Analysis

  • max time kernel
    141s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    16-11-2024 07:04

General

  • Target

    5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.exe

  • Size

    6.4MB

  • MD5

    ad01c8fa6ec2371dfd9f57200f84e13a

  • SHA1

    0fb1d82d89253d853dcb0e5d66f4b0d2b067b48d

  • SHA256

    5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3

  • SHA512

    e46fb5132086fa003b36b0d73e94998e132a402a85ce18d8f02e6911e1a41946b11b77e7f214cb34c959ead6add677cb3842294c45e480580d66646b56b6368a

  • SSDEEP

    98304:PX4jivxv97/nhks8jVQ9MNa3EgedZ64ymjXA7QjBMh5YwE4zwJozYyazx11:vagxvJPhks8CKaDQemzBBM4wEXoYyaR

Malware Config

Signatures

  • Detect Socks5Systemz Payload 1 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Socks5systemz family
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

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

  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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.

  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.exe
    "C:\Users\Admin\AppData\Local\Temp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:1992
    • C:\Users\Admin\AppData\Local\Temp\is-6AALB.tmp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-6AALB.tmp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.tmp" /SL5="$4010A,5992012,721408,C:\Users\Admin\AppData\Local\Temp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.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:2284
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause avidenta_11132
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2648
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause avidenta_11132
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2432
      • C:\Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe
        "C:\Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:2560

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Avidenta 2.8.8\avidenta32.exe

    Filesize

    3.6MB

    MD5

    5f301b2942d42d35402c384009767e5f

    SHA1

    cf7a22c7c4a3c535b1b76d8b4fd5e17b3166ff44

    SHA256

    7909a486fb464e8332395296b6d1930b0b2e2b008bba1e68b696d315bc5b3323

    SHA512

    9bf15bc5d25853aa66fdd88b1464cac2d1d58ae556bbd53506feba88df52a775835a4ec7d1aaa1a00414044c87c2299298d1d9dc5cea91125574c63bd789307b

  • \Users\Admin\AppData\Local\Temp\is-6AALB.tmp\5179029eb225a9937cc7507b084cc8418f4d84e3c99e13b5a2a0cc8fdba75bd3.tmp

    Filesize

    2.4MB

    MD5

    438f4076e92d3c839405bab4652fe2ce

    SHA1

    046567cf90b9e87f4b3913030e1acfc0a4341279

    SHA256

    ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

    SHA512

    44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

  • \Users\Admin\AppData\Local\Temp\is-9094S.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1992-74-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/1992-2-0x0000000000401000-0x00000000004A9000-memory.dmp

    Filesize

    672KB

  • memory/1992-0-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/2284-8-0x0000000000400000-0x0000000000679000-memory.dmp

    Filesize

    2.5MB

  • memory/2284-67-0x0000000003A10000-0x0000000003DB7000-memory.dmp

    Filesize

    3.7MB

  • memory/2284-102-0x0000000003A10000-0x0000000003DB7000-memory.dmp

    Filesize

    3.7MB

  • memory/2284-73-0x0000000000400000-0x0000000000679000-memory.dmp

    Filesize

    2.5MB

  • memory/2560-79-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-69-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-70-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-82-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-85-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-88-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-91-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-92-0x0000000002B20000-0x0000000002BC2000-memory.dmp

    Filesize

    648KB

  • memory/2560-98-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-76-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-101-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-105-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-108-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-111-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-114-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-118-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB

  • memory/2560-121-0x0000000000400000-0x00000000007A7000-memory.dmp

    Filesize

    3.7MB