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Analysis

  • max time kernel
    1629s
  • max time network
    1696s
  • platform
    windows10-1703_x64
  • resource
    win10-20240404-en
  • resource tags

    arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13/06/2024, 09:01

General

  • Target

    Phishing.exe

  • Size

    600KB

  • MD5

    2437e352ff0a8776a4db6a9ad491e3aa

  • SHA1

    a78d5b3bed12f8347870b68017af6143b618fcbe

  • SHA256

    7855ddefcaaa6271873f7c667152310ce54b2a998b086e9d6c00e0baf2c7e74f

  • SHA512

    c3ec585dded4052eb9d10a8d55b05c6f34ba10c384b172bc2b64402726ef1d4d1a22e65f50b25f579eb150a3f24d3e5b35ed74bdd131e4dc3cf084a18c5b0ec8

  • SSDEEP

    6144:wOYGXaPNxdgSdcq2pVZPOJHAbKhKXgTTSjpdqAzn2n3ignO:kGqN/XdctpVtkRLTodqAzs3igO

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Blocklisted process makes network request 8 IoCs
  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell and hide display window.

  • Deletes itself 1 IoCs
  • Loads dropped DLL 1 IoCs
  • Registers COM server for autorun 1 TTPs 2 IoCs
  • Command and Scripting Interpreter: JavaScript 1 TTPs
  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 12 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Phishing.exe
    "C:\Users\Admin\AppData\Local\Temp\Phishing.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2656
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c (start /MIN powershell.exe -NonI -W Hidden -Exec Bypass Add-MpPreference -ExclusionPath "C:") & (start /MIN wscript.exe /E:jscript 7020189421 246 "C:\Users\Admin\AppData\Local\Temp\Phishing.exe")
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:652
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        powershell.exe -NonI -W Hidden -Exec Bypass Add-MpPreference -ExclusionPath "C:"
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:3176
      • C:\Windows\SysWOW64\wscript.exe
        wscript.exe /E:jscript 7020189421 246 "C:\Users\Admin\AppData\Local\Temp\Phishing.exe"
        3⤵
        • Deletes itself
        • Modifies registry class
        • Suspicious behavior: RenamesItself
        • Suspicious use of WriteProcessMemory
        PID:5052
        • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
          "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -NonI -W Hidden -Exec Bypass Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local"
          4⤵
          • Command and Scripting Interpreter: PowerShell
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:4840
        • C:\Windows\SysWOW64\regsvr32.exe
          "C:\Windows\System32\regsvr32.exe" /i /s "C:\Users\Admin\AppData\Local\dynwrapx.dll"
          4⤵
          • Loads dropped DLL
          • Registers COM server for autorun
          • Modifies registry class
          PID:4560
        • C:\Windows\SysWOW64\vssadmin.exe
          "C:\Windows\System32\vssadmin.exe" Delete Shadows /All /Quiet
          4⤵
          • Interacts with shadow copies
          PID:4108
  • C:\Windows\SysWOW64\wscript.exe
    C:\Windows\SysWOW64\wscript.exe "C:\Users\Admin\AppData\Local\f9d1bf680.js" 246
    1⤵
    • Process spawned unexpected child process
    • Blocklisted process makes network request
    • Modifies registry class
    • Modifies system certificate store
    PID:4460
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    4159a1e4cdb933bb4113c92bb68a1b73

    SHA1

    38b5868314a63083eb27f41d69780eafe1006d2b

    SHA256

    715d86b01287c88ec10be605030c674fad9236d46dda91cdb16664bfb8728864

    SHA512

    78b5e59c5e316bfc1844c5b3ed9238857dc59ea1686d6af3f586e7207b0c429cad005eb9fd82f7567639645b5f95f5fef1aba0aa06db80eed35bd7dde071ad80

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    17KB

    MD5

    77bacd14a8e926262cdd80e94483ce2e

    SHA1

    d6f5d791253e2197a0003f3823bdfc640de7ccbf

    SHA256

    0ffc7f53c382e363a5130ceee9b7e6ad0e98f0146cf3e257b6f0adbb49df73b6

    SHA512

    0bfde0ea5b628580cc337eba40242e79862ed046046fd148d7d3b33195589ee9d771fb69050fed2cfc67ab8e403f08e202599eddf8aefec288c052dc623cfcf4

  • C:\Users\Admin\AppData\Local\Temp\7020189421

    Filesize

    57KB

    MD5

    be003dd8d5d2f98619cb1b71cb183b66

    SHA1

    17bdd34900ca4fa1e51043480d0f09ebfcf33675

    SHA256

    694f6b1eca8889f565f705a2724c147212816a2401a0819f497255bce4db24c5

    SHA512

    9c52de6426d0270e7eb6a494c77d50f6e49463f3b68e05fd691d1ca240bbdfcda253dfb4e67004c9fd7df0a2f668daabfe8904dba6fcfa09e4c2ae63efaee346

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_4zwhedna.upm.ps1

    Filesize

    1B

    MD5

    c4ca4238a0b923820dcc509a6f75849b

    SHA1

    356a192b7913b04c54574d18c28d46e6395428ab

    SHA256

    6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

    SHA512

    4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

  • C:\Users\Admin\AppData\Local\Temp\dynwrapx.dll

    Filesize

    13KB

    MD5

    0a235e8362613509efd31bfdbb22f978

    SHA1

    8bcb0297001dfd4963e8d17270ad0d2024a96912

    SHA256

    175c6cc0a98c16f18e333b5622415d3d962a5d1c05044d34823c8541d6abfcd5

    SHA512

    bb2cf2457ba063c971c9944f9a6fda4a89eab80265e270f6371a826bdfc753a62828c83f984897127f213837adb8f90956263dd51823e270c5081fafea630db4

  • \Users\Admin\AppData\Local\dynwrapx.dll

    Filesize

    13KB

    MD5

    ca820517f8fd74d21944d846df6b7c20

    SHA1

    1f87eeb37156d64de97d042b9bcfbaf185f8737d

    SHA256

    1b5eb6d4680f7d4da7e2a1a1060b9f13565e082346e375a92244bb55672d49d7

    SHA512

    27e83483f9dd50b2f897b5b93171b17c0e78719b6f05070c7ef4d69fb80f31cb1342b50685e43a7401fc13e56c83d5a52ed7ccfb69ac5bd3c33461fa10f3985a

  • memory/3176-47-0x0000000007080000-0x00000000070A2000-memory.dmp

    Filesize

    136KB

  • memory/3176-94-0x000000006F9F0000-0x000000006FA3B000-memory.dmp

    Filesize

    300KB

  • memory/3176-50-0x00000000079F0000-0x0000000007D40000-memory.dmp

    Filesize

    3.3MB

  • memory/3176-493-0x0000000009480000-0x0000000009488000-memory.dmp

    Filesize

    32KB

  • memory/3176-34-0x0000000007200000-0x0000000007828000-memory.dmp

    Filesize

    6.2MB

  • memory/3176-484-0x0000000009490000-0x00000000094AA000-memory.dmp

    Filesize

    104KB

  • memory/3176-31-0x0000000004AD0000-0x0000000004B06000-memory.dmp

    Filesize

    216KB

  • memory/4840-52-0x0000000008510000-0x000000000855B000-memory.dmp

    Filesize

    300KB

  • memory/4840-87-0x000000006F9F0000-0x000000006FA3B000-memory.dmp

    Filesize

    300KB

  • memory/4840-86-0x0000000009870000-0x00000000098A3000-memory.dmp

    Filesize

    204KB

  • memory/4840-93-0x00000000099B0000-0x0000000009A55000-memory.dmp

    Filesize

    660KB

  • memory/4840-88-0x0000000009850000-0x000000000986E000-memory.dmp

    Filesize

    120KB

  • memory/4840-99-0x0000000009B70000-0x0000000009C04000-memory.dmp

    Filesize

    592KB

  • memory/4840-53-0x0000000008810000-0x0000000008886000-memory.dmp

    Filesize

    472KB

  • memory/4840-51-0x0000000008370000-0x000000000838C000-memory.dmp

    Filesize

    112KB

  • memory/4840-48-0x0000000007EC0000-0x0000000007F26000-memory.dmp

    Filesize

    408KB

  • memory/4840-49-0x0000000007F30000-0x0000000007F96000-memory.dmp

    Filesize

    408KB