socks5systemz | 4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0

General

Target

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe
Size

5.2MB
MD5

bbb3ee5d05eb0597ced7b16baa3557d6
SHA1

4648a787a1eb3e655c9a47378f48e4d75aa7cef9
SHA256

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0
SHA512

c15e187fcc7d5ea33bb5251dc8928f29f7dbb4e900777e84af53295c9857ae3f6b11003c8b08bd8bee4a57e584ba14cae9d5f2516d770c4e7baa2755be6cd148
SSDEEP

98304:ms5DGfCWZLOeVsIT1+jwOJgQtHMxQI/KecwTOyt8e1372HiTE+gVb5JWn4g6z+E6:1afCWZLOWSwOJjtHJI/Kej136cgVFJMT

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4600-93-0x0000000002490000-0x0000000002532000-memory.dmp	family_socks5systemz
behavioral2/memory/4600-116-0x0000000002490000-0x0000000002532000-memory.dmp	family_socks5systemz
behavioral2/memory/4600-117-0x0000000002490000-0x0000000002532000-memory.dmp	family_socks5systemz

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

Processes:

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmpmidiplayer32.exemidiplayer32.exe

pid process

232 4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
4004 midiplayer32.exe
4600 midiplayer32.exe

Loads dropped DLL 3 IoCs

Processes:

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp

pid	process
232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.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:

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp

pid process

232 4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp

description	ioc
Destination IP	141.98.234.31

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp

description	pid	process	target process
PID 2244 wrote to memory of 232	2244	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
PID 2244 wrote to memory of 232	2244	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
PID 2244 wrote to memory of 232	2244	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
PID 232 wrote to memory of 4004	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe
PID 232 wrote to memory of 4004	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe
PID 232 wrote to memory of 4004	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe
PID 232 wrote to memory of 4600	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe
PID 232 wrote to memory of 4600	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe
PID 232 wrote to memory of 4600	232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp	midiplayer32.exe

C:\Users\Admin\AppData\Local\Temp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe
"C:\Users\Admin\AppData\Local\Temp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2244

C:\Users\Admin\AppData\Local\Temp\is-4MP4R.tmp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
"C:\Users\Admin\AppData\Local\Temp\is-4MP4R.tmp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp" /SL5="$5006C,5205850,54272,C:\Users\Admin\AppData\Local\Temp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:232

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -i
3⤵
- Executes dropped EXE
PID:4004

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe
"C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe" -s
3⤵
- Executes dropped EXE
PID:4600

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Sounder Midi Player\midiplayer32.exe

Filesize
2.5MB

MD5
017e0201e8a461c83a1df6baa31cb289

SHA1
3f5581405ed3c922afbd7f7b1d734d02ef0231bb

SHA256
bea83ca467bf30695fcd3fea614928979f354ae4890506366943d66210f2cd9c

SHA512
d6eb17e4634017df4433dbfaaafbaa520aaeed8276cd9713eb25c9e60a406c8e487e7e358826f02faba3feca068dd5f77185864f995929b94367611cf9fa7203

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0FLBQ.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0FLBQ.tmp\_isetup\_isdecmp.dll

Filesize
32KB

MD5
b6f11a0ab7715f570f45900a1fe84732

SHA1
77b1201e535445af5ea94c1b03c0a1c34d67a77b

SHA256
e47dd306a9854599f02bc1b07ca6dfbd5220f8a1352faa9616d1a327de0bbf67

SHA512
78a757e67d21eb7cc95954df15e3eeff56113d6b40fb73f0c5f53304265cc52c79125d6f1b3655b64f9a411711b5b70f746080d708d7c222f4e65bad64b1b771

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-4MP4R.tmp\4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp

Filesize
680KB

MD5
29ac48e0713a4220ff4b4b47efe542b4

SHA1
9ea8bdf5547a541b755f4b2c0bc14bf817885e94

SHA256
deead3dd651930ad0bec5d7bae647d7a1637b48bb7495593995218c4cd6dd67c

SHA512
501cdc7df40fb0cd1a114b4d5f5dcab765141c58f29bafa1e4a816319354a3d6d9e0d4b2ee5a2fad64f3fb08fb7bbdaad30551587a875f8fbdc2acdb8f67a3d4

Download Submit
memory/232-22-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/232-76-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2244-75-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2244-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2244-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4004-69-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4004-65-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4004-68-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-80-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-94-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-77-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-81-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-72-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-84-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-87-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-90-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-93-0x0000000002490000-0x0000000002532000-memory.dmp

Filesize
648KB

Download
memory/4600-74-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-100-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-103-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-106-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-109-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-112-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-115-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-116-0x0000000002490000-0x0000000002532000-memory.dmp

Filesize
648KB

Download
memory/4600-117-0x0000000002490000-0x0000000002532000-memory.dmp

Filesize
648KB

Download
memory/4600-121-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download
memory/4600-124-0x0000000000400000-0x000000000068D000-memory.dmp

Filesize
2.6MB

Download

pid	process
232	4ffdc3dfaae8d1ca7799711a9973c54ce8240ada4baa3e655c7b12024f7699b0.tmp
4004	midiplayer32.exe
4600	midiplayer32.exe

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads