socks5systemz | c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce

General

Target

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe
Size

4.7MB
MD5

5183d741aab2a36fdd34be7df5c971bc
SHA1

daf3d1764b4e59332f3d52680ad2ce104a56dd8e
SHA256

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce
SHA512

1e6d648ccb221d7f94b4bdfcd8e2d326fbd5c19b60739ec1551cd923b50b27c24bb4911c382936d345401bf97a39af1d09ff8f3f8192c86e9c0987ca2617c6e4
SSDEEP

98304:mlDUGseE0MSflVR8qpZEugaGZvMqKK6C1OAJX90V6IIwNR7JTu6mWQiZx:iUGsebl8qpZDsEqV6CPJX9O6IIwTtTpj

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

aycnfpe.ru

http://aycnfpe.ru/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa1de8889b5e4fa9281ae978a771ea771795af8e05c645db22f31dfe339426fa11a366c350adb719a9577e55b8603e983a608ff712c2ec959332

http://aycnfpe.ru/search/?q=67e28dd86809f27b415ba51b7c27d78406abdd88be4b12eab517aa5c96bd86ec93854f845a8bbc896c58e713bc90c94836b5281fc235a925ed3e04d6bd974a95129070b616e96cc92be510b866db52bee348ee4c2b14a82966836f23d7f210c7ee9d9939ce6f9f1f

Signatures

Detect Socks5Systemz Payload 6 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4524-84-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4524-108-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4524-107-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4524-125-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4524-128-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4524-129-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz

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

Processes:

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmplinuxmultiMediastudio32.exelinuxmultiMediastudio32.exe

pid process

3272 c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
3052 linuxmultiMediastudio32.exe
4524 linuxmultiMediastudio32.exe
Loads dropped DLL 1 IoCs

Processes:

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

pid process

3272 c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.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:

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

pid process

3272 c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

pid	process
3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
3052	linuxmultiMediastudio32.exe
4524	linuxmultiMediastudio32.exe

pid	process
3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

description	ioc
Destination IP	141.98.234.31

pid	process
3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exec320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp

description	pid	process	target process
PID 3616 wrote to memory of 3272	3616	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
PID 3616 wrote to memory of 3272	3616	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
PID 3616 wrote to memory of 3272	3616	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
PID 3272 wrote to memory of 3052	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe
PID 3272 wrote to memory of 3052	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe
PID 3272 wrote to memory of 3052	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe
PID 3272 wrote to memory of 4524	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe
PID 3272 wrote to memory of 4524	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe
PID 3272 wrote to memory of 4524	3272	c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp	linuxmultiMediastudio32.exe

C:\Users\Admin\AppData\Local\Temp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe
"C:\Users\Admin\AppData\Local\Temp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3616

C:\Users\Admin\AppData\Local\Temp\is-MLDV3.tmp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
"C:\Users\Admin\AppData\Local\Temp\is-MLDV3.tmp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp" /SL5="$70204,4673706,54272,C:\Users\Admin\AppData\Local\Temp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3272

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -i
3⤵
- Executes dropped EXE
PID:3052

C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
"C:\Users\Admin\AppData\Local\Linux MultiMedia Studio\linuxmultiMediastudio32.exe" -s
3⤵
- Executes dropped EXE
PID:4524

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\Linux MultiMedia Studio\linuxmultiMediastudio32.exe
Filesize
2.9MB

MD5
1a49b62ffe4d7ee27245bfb59e963c34

SHA1
6c7467c8cda0c7ef1410f772494b985ae465f9ad

SHA256
9fe0ddff1394f78f3c4e06dc68369240d6eae8032291ef310feee388de8dd52e

SHA512
2b7c0f9b1e85faa5aa474849d2b636f2e83ac132e0cd805e0b3da9fd8e53b91f9aa020c1e9a53c3a59d63e32b871daa7c4ae8fae2f9743701528aa7c04bc942e

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-MLDV3.tmp\c320ecffda839d9a6e76c0035dcb20d75dc59e7827dce90d7c449294fba925ce.tmp
Filesize
680KB

MD5
da3e3293eadae0b9e8e0bb85b53bf263

SHA1
6fd7ba9a4f76f8500f7ec3d820f70ca0c869173f

SHA256
ecf5f7145a55f9014f86014fd3d9a6048b8f29e653409604e4d12cb1bda2302d

SHA512
c1b4a03f7f657f1db5bbf21f68ebce7373b90135698eb5fe4c432630e7066f0c89eeddd0f6cbb0af631ad62026992503df42e31e6999b166a541044c688a0fb8

Download Submit
\Users\Admin\AppData\Local\Temp\is-JA669.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/3052-59-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/3052-60-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/3052-64-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/3272-12-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3272-68-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3616-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3616-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3616-67-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4524-84-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4524-103-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-75-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-78-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-81-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-69-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-86-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-91-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-94-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-97-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-100-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-72-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-106-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-108-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4524-107-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4524-112-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-115-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-118-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-121-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-124-0x0000000000400000-0x00000000006DD000-memory.dmp

Filesize
2.9MB

Download
memory/4524-125-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4524-128-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4524-129-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download

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