Resubmissions

24/03/2024, 18:24

240324-w19nqaee97 10

24/03/2024, 18:21

240324-wzd6eshd8s 10

Analysis

  • max time kernel
    147s
  • max time network
    137s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    24/03/2024, 18:24

General

  • Target

    70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe

  • Size

    2.2MB

  • MD5

    7e73912ed93da7fec76cf2dc5b02a619

  • SHA1

    f41dab4f82d074ebb604c359f19ee17365bfebbf

  • SHA256

    70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7

  • SHA512

    d94c839f4d7c296a7b55b03b4694a38261b86695afbac92a921894f044db75219100a6f5590b1704a8b13a3355afc1596f817131b625282a4fe004bf17f5d814

  • SSDEEP

    49152:32qdexQWtsW8e1kD9XgbaF2TtOM9UlNQ8qQ1gVWWqjxPAI:mqdexRCe1kJgW2BOV75sqNPAI

Malware Config

Extracted

Family

socks5systemz

C2

http://bdendcv.com/search/?q=67e28dd83d5fa62d1358fa4d7c27d78406abdd88be4b12ebb517aa5c96bd86ed82df14d714bca5817673aa4de8889b5e4fa9281ae978ff71ea771795af8e05c642db22f31df92d8b38e316a667d307eca743ec4c2b07b52966923a668dff15c7eb93

Signatures

  • Detect Socks5Systemz Payload 2 IoCs
  • Socks5Systemz

    Socks5Systemz is a botnet written in C++.

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 5 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.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 17 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of WriteProcessMemory 15 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe
    "C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2032
    • C:\Users\Admin\AppData\Local\Temp\is-O9CMP.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-O9CMP.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp" /SL5="$70124,1969563,54272,C:\Users\Admin\AppData\Local\Temp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:1116
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -i
        3⤵
        • Executes dropped EXE
        PID:2588
      • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe
        "C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe" -s
        3⤵
        • Executes dropped EXE
        PID:2508
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2704

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          640KB

          MD5

          284d09feaf2aa38d555b43ee3ed0b795

          SHA1

          9879579cd6c43b46894a6c2355781cbdcc1b929c

          SHA256

          047995ff43550404e61356ae4595c33e95942b17d7ac262aa3e8275f5c733fd9

          SHA512

          9ff6c10240b515b82b576198e274d1f1ade558c180fbb360da13a227b452f756df46cd5e0312e290fa95751a89dff7b6e3ca9ddd742153aaee1c7428760f3738

        • C:\Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          2.2MB

          MD5

          6a4f0286963b6654a1015a20f9cd194e

          SHA1

          098d0aba2c89da4ebd1a1a81879cb7424216d746

          SHA256

          23082683343623420d29cd13e9e6190f8604a800117b162696899dd4f75291b3

          SHA512

          c5df65ea84af160847772496f142f03f64c453a232b09e4681b34967e2631f39f749cf904b5d3a79c865f15f6a6767db00f1463c45d4ba353370a53bdce9c724

        • \Users\Admin\AppData\Local\Site Free Edition\sitefreeedition.exe

          Filesize

          1.4MB

          MD5

          0ffabd9512c01e11cc83fbe26a448f6c

          SHA1

          4ce99070804e408f79ccdeaf5f9d905cabc0350c

          SHA256

          47789a106dc0b0d3554a02debbe322a634f94cd129a02b14dd031136fba8276d

          SHA512

          9514867ab1c7619160aa65fa4a0911e9ab0cc34c4750124d2a8fedfdddc9c690734b77105fed5fc4b8063f34fe2cba4edde8a3b54fed27d6106e0f53b9f36580

        • \Users\Admin\AppData\Local\Temp\is-MFA6C.tmp\_isetup\_iscrypt.dll

          Filesize

          2KB

          MD5

          a69559718ab506675e907fe49deb71e9

          SHA1

          bc8f404ffdb1960b50c12ff9413c893b56f2e36f

          SHA256

          2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

          SHA512

          e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

        • \Users\Admin\AppData\Local\Temp\is-MFA6C.tmp\_isetup\_shfoldr.dll

          Filesize

          22KB

          MD5

          92dc6ef532fbb4a5c3201469a5b5eb63

          SHA1

          3e89ff837147c16b4e41c30d6c796374e0b8e62c

          SHA256

          9884e9d1b4f8a873ccbd81f8ad0ae257776d2348d027d811a56475e028360d87

          SHA512

          9908e573921d5dbc3454a1c0a6c969ab8a81cc2e8b5385391d46b1a738fb06a76aa3282e0e58d0d2ffa6f27c85668cd5178e1500b8a39b1bbae04366ae6a86d3

        • \Users\Admin\AppData\Local\Temp\is-O9CMP.tmp\70954c38bf2bd7d8b250e99cd4fda9ca229ec45b11536acedbd1de638ae30da7.tmp

          Filesize

          677KB

          MD5

          5a1e3d46cb5a24f8e50b2a59d2ba1cf3

          SHA1

          fe86894c4757c144449bc744649b7fb9e03346f1

          SHA256

          d3a2c2ce7d70b3b9c30faf3f72bf4ebcdea8f331d6b6cac5dae906327997985d

          SHA512

          a27dc5c443abb31826b14e514aa717be5bf0f548b82170f79705f45ca28abaedc485c5b8738044735f61eca9e1f0ca659b519a3947551404085d07202ae709af

        • memory/1116-12-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1116-41-0x00000000032B0000-0x00000000034E3000-memory.dmp

          Filesize

          2.2MB

        • memory/1116-59-0x00000000032B0000-0x00000000034E3000-memory.dmp

          Filesize

          2.2MB

        • memory/1116-58-0x0000000000240000-0x0000000000241000-memory.dmp

          Filesize

          4KB

        • memory/1116-57-0x0000000000400000-0x00000000004B8000-memory.dmp

          Filesize

          736KB

        • memory/2032-54-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2032-0-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2032-2-0x0000000000400000-0x0000000000414000-memory.dmp

          Filesize

          80KB

        • memory/2508-74-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-91-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-107-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-55-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-104-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-100-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-97-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-60-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-63-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-64-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-67-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-68-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-71-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-94-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-77-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-78-0x0000000002670000-0x0000000002712000-memory.dmp

          Filesize

          648KB

        • memory/2508-84-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-87-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2508-90-0x0000000002670000-0x0000000002712000-memory.dmp

          Filesize

          648KB

        • memory/2588-44-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2588-45-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2588-46-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2588-49-0x0000000000400000-0x0000000000633000-memory.dmp

          Filesize

          2.2MB

        • memory/2704-52-0x0000000140000000-0x00000001405E8000-memory.dmp

          Filesize

          5.9MB

        • memory/2704-51-0x0000000140000000-0x00000001405E8000-memory.dmp

          Filesize

          5.9MB