socks5systemz | 6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3

General

Target

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe
Size

5.0MB
MD5

7747add48675a6bd54a62e1bce921610
SHA1

cc0c6b164d758370596dc0fca7a5ae421fa4e0ea
SHA256

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3
SHA512

e83370efd88998b873a1b236229bdb2e8102b1219e19dd31be1c1426edd802d5e48f41de112e3c87911a3848c3342f10f98cf7de2fdaa0f9233eb6e01f1fa362
SSDEEP

98304:mJyD+NUTH25f5glR4LJMlncmyi70pC+3qw8Y2wXtNZls7xxs8bj4onqzmN6/:6ItTRyLsvQafY2wVlAqkvqzr/

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bumwmbz.com

http://bumwmbz.com/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4fe8889b5e4fa9281ae978a271ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff719c8eb939b33

http://bumwmbz.com/search/?q=67e28dd86f59a17b435afa187c27d78406abdd88be4b12eab517aa5c96bd86ec958349865a8bbc896c58e713bc90c91a36b5281fc235a925ed3e01d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9233c969971e

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4308-86-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4308-110-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz
behavioral2/memory/4308-111-0x0000000002800000-0x00000000028A2000-memory.dmp	family_socks5systemz

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

Processes:

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmpstarsaudioconverter.exestarsaudioconverter.exe

pid process

5056 6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
3772 starsaudioconverter.exe
4308 starsaudioconverter.exe
Loads dropped DLL 1 IoCs

Processes:

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

pid process

5056 6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.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:

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

pid process

5056 6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

pid	process
5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
3772	starsaudioconverter.exe
4308	starsaudioconverter.exe

pid	process
5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

description	ioc
Destination IP	45.155.250.90

pid	process
5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp

description	pid	process	target process
PID 952 wrote to memory of 5056	952	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
PID 952 wrote to memory of 5056	952	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
PID 952 wrote to memory of 5056	952	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
PID 5056 wrote to memory of 3772	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe
PID 5056 wrote to memory of 3772	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe
PID 5056 wrote to memory of 3772	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe
PID 5056 wrote to memory of 4308	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe
PID 5056 wrote to memory of 4308	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe
PID 5056 wrote to memory of 4308	5056	6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp	starsaudioconverter.exe

C:\Users\Admin\AppData\Local\Temp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe
"C:\Users\Admin\AppData\Local\Temp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:952

C:\Users\Admin\AppData\Local\Temp\is-0VK7L.tmp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
"C:\Users\Admin\AppData\Local\Temp\is-0VK7L.tmp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp" /SL5="$40228,5033381,54272,C:\Users\Admin\AppData\Local\Temp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:5056

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe" -i
3⤵
- Executes dropped EXE
PID:3772

C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe
"C:\Users\Admin\AppData\Local\OrangeStars Audio Converter\starsaudioconverter.exe" -s
3⤵
- Executes dropped EXE
PID:4308

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\OrangeStars Audio Converter\starsaudioconverter.exe
Filesize
2.6MB

MD5
849eeeec8fb426a222c168d8bdb56830

SHA1
b86d644ac0b169768f72fd2e67e7bc51335b254b

SHA256
b290aa5bc00e29a1c4195017a332c72486842238ac4a2f02e4decd427a7b586e

SHA512
721c849e51b05fdfbdb3d97063dbb90cdeb228a0e341857cd4a1dd9af9a84b709c62d91096ae3f28ba0ccafa0488c91a4e68d10388e658487ddaed04059d23ae

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-0VK7L.tmp\6ac39242eaca3dfa48eae280631fb060da7c017cf9d8880fd67b00a24ae40bb3.tmp
Filesize
680KB

MD5
7b17001e9962a8c05608c4f1daf9ef32

SHA1
4e6761d6376029f4693d97ae693bdbdace2bbc92

SHA256
66588c4f0da8cd01e0b13b2f70f30e4f540d8ac299a3e4a218070c3097a8f262

SHA512
e973b087584bb1b8b2279a337e46f72b438018df405f5664cc5a8a427e25c3b1b163a3d6c685428846a38a6d5ee03bf1647d17478c62f5d8e45084acdbb73eca

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

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/952-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/952-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/952-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3772-59-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/3772-60-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/3772-65-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/3772-64-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-74-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-89-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-118-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-71-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-115-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-77-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-80-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-83-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-86-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4308-68-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-94-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-97-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-100-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-103-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-106-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-109-0x0000000000400000-0x0000000000692000-memory.dmp

Filesize
2.6MB

Download
memory/4308-110-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/4308-111-0x0000000002800000-0x00000000028A2000-memory.dmp

Filesize
648KB

Download
memory/5056-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/5056-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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