socks5systemz | 3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4

Analysis

max time kernel
142s
max time network
127s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
29-06-2024 07:20

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General

Target

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe
Size

4.9MB
MD5

dfb176122ad4f536187cb8ce0ad60ad3
SHA1

5b2d9e9f8aaf507cacc66eaadab7adb9343052aa
SHA256

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4
SHA512

b341728feac15b6941c387b1f8b3ff3e9fccb580727a128f0f910d10ed0a8c508c3cad8dbbbb299d5591987ebabaf888b26a4a5fcecdab7c49b52a568fa0a177
SSDEEP

98304:CiL1eZyaXe3fxNWMg1RcKRXCwQZ/7CEm6SUpSUUMHFOF7W4h2bcC1Qxr:h1QX4DhgHcKEZjeoSw0ytbpQB

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/960-86-0x0000000000AD0000-0x0000000000B71000-memory.dmp	family_socks5systemz
behavioral2/memory/960-109-0x0000000000AD0000-0x0000000000B71000-memory.dmp	family_socks5systemz
behavioral2/memory/960-108-0x0000000000AD0000-0x0000000000B71000-memory.dmp	family_socks5systemz

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

Processes:

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmpvkfreeaudiosaver.exevkfreeaudiosaver.exe

pid process

3896 3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
1372 vkfreeaudiosaver.exe
960 vkfreeaudiosaver.exe
Loads dropped DLL 1 IoCs

Processes:

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

pid process

3896 3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.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 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:

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

pid process

3896 3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

pid	process
3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
1372	vkfreeaudiosaver.exe
960	vkfreeaudiosaver.exe

pid	process
3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp

description	pid	process	target process
PID 4260 wrote to memory of 3896	4260	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
PID 4260 wrote to memory of 3896	4260	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
PID 4260 wrote to memory of 3896	4260	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
PID 3896 wrote to memory of 1372	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe
PID 3896 wrote to memory of 1372	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe
PID 3896 wrote to memory of 1372	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe
PID 3896 wrote to memory of 960	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe
PID 3896 wrote to memory of 960	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe
PID 3896 wrote to memory of 960	3896	3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp	vkfreeaudiosaver.exe

C:\Users\Admin\AppData\Local\Temp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe
"C:\Users\Admin\AppData\Local\Temp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4260

C:\Users\Admin\AppData\Local\Temp\is-96O0Q.tmp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
"C:\Users\Admin\AppData\Local\Temp\is-96O0Q.tmp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp" /SL5="$C0266,4933346,54272,C:\Users\Admin\AppData\Local\Temp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3896

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:1372

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:960

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-96O0Q.tmp\3a9ac13cb6255e6c8e46096de49681d9c82a35e5128ae22b6dcfd6366f7315b4.tmp
Filesize
680KB

MD5
2063e43e6fbdcae73e5424ca0d9dc199

SHA1
ee17088154fe281ee6b2b07f7ad8b490abe78dbf

SHA256
8a16636dc95ffac9f6e7dc17a178b87b4d3df80c905bdb7d43cb0d98718afa37

SHA512
5c26096b16e0230f462738939198026bd84fb8b2eab80258df7766a3be995802aea002e76fcb42f1e82470059bf4422abb0aeac7fe49a79a1204f9a69ab3ef87

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MPGC8.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\vkfreeaudiosaver.exe
Filesize
3.2MB

MD5
b340f37cb03b2e7ddeda53aa2a997db2

SHA1
1c050eadc50e65954ee0b83b90d11001ac62bedf

SHA256
30e6f3223dac4397683d95ab113d4909a1068706032f338240a1000f8c088cc0

SHA512
07479d8c40e98935fbd9ccaa0aa0b38a803ed13dfc8bfe183c430b70692fb35ad07b4075b5cd8fc91fe1a762a7d1e832640e8b88438b8fc5f85fe635a5c66139

Download Submit
memory/960-98-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-101-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-116-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-113-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-108-0x0000000000AD0000-0x0000000000B71000-memory.dmp

Filesize
644KB

Download
memory/960-109-0x0000000000AD0000-0x0000000000B71000-memory.dmp

Filesize
644KB

Download
memory/960-67-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-107-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-104-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-70-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-73-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-76-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-79-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-82-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-86-0x0000000000AD0000-0x0000000000B71000-memory.dmp

Filesize
644KB

Download
memory/960-85-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-92-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/960-95-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/1372-63-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/1372-60-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/1372-59-0x0000000000400000-0x0000000000740000-memory.dmp

Filesize
3.2MB

Download
memory/3896-10-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3896-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4260-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4260-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4260-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download