socks5systemz | 99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f

General

Target

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe
Size

5.6MB
MD5

2eb075702e891721b5b86a8831498b20
SHA1

0d5d63c72cd0001e2fea80703dc2949ba10a0a01
SHA256

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f
SHA512

07956d04e1155bb11ab23021803ec37ccfdd5fa172ad97c5ced96ef2386c81b99b44c3d32caab17d71c76c7a9dc098ea1b2da8a9ca18072c02db00ef655eb39a
SSDEEP

98304:m9pFaDbWXEfqjamGFiVL6Jw6vNQ7bPe03Ioe9TFrritJ7YfiZpAApkQJneto6Jfm:O4D6uqmmaU6XNQfPe03IoN7QgfpkQZeA

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

erwvbvn.ua

Signatures

Detect Socks5Systemz Payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1052-91-0x0000000002960000-0x0000000002A02000-memory.dmp	family_socks5systemz

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

Processes:

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmpsvomediaplayer.exesvomediaplayer.exe

pid process

2132 99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
3504 svomediaplayer.exe
1052 svomediaplayer.exe

Loads dropped DLL 3 IoCs

Processes:

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp

pid	process
2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp

Unexpected DNS network traffic destination 3 IoCs
Network traffic to other servers than the configured DNS servers was detected on the DNS port.

Processes:

description ioc

Destination IP 152.89.198.214
Destination IP 91.211.247.248
Destination IP 152.89.198.214
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:

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp

pid process

2132 99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp

description	ioc
Destination IP	152.89.198.214
Destination IP	91.211.247.248
Destination IP	152.89.198.214

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp

description	pid	process	target process
PID 2324 wrote to memory of 2132	2324	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
PID 2324 wrote to memory of 2132	2324	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
PID 2324 wrote to memory of 2132	2324	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
PID 2132 wrote to memory of 3504	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe
PID 2132 wrote to memory of 3504	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe
PID 2132 wrote to memory of 3504	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe
PID 2132 wrote to memory of 1052	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe
PID 2132 wrote to memory of 1052	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe
PID 2132 wrote to memory of 1052	2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp	svomediaplayer.exe

C:\Users\Admin\AppData\Local\Temp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe
"C:\Users\Admin\AppData\Local\Temp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2324

C:\Users\Admin\AppData\Local\Temp\is-UOFC6.tmp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
"C:\Users\Admin\AppData\Local\Temp\is-UOFC6.tmp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp" /SL5="$6021E,5656207,54272,C:\Users\Admin\AppData\Local\Temp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:2132

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -i
3⤵
- Executes dropped EXE
PID:3504

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
"C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe" -s
3⤵
- Executes dropped EXE
PID:1052

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

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Downloads

C:\Users\Admin\AppData\Local\SVO Media Player\svomediaplayer.exe
Filesize
3.0MB

MD5
ff71e95ee87e4ecbd9e8b6b4ebf470c8

SHA1
e05be7f1ee06fab33e5dac77811e79e38de0cbce

SHA256
fc1ea4ea4982903c26c153aa88720ee8b8392054f1acc14e8b3e73922171bd85

SHA512
5a3c72341cab0e462d152c3f9abd8de38c0fbb87368789ae3ce73727c28ad9d635ddd5e63d38be494ee5ec39f83340e5e572cf5d165b256224f21d37e91c6d12

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-S93JJ.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-S93JJ.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-UOFC6.tmp\99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
Filesize
680KB

MD5
548dec969992f3e928d7c5bcf6dbeccf

SHA1
f4da2c90b95749fbb89e1a16f55719078cb128aa

SHA256
9a883c56e3cd5e476c9baa539c1b5d0e877dfade2714040c84ed5f098665b768

SHA512
e3980bb2bc9a9146c37bae8c60e80bc5fa164cd767fad3c046046d1517ca24780191ab98526bc94392d6a55fa486ef77857359eadef0466c6abf2b42dcec4321

Download Submit
memory/1052-100-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-106-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-121-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-118-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-115-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-112-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-73-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-109-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-103-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-76-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-79-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-80-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-83-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-86-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-89-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/1052-91-0x0000000002960000-0x0000000002A02000-memory.dmp

Filesize
648KB

Download
memory/1052-94-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/2132-75-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2132-13-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/2324-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2324-74-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/2324-3-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/3504-69-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3504-66-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download
memory/3504-65-0x0000000000400000-0x0000000000705000-memory.dmp

Filesize
3.0MB

Download

pid	process
2132	99f1b0f7555cd3ea1601a11ead5a7b43de9b77291d94c10fc66b79c31ebe073f.tmp
3504	svomediaplayer.exe
1052	svomediaplayer.exe

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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