socks5systemz | 71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61

Analysis

max time kernel
147s
max time network
151s
platform
windows11-21h2_x64
resource
win11-20240611-en
resource tags

arch:x64arch:x86image:win11-20240611-enlocale:en-usos:windows11-21h2-x64system
submitted
02-07-2024 01:00

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General

Target

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe
Size

5.1MB
MD5

abd5a1a6fa41166b8b7b19b5bb30a1fb
SHA1

fa4fb3d121825e598d7392f92031c5e11f50c065
SHA256

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61
SHA512

066d78d0d4b1ae9467e0aee501c7405b4eec509fe79174ca651f1011bbff47ed929315b2c35c9ff5f50e940473227f789b72cee17d4d502e44f6eb3802b0f69e
SSDEEP

98304:CQAiEpOMArQ3H2aQ98mP6hyPr8+0C7yB/hrXHZmK5A/UA5FUnu8CX0YQQxy:5AiEpO/J86+yPr8+tA5rXcyvIMupxQQE

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2976-85-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2976-108-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2976-109-0x0000000002640000-0x00000000026E2000-memory.dmp	family_socks5systemz

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

Processes:

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmpmp3doctorfree32_64.exemp3doctorfree32_64.exe

pid process

1320 71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
1668 mp3doctorfree32_64.exe
2976 mp3doctorfree32_64.exe
Loads dropped DLL 1 IoCs

Processes:

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

pid process

1320 71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.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:

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

pid process

1320 71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

pid	process
1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
1668	mp3doctorfree32_64.exe
2976	mp3doctorfree32_64.exe

pid	process
1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

description	ioc
Destination IP	91.211.247.248

pid	process
1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp

description	pid	process	target process
PID 244 wrote to memory of 1320	244	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
PID 244 wrote to memory of 1320	244	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
PID 244 wrote to memory of 1320	244	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
PID 1320 wrote to memory of 1668	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe
PID 1320 wrote to memory of 1668	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe
PID 1320 wrote to memory of 1668	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe
PID 1320 wrote to memory of 2976	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe
PID 1320 wrote to memory of 2976	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe
PID 1320 wrote to memory of 2976	1320	71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp	mp3doctorfree32_64.exe

C:\Users\Admin\AppData\Local\Temp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe
"C:\Users\Admin\AppData\Local\Temp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:244

C:\Users\Admin\AppData\Local\Temp\is-02D6C.tmp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
"C:\Users\Admin\AppData\Local\Temp\is-02D6C.tmp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp" /SL5="$40202,5096330,54272,C:\Users\Admin\AppData\Local\Temp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:1320

C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
"C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -i
3⤵
- Executes dropped EXE
PID:1668

C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe
"C:\Users\Admin\AppData\Local\MP3Doctor Free 2020\mp3doctorfree32_64.exe" -s
3⤵
- Executes dropped EXE
PID:2976

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\MP3Doctor Free 2020\mp3doctorfree32_64.exe
Filesize
3.8MB

MD5
9e8730700e7d5b9da12e3897e84b1055

SHA1
93f795482b0be4af40e3ab6d63ab46e2997ae64c

SHA256
dfa9069742301af003c9c244b0ee1afad11495f24ab49ec837558335d38e99f8

SHA512
118bd31887ee53f1fe095247ff0ee33e904d85af91dac6a7f4f7220051d6a110e5f59fc8408588ac4b8030f324c81f0f679845cdabe91068898ce7230226eac0

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-02D6C.tmp\71ef5150cbd9a8fafaddb79cf913c0bba9a1f3062ab863e0cadb6089a79c3e61.tmp
Filesize
680KB

MD5
6f995e2d6c8d0d1d03cb3afcd1deafaf

SHA1
0319dbd8c7b44067b82fed5272059757a526b3aa

SHA256
cc4530fee96cf6e821fa1dbed0c46ac5310c57d6336999e3f93d29f78376f9eb

SHA512
207b4d327be81e71152ce35cb272362e9862e6002a6c01e9e9df37578c3764ac1c8d19b19e8e3b751162724490f06fea10611d7becabaff3863af993a90db16d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-TJ1DP.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/244-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/244-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/244-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1320-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1320-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/1668-59-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1668-64-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/1668-63-0x0000000000400000-0x000000000047E000-memory.dmp

Filesize
504KB

Download
memory/1668-62-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-73-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-95-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-67-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-76-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-79-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-82-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-85-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/2976-86-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-92-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-70-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-98-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-101-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-104-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-107-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-108-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/2976-109-0x0000000002640000-0x00000000026E2000-memory.dmp

Filesize
648KB

Download
memory/2976-113-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download
memory/2976-116-0x0000000000400000-0x00000000007C6000-memory.dmp

Filesize
3.8MB

Download