socks5systemz | be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486

General

Target

be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe
Size

2.8MB
MD5

d634d3edc10cc7532670e99204e5c2ea
SHA1

f555f7cc0922ee33c6d109adae263e577e7927a7
SHA256

be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486
SHA512

b4d7da9bc5852bbdc4b3d7e5027405595da6ec8ff2d7e243621d8c71c253687b9e9ec074daa578a6f11e44df7fd549432a9e85052829b2f312d932aa57863d2a
SSDEEP

49152:C96l5v8B2+2joTXXBDkxtd+tgCiN2sy2KtXCostJs15uUMx+JsaAwhz34:M6l5v8sjoTnpka7svKA3sLuUo++az34

Score

10^/10

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

resource	yara_rule
behavioral1/memory/1272-61-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/1272-84-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz
behavioral1/memory/1272-83-0x00000000008C0000-0x0000000000962000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

pid	Process
1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp
1272	batchaviconverter.exe

Loads dropped DLL 1 IoCs

pid	Process
1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp

Unexpected DNS network traffic destination 1 IoCs

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

description	ioc
Destination IP	91.211.247.248

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	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	batchaviconverter.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp
1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3380 wrote to memory of 1788	3380	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe	84
PID 3380 wrote to memory of 1788	3380	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe	84
PID 3380 wrote to memory of 1788	3380	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe	84
PID 1788 wrote to memory of 1272	1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp	87
PID 1788 wrote to memory of 1272	1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp	87
PID 1788 wrote to memory of 1272	1788	be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp	87

C:\Users\Admin\AppData\Local\Temp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe
"C:\Users\Admin\AppData\Local\Temp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3380
- C:\Users\Admin\AppData\Local\Temp\is-NV1LC.tmp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-NV1LC.tmp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp" /SL5="$602D4,2668387,56832,C:\Users\Admin\AppData\Local\Temp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of WriteProcessMemory
  PID:1788
- - C:\Users\Admin\AppData\Local\Batch AVI Converter\batchaviconverter.exe
    "C:\Users\Admin\AppData\Local\Batch AVI Converter\batchaviconverter.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    PID:1272

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\Batch AVI Converter\batchaviconverter.exe

Filesize
2.3MB

MD5
6a0e6d65545c583977c8277a2e2426a0

SHA1
ff50720c65bda352c5747368a030d5c436bcb538

SHA256
0f922828e16ddf98b9cb5448834948f9dda47f7aa5b34e7d85e4e28167f88a3a

SHA512
af95b207dce8a5731ccbed94016c732a51c64c5923d3e16f6f499885f5edbea8bdfbc2c3b89c2434defb568f276f34b857d11ec660788cfa5dca7c96f0a5fde7

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-3LPOA.tmp\_isetup\_iscrypt.dll

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-NV1LC.tmp\be481f10df2a067f715d86ce7451d4db93d3827d478c252b4569907aa764e486.tmp

Filesize
690KB

MD5
ed3c877f2d96c07199da2f286f68d4a1

SHA1
86db586b27dc0cac8c3c205e7b443cb6a827566d

SHA256
4503b347e33b265d657d7725eafd0683324030c3bf5075353bda17b3c910468c

SHA512
fe32dd36bd665ced0e7aa313160e8e4087ab91fc0db8f3998ccd5f4c7cc708fbd8c622e50d9ddb647788703358aa2c5b5c933783671b838f054d0e90ea4b28cb

Download Submit
memory/1272-51-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-76-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-91-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-36-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-39-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-37-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-88-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-83-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/1272-43-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-45-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-48-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-84-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/1272-54-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-57-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-60-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-61-0x00000000008C0000-0x0000000000962000-memory.dmp

Filesize
648KB

Download
memory/1272-67-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-70-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-73-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-82-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1272-79-0x0000000000400000-0x000000000064B000-memory.dmp

Filesize
2.3MB

Download
memory/1788-7-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/1788-41-0x0000000000400000-0x00000000004BC000-memory.dmp

Filesize
752KB

Download
memory/3380-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3380-42-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3380-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download

Analysis

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