socks5systemz | ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e

Analysis

max time kernel
143s
max time network
127s
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 06:28

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General

Target

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe
Size

5.0MB
MD5

bd6d75473394c6de28b3e2fb0a1a0a81
SHA1

81c73ed251e2954b842ad30c488f00329a721ce5
SHA256

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e
SHA512

718472653345091ecd3aef4c7b43503075b9f61d28ff42d6a8e035fc2387028190cb0b103d7774f0a4ec925d619355a4745b9a40c93016f399790862abc1c84b
SSDEEP

98304:Clp2o6Zkdc//N2Y1NC7iuQy9x2q/AInh9yEyVT8kTIpn4YTFlyW25KtQmrADNLJK:gp95cHh4iZDq/X6hT8kTIyYfy/4tQm++

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2996-86-0x0000000000890000-0x0000000000931000-memory.dmp	family_socks5systemz
behavioral1/memory/2996-109-0x0000000000890000-0x0000000000931000-memory.dmp	family_socks5systemz
behavioral1/memory/2996-110-0x0000000000890000-0x0000000000931000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Executes dropped EXE 3 IoCs

Processes:

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmpvkfreeaudiosaver.exevkfreeaudiosaver.exe

pid process

4584 ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
3016 vkfreeaudiosaver.exe
2996 vkfreeaudiosaver.exe
Loads dropped DLL 1 IoCs

Processes:

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

pid process

4584 ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.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:

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

pid process

4584 ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

pid	process
4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
3016	vkfreeaudiosaver.exe
2996	vkfreeaudiosaver.exe

pid	process
4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exeee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp

description	pid	process	target process
PID 2124 wrote to memory of 4584	2124	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
PID 2124 wrote to memory of 4584	2124	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
PID 2124 wrote to memory of 4584	2124	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
PID 4584 wrote to memory of 3016	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe
PID 4584 wrote to memory of 3016	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe
PID 4584 wrote to memory of 3016	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe
PID 4584 wrote to memory of 2996	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe
PID 4584 wrote to memory of 2996	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe
PID 4584 wrote to memory of 2996	4584	ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp	vkfreeaudiosaver.exe

C:\Users\Admin\AppData\Local\Temp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe
"C:\Users\Admin\AppData\Local\Temp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2124

C:\Users\Admin\AppData\Local\Temp\is-S5UN0.tmp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
"C:\Users\Admin\AppData\Local\Temp\is-S5UN0.tmp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp" /SL5="$600EC,5001648,54272,C:\Users\Admin\AppData\Local\Temp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4584

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -i
3⤵
- Executes dropped EXE
PID:3016

C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
"C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe" -s
3⤵
- Executes dropped EXE
PID:2996

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-OUV67.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-S5UN0.tmp\ee8b8213fb72bf85196b65164478f563ab79b6e9a6cd13e91b0ee1781108f38e.tmp
Filesize
680KB

MD5
2063e43e6fbdcae73e5424ca0d9dc199

SHA1
ee17088154fe281ee6b2b07f7ad8b490abe78dbf

SHA256
8a16636dc95ffac9f6e7dc17a178b87b4d3df80c905bdb7d43cb0d98718afa37

SHA512
5c26096b16e0230f462738939198026bd84fb8b2eab80258df7766a3be995802aea002e76fcb42f1e82470059bf4422abb0aeac7fe49a79a1204f9a69ab3ef87

Download Submit
C:\Users\Admin\AppData\Local\VK Free Audio Saver\vkfreeaudiosaver.exe
Filesize
3.3MB

MD5
94be7df8298e062262bb6274ad7ad4a0

SHA1
2003289ad6426b216e777563d2a8339a260ac523

SHA256
2de09a692a31d05a6742cdc9222e1b483ac18320bab98443fead312879836070

SHA512
27f25cae79146528833cef19a64183905fd303ed8d60dbed4fb51b7326f8001a5a1a269dbd0513d069ed0b55507e4e0d28ba00c83b8484795eb8d8f0e2a90cf3

Download Submit
memory/2124-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2124-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2124-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2996-96-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-99-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-117-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-114-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-68-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-110-0x0000000000890000-0x0000000000931000-memory.dmp

Filesize
644KB

Download
memory/2996-109-0x0000000000890000-0x0000000000931000-memory.dmp

Filesize
644KB

Download
memory/2996-71-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-74-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-77-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-80-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-83-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-86-0x0000000000890000-0x0000000000931000-memory.dmp

Filesize
644KB

Download
memory/2996-90-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-93-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-108-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-105-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/2996-102-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/3016-60-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/3016-59-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/3016-64-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/3016-65-0x0000000000400000-0x000000000074F000-memory.dmp

Filesize
3.3MB

Download
memory/4584-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4584-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download