Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    13-11-2024 06:57

General

  • Target

    47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.exe

  • Size

    5.7MB

  • MD5

    a77b03795fd546e1ce17a89770416e0a

  • SHA1

    6473da89e95a6750dfec775ec1805ec025b62ab5

  • SHA256

    47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409

  • SHA512

    b9ed6b713e84f78340ea76af9da0a987caa3cd67e58c071ff9f0c79d84e96996a37a3f6437a70eadedf6674e3e9f3d99a21eda71f5607f9dd833c3d937b480aa

  • SSDEEP

    98304:PX41O2pXtg27SK59Ej2oVmV1J7bXc012r+z0nP7qT6D07uyazx11:viXu2159Ej2oUVf4r+AnP2TeyaR

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\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.exe
    "C:\Users\Admin\AppData\Local\Temp\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.exe"
    1⤵
    • Loads dropped DLL
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Users\Admin\AppData\Local\Temp\is-O6CUO.tmp\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-O6CUO.tmp\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.tmp" /SL5="$400E8,5263804,721408,C:\Users\Admin\AppData\Local\Temp\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.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:2692
      • C:\Windows\SysWOW64\net.exe
        "C:\Windows\system32\net.exe" pause avidenta_11131
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2708
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 pause avidenta_11131
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1956
      • C:\Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe
        "C:\Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe" -i
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:1948

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • \Users\Admin\AppData\Local\Avidenta 2.7.7\avidenta.exe

    Filesize

    3.5MB

    MD5

    19f9733dcd58aff930f87acdaf4a09fb

    SHA1

    4076eabd809ca63ab6619a9d85c8f5d686f89728

    SHA256

    ef9c847985c1588a5d5f85ecafdace935d98c10ac9411e5c7040a7900a95fc43

    SHA512

    92bfc472ef3a965f6993163aa32e14273de23061bed77125bd6d165a42fe39c83e2e07d33b86ad68f9893a0c347cac7f063e667440422cc2e94ea45750adeca8

  • \Users\Admin\AppData\Local\Temp\is-O6CUO.tmp\47a3a02bf52254b5776960a68c2f17aa773cb66072843638b19cb582e6ef8409.tmp

    Filesize

    2.4MB

    MD5

    438f4076e92d3c839405bab4652fe2ce

    SHA1

    046567cf90b9e87f4b3913030e1acfc0a4341279

    SHA256

    ad1772bd4f07c11a626de2f257d2cc44b63ff9150be9386512840a2381e97b7e

    SHA512

    44985fe1773cc9d1a4ee5ed0e5bcac058c0cd064d3a1e782d9c424efeb89185528e19a177ecfafa173b76b049301d5ff95dafc0b36715a0847eec3f6b4e1506b

  • \Users\Admin\AppData\Local\Temp\is-TB74F.tmp\_isetup\_iscrypt.dll

    Filesize

    2KB

    MD5

    a69559718ab506675e907fe49deb71e9

    SHA1

    bc8f404ffdb1960b50c12ff9413c893b56f2e36f

    SHA256

    2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

    SHA512

    e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

  • memory/1948-98-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-101-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-121-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-118-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-69-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-70-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-114-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-111-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-76-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-79-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-82-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-85-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-88-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-91-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-92-0x0000000002B40000-0x0000000002BE2000-memory.dmp

    Filesize

    648KB

  • memory/1948-108-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/1948-105-0x0000000000400000-0x000000000078D000-memory.dmp

    Filesize

    3.6MB

  • memory/2316-2-0x0000000000401000-0x00000000004A9000-memory.dmp

    Filesize

    672KB

  • memory/2316-74-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/2316-0-0x0000000000400000-0x00000000004BE000-memory.dmp

    Filesize

    760KB

  • memory/2692-102-0x0000000005990000-0x0000000005D1D000-memory.dmp

    Filesize

    3.6MB

  • memory/2692-12-0x0000000000400000-0x0000000000679000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-73-0x0000000000400000-0x0000000000679000-memory.dmp

    Filesize

    2.5MB

  • memory/2692-67-0x0000000005990000-0x0000000005D1D000-memory.dmp

    Filesize

    3.6MB