Analysis

  • max time kernel
    148s
  • max time network
    150s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07-05-2024 01:33

General

  • Target

    a5d024a0be4a491e5004b9c4c1343fc172e210cc1bf78641d512c6fd9ec41f62.exe

  • Size

    124KB

  • MD5

    21d6b63327f1f57348899d5992d43102

  • SHA1

    c1f72ac6dedd7817c094c41df3d9dd505675d93d

  • SHA256

    a5d024a0be4a491e5004b9c4c1343fc172e210cc1bf78641d512c6fd9ec41f62

  • SHA512

    0af75df0a6dfe44b33b03f4dc716c48db3a479f438fe0a9332b82cc832ffdb2d56254b073bfb67feed8c0f5516ede72a93f1de70e62c8ae9e9e9fd09f600d1cf

  • SSDEEP

    1536:IFaM5mTEVEQnqrZM5V3J6fgNWbMb+KR0Nc8QsJq3:iaMqEVEUWZulJGgNAe0Nc8QsC

Malware Config

Extracted

Family

metasploit

Version

windows/reverse_tcp

C2

86.104.74.31:9981

Extracted

Family

metasploit

Version

windows/reverse_winhttp

C2

https://86.104.74.31:2526/fd3zz0jliLkQrhGvdpeVpgk3G__x63mWh1gI58R0JEHOZwCxT5ADz_cyqt144D8WxjMAXj9F

Signatures

  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • XMRig Miner payload 2 IoCs
  • xmrig

    XMRig is a high performance, open source, cross platform CPU/GPU miner.

  • Downloads MZ/PE file
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 5 IoCs
  • Drops file in System32 directory 11 IoCs
  • Detects Pyinstaller 1 IoCs
  • Modifies data under HKEY_USERS 42 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 44 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 23 IoCs

Processes

  • C:\Windows\system32\services.exe
    C:\Windows\system32\services.exe
    1⤵
    • Loads dropped DLL
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of UnmapMainImage
    • Suspicious use of WriteProcessMemory
    PID:480
    • C:\Windows\system32\cmd.exe
      cmd.exe /c echo fjyqbk > \\.\pipe\fjyqbk
      2⤵
        PID:2704
      • C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe
        "C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe" geKvtKt
        2⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:1728
        • C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe
          C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe
          3⤵
          • Executes dropped EXE
          • Drops file in System32 directory
          • Modifies data under HKEY_USERS
          PID:2768
      • \??\c:\windows\system32\WindowsUpdate.exe
        c:/windows/system32/\WindowsUpdate.exe
        2⤵
        • Executes dropped EXE
        • Drops file in System32 directory
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of FindShellTrayWindow
        PID:2952
      • \??\c:\windows\system32\Python-deamon.exe
        c:/windows/system32/\Python-deamon.exe
        2⤵
        • Executes dropped EXE
        PID:772
    • C:\Users\Admin\AppData\Local\Temp\a5d024a0be4a491e5004b9c4c1343fc172e210cc1bf78641d512c6fd9ec41f62.exe
      "C:\Users\Admin\AppData\Local\Temp\a5d024a0be4a491e5004b9c4c1343fc172e210cc1bf78641d512c6fd9ec41f62.exe"
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:756
      • C:\Windows\SysWOW64\cmd.exe
        cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe" YLsGHv
        2⤵
        • Loads dropped DLL
        • Suspicious use of WriteProcessMemory
        PID:2988
        • C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe
          C:\Users\Admin\AppData\Local\Temp\pvkXkIR.exe YLsGHv
          3⤵
          • Executes dropped EXE
          PID:2252

    Network

    MITRE ATT&CK Matrix

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Windows\SysWOW64\config\systemprofile\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
      Filesize

      68KB

      MD5

      29f65ba8e88c063813cc50a4ea544e93

      SHA1

      05a7040d5c127e68c25d81cc51271ffb8bef3568

      SHA256

      1ed81fa8dfb6999a9fedc6e779138ffd99568992e22d300acd181a6d2c8de184

      SHA512

      e29b2e92c496245bed3372578074407e8ef8882906ce10c35b3c8deebfefe01b5fd7f3030acaa693e175f4b7aca6cd7d8d10ae1c731b09c5fa19035e005de3aa

    • C:\Windows\System32\Python-deamon.exe
      Filesize

      4.9MB

      MD5

      2213c24bf5f894162377e83435bf6394

      SHA1

      34d35d4fefa2464c7a7adcf844a2055161283fcb

      SHA256

      920ddce9db19abbde837de204acf2c28abdc93525d50c74e686f2b64560dc6a2

      SHA512

      4fbccf72968372841668a4860ac5201138458c98eaf6dd034e435ae0741dba143cc5d5241cf19c1aee18ac425eb25ad3f9dd04452bc302b27f825313785fd554

    • C:\Windows\Temp\Tar4E83.tmp
      Filesize

      177KB

      MD5

      435a9ac180383f9fa094131b173a2f7b

      SHA1

      76944ea657a9db94f9a4bef38f88c46ed4166983

      SHA256

      67dc37ed50b8e63272b49a254a6039ee225974f1d767bb83eb1fd80e759a7c34

      SHA512

      1a6b277611959720a9c71114957620517ad94541302f164eb872bd322292a952409bafb8bc2ac793b16ad5f25d83f8594ccff2b7834e3c2b2b941e6fc84c009a

    • \??\c:\windows\system32\config.json
      Filesize

      4KB

      MD5

      ffe25900f192333490e126339df8e160

      SHA1

      5131bd56ba2ce72be36e6af7fda8958756a226ed

      SHA256

      8c8a4dd8bd002bf109efd8580b461d9e6e7f819d87e665c205887e92c2ac3bd5

      SHA512

      37eaa4d95a429cf00718509214df1de5f97f49e98f1c29e1d2fb772f7f153121cf8985ab6c91eb5c04ff7170f1e6ced6dc4d90a3dcc301e8c4f74067b5ca6b31

    • \Users\Admin\AppData\Local\Temp\pvkXkIR.exe
      Filesize

      8KB

      MD5

      4bb03ecd3dba7df3fb2336c85347be06

      SHA1

      704141d55c05ff4f0783625b530eca4c8eddbbc6

      SHA256

      bf71bc6ea25a21b995a12e5278e916bd8e2be8daf1ee127444f182edda2a8df8

      SHA512

      1a06dccbcb4ace65319aeb6a5184a448562ab13519bbc168231a7432db8c1e5944430eba139ff554ad51ff140ae24f9755aaf27da80417c01e689afdc6fb1ff6

    • \Windows\System32\WindowsUpdate.exe
      Filesize

      5.4MB

      MD5

      1ce931c7db9f11fe942e34857e16100e

      SHA1

      18aa4aa3d4f4653ca3c8fb706b004f911a5dd9de

      SHA256

      7fac868eff64e2fae4e1d2cc9ef2d30b6e865e91f48782d5400f7f1376aeb543

      SHA512

      44d99eb110efd3e636a8c74015277f13b24306e41965a67a1b970e7a07cb63343a7e6d1dc48308a6a115330e568ea5c7e50e2ec8897e639de2d322278fa67a9e

    • memory/480-161-0x00000000002B0000-0x00000000002E2000-memory.dmp
      Filesize

      200KB

    • memory/756-41-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-19-0x00000000020E0000-0x00000000021E0000-memory.dmp
      Filesize

      1024KB

    • memory/756-40-0x00000000020E0000-0x00000000021E0000-memory.dmp
      Filesize

      1024KB

    • memory/756-0-0x0000000000020000-0x0000000000021000-memory.dmp
      Filesize

      4KB

    • memory/756-61-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-66-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-20-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-1-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-5-0x0000000000300000-0x000000000032C000-memory.dmp
      Filesize

      176KB

    • memory/756-125-0x0000000000390000-0x0000000000391000-memory.dmp
      Filesize

      4KB

    • memory/756-35-0x0000000002520000-0x0000000002545000-memory.dmp
      Filesize

      148KB

    • memory/756-14-0x0000000000420000-0x0000000000483000-memory.dmp
      Filesize

      396KB

    • memory/756-7-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/756-6-0x0000000000330000-0x0000000000361000-memory.dmp
      Filesize

      196KB

    • memory/2768-96-0x0000000003590000-0x0000000003990000-memory.dmp
      Filesize

      4.0MB

    • memory/2768-76-0x0000000000020000-0x0000000000021000-memory.dmp
      Filesize

      4KB