socks5systemz | d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6

General

Target

d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe
Size

4.4MB
MD5

997fa8b3091257c3187d92e5acc5d949
SHA1

698d8a36bede6f524494b0f02049d2610f589a94
SHA256

d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6
SHA512

2e80c507f9b6f81c287b7d245c0c2bfdfdbf56e0b31fe57f7b59efbb001d5f0eaf80ffaabcebf574ab2de85aa11a50f035845aa44efe1326e144c843b3028ce8
SSDEEP

98304:0+oxIebTQG32c4Rxq2i9HOZj1w8e1CS9MvvY:0+yIebN2cKxqP9HOx1/QGvY

Score

10^/10

socks5systemz botnet discovery

Malware Config

Extracted

Family

socks5systemz

C2

bfssnuw.com

http://bfssnuw.com/search/?q=67e28dd8645df12f145cac4c7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4ce8889b5e4fa9281ae978a471ea771795af8e05c645db22f31dfe339426fa11af66c152adb719a9577e55b8603e983a608afd13c8e79d9a39

http://bfssnuw.com/search/?q=67e28dd8645df12f145cac4c7c27d78406abdd88be4b12eab517aa5c96bd86e8978549885a8bbc896c58e713bc90c91936b5281fc235a925ed3e07d6bd974a95129070b616e96cc92be510b866db52b2e34aec4c2b14a82966836f23d7f210c7eb979833c5679614

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral2/memory/2784-90-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2784-120-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz
behavioral2/memory/2784-119-0x0000000000940000-0x00000000009E2000-memory.dmp	family_socks5systemz

Socks5Systemz
Socks5Systemz is a botnet written in C++.
botnet socks5systemz
Socks5systemz family
socks5systemz

Executes dropped EXE 3 IoCs

pid	Process
3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp
2276	radiobuster32.exe
2784	radiobuster32.exe

Loads dropped DLL 1 IoCs

pid	Process
3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp

Unexpected DNS network traffic destination 3 IoCs

Network traffic to other servers than the configured DNS servers was detected on the DNS port.

description	flow	ioc	pid	Process
Destination IP	36	141.98.234.31	2784	radiobuster32.exe
Destination IP	38	152.89.198.214	2784	radiobuster32.exe
Destination IP	40	91.211.247.248	2784	radiobuster32.exe

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

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	radiobuster32.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 4424 wrote to memory of 3260	4424	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe	87
PID 4424 wrote to memory of 3260	4424	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe	87
PID 4424 wrote to memory of 3260	4424	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe	87
PID 3260 wrote to memory of 2276	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	89
PID 3260 wrote to memory of 2276	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	89
PID 3260 wrote to memory of 2276	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	89
PID 3260 wrote to memory of 2784	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	90
PID 3260 wrote to memory of 2784	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	90
PID 3260 wrote to memory of 2784	3260	d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp	90

C:\Users\Admin\AppData\Local\Temp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe
"C:\Users\Admin\AppData\Local\Temp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4424
- C:\Users\Admin\AppData\Local\Temp\is-IQKGU.tmp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-IQKGU.tmp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp" /SL5="$401EE,4406555,54272,C:\Users\Admin\AppData\Local\Temp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3260
- - C:\Users\Admin\AppData\Local\Radio Buster\radiobuster32.exe
    "C:\Users\Admin\AppData\Local\Radio Buster\radiobuster32.exe" -i
    3⤵
    - Executes dropped EXE
    PID:2276
- - C:\Users\Admin\AppData\Local\Radio Buster\radiobuster32.exe
    "C:\Users\Admin\AppData\Local\Radio Buster\radiobuster32.exe" -s
    3⤵
    - Executes dropped EXE
    - Unexpected DNS network traffic destination
    - System Location Discovery: System Language Discovery
    PID:2784

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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Radio Buster\libeay32.dll

Filesize
1.9MB

MD5
876a839023b8f962a72d295da7495734

SHA1
62a7728679bc18784b1fbf1d013f7cece18cbec9

SHA256
a757d773da406411fb977761f6e56f016d48d224aedaf3d875ed4d4a9ede6158

SHA512
e1b23a2f5ec0100ff874ca075bbd0f90e9065a90fec66861f99df603d7aaa9db8e8ec326710fdc11ad41d01befe4ea3077136127acf613614d0d12ff23bec6c1

Download Submit
C:\Users\Admin\AppData\Local\Radio Buster\radiobuster32.exe

Filesize
2.1MB

MD5
bc25ade7e5af730e08fae4678fd76556

SHA1
0e230a53d80e0f4c9063b6bedcb223eb2ab8c470

SHA256
b6b4a3f44e89a2a3929c9bb1e2e8038d3b1733d370733d008fecf859f5a9de2a

SHA512
74a162a215f395a5dfdfcd09bf3ed02dfb9224c9270184e56101a63683c4f6c12ebb6fab21e25aba7558ffe69e7bfb51191cdccbac5b7fb919e5b33039e894b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-IQKGU.tmp\d60edf09387123d96951ea7d8c11fe322bd2354e8978c03f25d2766a3fab95e6.tmp

Filesize
696KB

MD5
ebc93acc74258c93008da5c398191619

SHA1
ac84456d9b7ef7a43c88c5736fb37ca59f61468e

SHA256
9df6a092d9a1867002e8399641ab5cabc8e251c41c7c03e725a754f5ab470f3f

SHA512
b3afd516c655de55bbbcfb68d3aca1f4f0a8bd40555c888f193adc06d800ca8a11ec56d2fe948840c42a9940f2be30bf4aff670d3aa9127dca3679df023d7cb1

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-ULKRU.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/2276-64-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2276-65-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2276-59-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2276-60-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-77-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-86-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-119-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2784-69-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-120-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2784-118-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-73-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-74-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-115-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-80-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-83-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-112-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-91-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-90-0x0000000000940000-0x00000000009E2000-memory.dmp

Filesize
648KB

Download
memory/2784-97-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-100-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-103-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-106-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/2784-109-0x0000000000400000-0x000000000061B000-memory.dmp

Filesize
2.1MB

Download
memory/3260-13-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/3260-70-0x0000000000400000-0x00000000004BE000-memory.dmp

Filesize
760KB

Download
memory/4424-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-71-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/4424-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

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