socks5systemz | 5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918

General

Target

5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe
Size

4.0MB
MD5

d61fd13478669dabaf67f7cb85620671
SHA1

f69aeb1afdbee98135bc7667a8d532fa8531f854
SHA256

5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918
SHA512

6f03ad5efcf685c025bde8b67da536237533835b5a50c6934c8ac8a7af4ea0469fb70d63cba3d954326191ba941a36231aac6a20136477cfc830d2559a2ea1ae
SSDEEP

98304:7anqR7C2U9xgTQJOSAtEj0QCnfXUfJHJoKeKL4fmMQaUI6KZlcj4J:IcDeGQJO5EgFUfJpogL4nUI3lp

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

http://bxrvast.com/search/?q=67e28dd8395df37a1507f81b7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978ff71ea771795af8e05c644db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ffc14c3ed979e39

http://bxrvast.com/search/?q=67e28dd8395df37a1507f81b7c27d78406abdd88be4b12eab517aa5c96bd86eb978144835a8bbc896c58e713bc90c91936b5281fc235a925ed3e5cd6bd974a95129070b617e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee969f38cf6d9214

Signatures

Detect Socks5Systemz Payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2740-71-0x0000000000BB0000-0x0000000000C52000-memory.dmp	family_socks5systemz
behavioral2/memory/2740-75-0x0000000000BB0000-0x0000000000C52000-memory.dmp	family_socks5systemz
behavioral2/memory/2740-84-0x0000000000BB0000-0x0000000000C52000-memory.dmp	family_socks5systemz
behavioral2/memory/2740-97-0x0000000000BB0000-0x0000000000C52000-memory.dmp	family_socks5systemz
behavioral2/memory/2740-98-0x0000000000BB0000-0x0000000000C52000-memory.dmp	family_socks5systemz

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

Processes:

is-J8JBR.tmpfreewaveeditor.exefreewaveeditor.exe

pid process

4244 is-J8JBR.tmp
4656 freewaveeditor.exe
2740 freewaveeditor.exe
Loads dropped DLL 3 IoCs

Processes:

is-J8JBR.tmp

pid process

4244 is-J8JBR.tmp
4244 is-J8JBR.tmp
4244 is-J8JBR.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

pid	process
4244	is-J8JBR.tmp
4656	freewaveeditor.exe
2740	freewaveeditor.exe

pid	process
4244	is-J8JBR.tmp
4244	is-J8JBR.tmp
4244	is-J8JBR.tmp

description	ioc
Destination IP	45.155.250.90

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exeis-J8JBR.tmp

description	pid	process	target process
PID 2492 wrote to memory of 4244	2492	5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe	is-J8JBR.tmp
PID 2492 wrote to memory of 4244	2492	5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe	is-J8JBR.tmp
PID 2492 wrote to memory of 4244	2492	5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe	is-J8JBR.tmp
PID 4244 wrote to memory of 4656	4244	is-J8JBR.tmp	freewaveeditor.exe
PID 4244 wrote to memory of 4656	4244	is-J8JBR.tmp	freewaveeditor.exe
PID 4244 wrote to memory of 4656	4244	is-J8JBR.tmp	freewaveeditor.exe
PID 4244 wrote to memory of 2740	4244	is-J8JBR.tmp	freewaveeditor.exe
PID 4244 wrote to memory of 2740	4244	is-J8JBR.tmp	freewaveeditor.exe
PID 4244 wrote to memory of 2740	4244	is-J8JBR.tmp	freewaveeditor.exe

C:\Users\Admin\AppData\Local\Temp\5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe
"C:\Users\Admin\AppData\Local\Temp\5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:2492

C:\Users\Admin\AppData\Local\Temp\is-7HEQS.tmp\is-J8JBR.tmp
"C:\Users\Admin\AppData\Local\Temp\is-7HEQS.tmp\is-J8JBR.tmp" /SL4 $4022E "C:\Users\Admin\AppData\Local\Temp\5cdb979817511a458777ab82845fe310f9871855d42890e0984cc1a77c5a4918.exe" 3815838 52224
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of WriteProcessMemory
PID:4244

C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
"C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -i
3⤵
- Executes dropped EXE
PID:4656

C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
"C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe" -s
3⤵
- Executes dropped EXE
PID:2740

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

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Downloads

C:\Users\Admin\AppData\Local\Free Wave Editor\freewaveeditor.exe
Filesize
3.9MB

MD5
be973ffc738fc211a9df715e3c27a741

SHA1
daab3e9547dd8860e426d0470eda325c9963ff38

SHA256
dbc90b1ede2f935063bd77233f77b0b8f68773947c29188674b691b53f584ddd

SHA512
9f50c67a488d156f37805367ba4d643f79c1d72530a9fb33b565dc830675570f1fd3808f1ef3103c373955d1f7d1b8e9c7dda8bb907fc3ad27a12e4f16a8d947

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-7HEQS.tmp\is-J8JBR.tmp
Filesize
648KB

MD5
d77831f61dcf6e829462461b8e171702

SHA1
d282fba3fe820c5e40036c6b504e6e20350565de

SHA256
81f4d36d6f7bf1d0fb1ad18a9746f79948bbb72d04070f232fd64778ccc9323d

SHA512
45201c51f074602714aaa3a612eff933eba7a18c2d9a87783530dbebfe752369a5a1c1c61772885786c499ae90220d079ed6e807ff4172465a73c8001e4ea06c

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M036G.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-M036G.tmp\_isetup\_isdecmp.dll
Filesize
13KB

MD5
a813d18268affd4763dde940246dc7e5

SHA1
c7366e1fd925c17cc6068001bd38eaef5b42852f

SHA256
e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

SHA512
b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

Download Submit
memory/2492-53-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2492-2-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2492-0-0x0000000000400000-0x0000000000413000-memory.dmp

Filesize
76KB

Download
memory/2740-84-0x0000000000BB0000-0x0000000000C52000-memory.dmp

Filesize
648KB

Download
memory/2740-71-0x0000000000BB0000-0x0000000000C52000-memory.dmp

Filesize
648KB

Download
memory/2740-105-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-102-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-51-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-52-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-98-0x0000000000BB0000-0x0000000000C52000-memory.dmp

Filesize
648KB

Download
memory/2740-97-0x0000000000BB0000-0x0000000000C52000-memory.dmp

Filesize
648KB

Download
memory/2740-55-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-96-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-59-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-60-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-63-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-66-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-69-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-93-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-74-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-75-0x0000000000BB0000-0x0000000000C52000-memory.dmp

Filesize
648KB

Download
memory/2740-80-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-83-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-90-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/2740-87-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/4244-7-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/4244-56-0x0000000002440000-0x0000000002441000-memory.dmp

Filesize
4KB

Download
memory/4244-54-0x0000000000400000-0x00000000004B1000-memory.dmp

Filesize
708KB

Download
memory/4656-44-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/4656-43-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/4656-48-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download
memory/4656-47-0x0000000000400000-0x00000000007F3000-memory.dmp

Filesize
3.9MB

Download

Analysis

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