socks5systemz | 0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c

General

Target

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe
Size

5.0MB
MD5

1d404808fddb8e8f3638ea73a0b57326
SHA1

6297936dc0638cc67f7938550f3c9e1f4c3c1ca4
SHA256

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c
SHA512

61ad3eb223fa845c1abcf2cb12559c6fb2982973a9e93ba2c6fd621f6bed1059f197246365d9ad93a7c2221925a40fc4c0e97b1a9c8cdc200897441f28b00350
SSDEEP

98304:mAIX91XtzekTgvUzIKwr0ZUJcrsAACl3RQHr9pITBw/mw74KhIu:tIXntz1gvyB7lWCCzUp2nIu

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ayuqfcf.ru

http://ayuqfcf.ru/search/?q=67e28dd8655bf57a4609f84c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa48e8889b5e4fa9281ae978ff71ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff717c0ef90983f

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/344-85-0x00000000008B0000-0x0000000000952000-memory.dmp	family_socks5systemz

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

Processes:

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmpm4atomp3freeconverter.exem4atomp3freeconverter.exe

pid process

4852 0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
5092 m4atomp3freeconverter.exe
344 m4atomp3freeconverter.exe
Loads dropped DLL 1 IoCs

Processes:

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

pid process

4852 0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.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:

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

pid process

4852 0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

pid	process
4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
5092	m4atomp3freeconverter.exe
344	m4atomp3freeconverter.exe

pid	process
4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp

description	pid	process	target process
PID 5116 wrote to memory of 4852	5116	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
PID 5116 wrote to memory of 4852	5116	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
PID 5116 wrote to memory of 4852	5116	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
PID 4852 wrote to memory of 5092	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe
PID 4852 wrote to memory of 5092	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe
PID 4852 wrote to memory of 5092	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe
PID 4852 wrote to memory of 344	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe
PID 4852 wrote to memory of 344	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe
PID 4852 wrote to memory of 344	4852	0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp	m4atomp3freeconverter.exe

C:\Users\Admin\AppData\Local\Temp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe
"C:\Users\Admin\AppData\Local\Temp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:5116

C:\Users\Admin\AppData\Local\Temp\is-0U393.tmp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0U393.tmp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp" /SL5="$502FC,4959195,54272,C:\Users\Admin\AppData\Local\Temp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4852

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -i
3⤵
- Executes dropped EXE
PID:5092

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
"C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe" -s
3⤵
- Executes dropped EXE
PID:344

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\M4A to MP3 Free Converter\m4atomp3freeconverter.exe
Filesize
3.1MB

MD5
b26ddcc7a2d23fe6949b38a31903ca61

SHA1
dd18247686b63a27df69aa458b62d0af02f56181

SHA256
0e27990ac33b9d559ce0afc257502c727b51bb9b2a8ce68c39789d6565aa82d9

SHA512
0c673dcd611def14aeb2f550d25c2f77dce8c82e4664553f18d053a9654e0a8d39cd3ace7834d796c05e4591c612a2dca405b539720cb439e6131cb2bcb99377

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0U393.tmp\0a9d34bcfad506b0bea7a71da5e45b4a91a41e88ab0de4a85976810d8965750c.tmp
Filesize
680KB

MD5
dafff71ba13e58daac2c21ed0ed54458

SHA1
ec169d6088ee3a539030ef630164dae1dd7d9a80

SHA256
167c4af51c1b261fc6bc53d7e4eab5cc5408ac4953518f1dcd129dbe62aca9fb

SHA512
ecd2f14d391892f82efea278949c0a20367bec0eefef159ad44915d008b462ba0ffb5b00175c5b7f9b9e1f2779f9ed562eb39cf143dd9f44b550f96a7c9bc719

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/344-107-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-92-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-85-0x00000000008B0000-0x0000000000952000-memory.dmp

Filesize
648KB

Download
memory/344-131-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-87-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-126-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-67-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-123-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-120-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-70-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-73-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-111-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-79-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-82-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-117-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-114-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-76-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-95-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-98-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-101-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/344-104-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/4852-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4852-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5092-60-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/5092-64-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/5092-59-0x0000000000400000-0x0000000000720000-memory.dmp

Filesize
3.1MB

Download
memory/5116-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/5116-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/5116-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download

Analysis

Sharing