socks5systemz | 2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9

General

Target

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe
Size

4.5MB
MD5

bbc19ffa108287fe52021ddded9dba69
SHA1

50433585a77c729abb679e4cb87427f1096e0110
SHA256

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9
SHA512

edb0d85cb6851fb3c37f72d611229876701ec15474a0a59030b1f1033f3c26b4e0b3c2b96dab1eff73737a39c4f98dda426e28bbfbf6e586351a29377b0206b0
SSDEEP

98304:mFx/NcAjG/fpvWqgZO8feye0+1nMCH0D3WBHmyY772xuwruc7/kOR/w/Y:0FcOG/Z58fefDeTW9pY7iz5r

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

erfizsq.ua

http://erfizsq.ua/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a371ea771795af8e05c645db22f31dfe339426fa12a466c553adb719a9577e55b8603e983a608ff716c1ee9c9c3b

http://erfizsq.ua/search/?q=67e28dd83d0ea428165baf167c27d78406abdd88be4b12eab517aa5c96bd86e9938e4f835a8bbc896c58e713bc90c91936b5281fc235a925ed3e00d6bd974a95129070b616e96cc92be510b866db51b9e34eed4c2b14a82966836f23d7f210c7ee9d9d3acc669016

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/400-87-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz
behavioral2/memory/400-110-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz
behavioral2/memory/400-111-0x0000000000A40000-0x0000000000AE2000-memory.dmp	family_socks5systemz

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

Processes:

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmpfanplayercloudfree32.exefanplayercloudfree32.exe

pid process

3872 2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
2272 fanplayercloudfree32.exe
400 fanplayercloudfree32.exe
Loads dropped DLL 1 IoCs

Processes:

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

pid process

3872 2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.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 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:

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

pid process

3872 2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

pid	process
3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
2272	fanplayercloudfree32.exe
400	fanplayercloudfree32.exe

pid	process
3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

description	ioc
Destination IP	152.89.198.214

pid	process
3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp

description	pid	process	target process
PID 1844 wrote to memory of 3872	1844	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
PID 1844 wrote to memory of 3872	1844	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
PID 1844 wrote to memory of 3872	1844	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
PID 3872 wrote to memory of 2272	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe
PID 3872 wrote to memory of 2272	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe
PID 3872 wrote to memory of 2272	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe
PID 3872 wrote to memory of 400	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe
PID 3872 wrote to memory of 400	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe
PID 3872 wrote to memory of 400	3872	2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp	fanplayercloudfree32.exe

C:\Users\Admin\AppData\Local\Temp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe
"C:\Users\Admin\AppData\Local\Temp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:1844

C:\Users\Admin\AppData\Local\Temp\is-C71S6.tmp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
"C:\Users\Admin\AppData\Local\Temp\is-C71S6.tmp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp" /SL5="$5006A,4429403,54272,C:\Users\Admin\AppData\Local\Temp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.exe"
2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:3872

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -i
3⤵
- Executes dropped EXE
PID:2272

C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe
"C:\Users\Admin\AppData\Local\FanPlayer Cloud Free\fanplayercloudfree32.exe" -s
3⤵
- Executes dropped EXE
PID:400

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\FanPlayer Cloud Free\fanplayercloudfree32.exe
Filesize
2.3MB

MD5
c57651818a2aba5626d613d5033f98c4

SHA1
4530cbde5007e3f4da1b8531406fb19c2bc749c7

SHA256
903512e0a7dfddc0c82a2215ec7c7acd7bdb2e1d1c77d204cac0e97c652780a8

SHA512
ba179926d8ac39c34e1cf57ca06764ef4a6847effb182ea381535ef878f01152241816f204e480a392eea88f3e784da07c096952f7e4439b311e40f50869fd6d

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-8J9J9.tmp\_isetup\_iscrypt.dll
Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-C71S6.tmp\2b22e8aa211ac89e350bdb381fb5e4b1b3867fc17434337f4fbb6c68d6c53ab9.tmp
Filesize
680KB

MD5
be79d1e21110bb810f3be263c9132022

SHA1
767627d2ec08b5e07d0bcb04121b6c745a98eff3

SHA256
596c093b48696fd634b22fbe9de676ecb80fca70aab23a35a5eb4561c58a330d

SHA512
9f7cdb7f265a52de50e44c04d5570cb7f00e97bd69c6cc61b940dea1e8cc9b59882fbab84ff7074d845a7296a7973c5e26e899932289b4e3fb2b57da9239709e

Download Submit
memory/400-94-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-78-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-118-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-115-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-111-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/400-110-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/400-109-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-68-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-106-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-103-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-71-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-74-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-75-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-100-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-81-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-84-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-87-0x0000000000A40000-0x0000000000AE2000-memory.dmp

Filesize
648KB

Download
memory/400-91-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/400-97-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/1844-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1844-69-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/1844-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/2272-65-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/2272-63-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/2272-61-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/2272-59-0x0000000000400000-0x0000000000656000-memory.dmp

Filesize
2.3MB

Download
memory/3872-16-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download
memory/3872-70-0x0000000000400000-0x00000000004BA000-memory.dmp

Filesize
744KB

Download

Analysis

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