socks5systemz | 8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067

General

Target

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe
Size

4.9MB
MD5

016f78f9fd097c3cca85c602d3541e3b
SHA1

bffcb515e6eb10d0d62a1fedc35bc4d299d78943
SHA256

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067
SHA512

7610e9e3fc7d6a800413b50a5e609a960cef2eeea24381ee7daa4d81b40bf9bc3a458561f8963182cbf8074f367ee1b3eb05632b549d574716730febbb910d03
SSDEEP

98304:mAPHYV8HFawbfAtWbF89TUTWb/o2NTpMkC/UUwHkH4abI4CL6xl:XPHYiJbYtB1U4/oUZCMUwEH4abRCM

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

ezfiuye.ua

http://ezfiuye.ua/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff719c0e89c9b39

http://ezfiuye.ua/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12eab517aa5c96bd86ec958349865a8bbc896c58e713bc90c91a36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d923bca669714

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2316-83-0x00000000028B0000-0x0000000002952000-memory.dmp	family_socks5systemz
behavioral2/memory/2316-109-0x00000000028B0000-0x0000000002952000-memory.dmp	family_socks5systemz
behavioral2/memory/2316-110-0x00000000028B0000-0x0000000002952000-memory.dmp	family_socks5systemz

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

Processes:

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmpaudialstunebite32.exeaudialstunebite32.exe

pid process

4388 8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
3772 audialstunebite32.exe
2316 audialstunebite32.exe
Loads dropped DLL 1 IoCs

Processes:

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

pid process

4388 8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.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 45.155.250.90
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:

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

pid process

4388 8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

pid	process
4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
3772	audialstunebite32.exe
2316	audialstunebite32.exe

pid	process
4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp

description	pid	process	target process
PID 4560 wrote to memory of 4388	4560	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
PID 4560 wrote to memory of 4388	4560	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
PID 4560 wrote to memory of 4388	4560	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
PID 4388 wrote to memory of 3772	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe
PID 4388 wrote to memory of 3772	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe
PID 4388 wrote to memory of 3772	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe
PID 4388 wrote to memory of 2316	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe
PID 4388 wrote to memory of 2316	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe
PID 4388 wrote to memory of 2316	4388	8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp	audialstunebite32.exe

C:\Users\Admin\AppData\Local\Temp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe
"C:\Users\Admin\AppData\Local\Temp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4560

C:\Users\Admin\AppData\Local\Temp\is-7U4LQ.tmp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
"C:\Users\Admin\AppData\Local\Temp\is-7U4LQ.tmp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp" /SL5="$40228,4870743,54272,C:\Users\Admin\AppData\Local\Temp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4388

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -i
3⤵
- Executes dropped EXE
PID:3772

C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe
"C:\Users\Admin\AppData\Local\Audials Tunebite\audialstunebite32.exe" -s
3⤵
- Executes dropped EXE
PID:2316

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\Audials Tunebite\audialstunebite32.exe
Filesize
2.4MB

MD5
4af54cfbcdb28294c693ba34c088df48

SHA1
d482ea6a100049d564f3d66f03585a9d2fba662f

SHA256
fa0038f36d85c2f2b5d2bb38c6810acf43f13e91b806cbbb0690d7943a267a9f

SHA512
9eba15d80d948e753f50b1b704c2af2fff83ac60ff15f8fe62f8f7889ce6f1994cd415c33dad45762480341db2f707ca17da3ddbe39a70ae80980542ea4af98c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7U4LQ.tmp\8010aea3ba65e38b33db6b6cf96f08773b324bec8d4786b44ea032f0408be067.tmp
Filesize
680KB

MD5
66f4568e899ebb18b20a877f017f08fd

SHA1
887fb52becc444c529acf26e71147b840c7ff885

SHA256
8cf70a4ca81a1d9db93d89a13adf2feb2c1da109142ac356d14fa427694178e0

SHA512
2ea355abe2f31a7edb5b8cd96799a2843549ec82991fc64d9d8a13e0faec5849fce5864ef0148540f7246c646fd3c6e369d036450fe6a075afc57bb239410b66

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-KL111.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2316-96-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-79-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-117-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-114-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-110-0x00000000028B0000-0x0000000002952000-memory.dmp

Filesize
648KB

Download
memory/2316-109-0x00000000028B0000-0x0000000002952000-memory.dmp

Filesize
648KB

Download
memory/2316-108-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-67-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-105-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-102-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-70-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-73-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-76-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-99-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-82-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-83-0x00000000028B0000-0x0000000002952000-memory.dmp

Filesize
648KB

Download
memory/2316-88-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/2316-93-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3772-63-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3772-64-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3772-61-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/3772-59-0x0000000000400000-0x0000000000667000-memory.dmp

Filesize
2.4MB

Download
memory/4388-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4388-69-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/4560-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-68-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4560-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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