7a3a626d3b697c6682a7905ae58272fd71d43f6c368647c1ea

Download Submit
memory/488-60-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/488-65-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/488-62-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/488-61-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-72-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-98-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-114-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-110-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-67-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-69-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-107-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-104-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-75-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-76-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-79-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-82-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-85-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-88-0x0000000000A30000-0x0000000000AD2000-memory.dmp

Filesize
648KB

Download
memory/1160-92-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-95-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1160-101-0x0000000000400000-0x0000000000785000-memory.dmp

Filesize
3.5MB

Download
memory/1780-59-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1780-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1780-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5048-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5048-7-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download