socks5systemz | 736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27

General

Target

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe
Size

5.9MB
MD5

c978992e0bfb6abe4734e80c0da7c02f
SHA1

6d4f12291c920866920c25e7b08f73b50b79607d
SHA256

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27
SHA512

1b12b18eb00161501727e339c6c5f0c8a1f683d94dae1aaf42be8061d6adb1f4d780420e6c6eab6dbb63efee8118aa9d81d8a93e0303fc8ffb9dfa9bb862a57f
SSDEEP

98304:4ekKk8htLEDv4JF5mehKZZ7SPRlOBhj6K9ooG37n9UB/scC+XLkwDjGeLUzX8dyM:YDatW4VFU/2PfOBlrooWM/scCCLUIdyM

Score

10^/10

socks5systemz botnet discovery

Malware Config

Signatures

Detect Socks5Systemz Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4308-108-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz
behavioral2/memory/4308-132-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz
behavioral2/memory/4308-131-0x0000000000A90000-0x0000000000B32000-memory.dmp	family_socks5systemz

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

Executes dropped EXE 2 IoCs

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmphdvideoconverterfox125.exe

pid	Process
4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp
4308	hdvideoconverterfox125.exe

Loads dropped DLL 1 IoCs

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

pid	Process
4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.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

System Location Discovery: System Language Discovery 1 TTPs 5 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

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmphdvideoconverterfox125.exenet.exenet1.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	hdvideoconverterfox125.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	net1.exe

Runs net.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

pid	Process
4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp
4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

pid	Process
4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmpnet.exe

description	pid	Process	procid_target
PID 3668 wrote to memory of 4884	3668	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe	85
PID 3668 wrote to memory of 4884	3668	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe	85
PID 3668 wrote to memory of 4884	3668	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe	85
PID 4884 wrote to memory of 4596	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	87
PID 4884 wrote to memory of 4596	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	87
PID 4884 wrote to memory of 4596	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	87
PID 4884 wrote to memory of 4308	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	89
PID 4884 wrote to memory of 4308	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	89
PID 4884 wrote to memory of 4308	4884	736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp	89
PID 4596 wrote to memory of 764	4596	net.exe	90
PID 4596 wrote to memory of 764	4596	net.exe	90
PID 4596 wrote to memory of 764	4596	net.exe	90

C:\Users\Admin\AppData\Local\Temp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe
"C:\Users\Admin\AppData\Local\Temp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.exe"
1⤵
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3668
- C:\Users\Admin\AppData\Local\Temp\is-5LB6G.tmp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp
  "C:\Users\Admin\AppData\Local\Temp\is-5LB6G.tmp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp" /SL5="$6021C,5968641,56832,C:\Users\Admin\AppData\Local\Temp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.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:4884
- - C:\Windows\SysWOW64\net.exe
    "C:\Windows\system32\net.exe" pause hd_video_converter_fox_125
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4596
  - - C:\Windows\SysWOW64\net1.exe
      C:\Windows\system32\net1 pause hd_video_converter_fox_125
      4⤵
      System Location Discovery: System Language Discovery
      PID:764
- - C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe
    "C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe" -i
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    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 Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\HD Video Converter Fox 1.2.5\hdvideoconverterfox125.exe

Filesize
4.1MB

MD5
4efb82b24eea7f4914d901afcf35fc0c

SHA1
adc3c0c6b9f834f2b55b6b561f810b4b9b97e682

SHA256
e5a9951d71cf42880c902c1f34b8b892772e07a768746700b321c158102700ed

SHA512
b028a4e6b4b012172b8de12811f896d417b9bb3abbfb058f19c923169de5037c5827366d33cc91dc1e1c469e6ea5c33375f41fe74de573f92203e7188870adcd

Download Submit
C:\Users\Admin\AppData\Local\Temp\is-5LB6G.tmp\736a73ef23e3bc92da0434164a612fcafb6a1d11c720622f92959849b3594c27.tmp

Filesize
692KB

MD5
3052616049354da32d18cdcb8bd39290

SHA1
228828bb739191b16c583e5efbe45a864f8669c1

SHA256
a70d41bf71345a889675b9e7d29f7dc1d37cffe0682c9651a04c48a6be335c5d

SHA512
b06b78f3f2dd30e918968921026b9eb92088ab345cb4ad1a120bd970f11c41f1702077304229c5501563d137de8c98aae7864b1d34f24b0cb65bafb43d0db0a3

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

Filesize
2KB

MD5
a69559718ab506675e907fe49deb71e9

SHA1
bc8f404ffdb1960b50c12ff9413c893b56f2e36f

SHA256
2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

SHA512
e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

Download Submit
memory/3668-89-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3668-0-0x0000000000400000-0x0000000000414000-memory.dmp

Filesize
80KB

Download
memory/3668-2-0x0000000000401000-0x000000000040B000-memory.dmp

Filesize
40KB

Download
memory/4308-98-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-107-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-87-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-139-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-84-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-91-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-92-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-95-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-136-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-101-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-104-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-85-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-108-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/4308-114-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-117-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-118-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-121-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-124-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-127-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-130-0x0000000000400000-0x0000000000824000-memory.dmp

Filesize
4.1MB

Download
memory/4308-132-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/4308-131-0x0000000000A90000-0x0000000000B32000-memory.dmp

Filesize
648KB

Download
memory/4884-6-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download
memory/4884-88-0x0000000000400000-0x00000000004BD000-memory.dmp

Filesize
756KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads