Analysis

  • max time kernel
    149s
  • max time network
    124s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    11-05-2024 03:05

General

  • Target

    be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe

  • Size

    224KB

  • MD5

    5c7fb0927db37372da25f270708103a2

  • SHA1

    120ed9279d85cbfa56e5b7779ffa7162074f7a29

  • SHA256

    be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844

  • SHA512

    a15f97fad744ccf5f620e5aabb81f48507327b898a9aa4287051464019e0f89224c484e9691812e166471af9beaddcfc3deb2ba878658761f4800663beef7206

  • SSDEEP

    3072:Y059femWRwTs/dbelj0X8/j84pcRXPlU3Upt3or4H84lK8PtpLzLsR/EfcZ:+5RwTs/dSXj84mRXPemxdBlPvLzLeZ

Malware Config

Extracted

Path

C:\Users\Admin\Documents\!Please Read Me!.txt

Family

wannacry

Ransom Note
Q: What's wrong with my files? A: Ooops, your important files are encrypted. It means you will not be able to access them anymore until they are decrypted. If you follow our instructions we guarantee that you can decrypt all your files quickly and safely! Let's start decrypting! Q: What do I do? A: First, you need to pay service fees for the decryption. Please send $300 worth of bitcoin to this bitcoin address: 15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1 Next, please find the decrypt software on your desktop, an executable file named "!WannaDecryptor!.exe". If it does not exsit, download the software from the address below. (You may need to disable your antivirus for a while.) rar password: wcry123 Run and follow the instructions! �
Wallets

15zGqZCTcys6eCjDkE3DypCjXi6QWRV6V1

Signatures

  • Wannacry

    WannaCry is a ransomware cryptoworm.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Drops startup file 1 IoCs
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 9 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • 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.

  • Kills process with taskkill 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 47 IoCs
  • Suspicious use of SetWindowsHookEx 8 IoCs
  • Suspicious use of WriteProcessMemory 56 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\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe
    "C:\Users\Admin\AppData\Local\Temp\be22645c61949ad6a077373a7d6cd85e3fae44315632f161adc4c99d5a8e6844.exe"
    1⤵
    • Drops startup file
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2376
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c 226561715396717.bat
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2716
      • C:\Windows\SysWOW64\cscript.exe
        cscript //nologo c.vbs
        3⤵
        • Loads dropped DLL
        PID:2592
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe f
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2468
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im MSExchange*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2300
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im Microsoft.Exchange.*
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:2280
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlserver.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:820
    • C:\Windows\SysWOW64\taskkill.exe
      taskkill /f /im sqlwriter.exe
      2⤵
      • Kills process with taskkill
      • Suspicious use of AdjustPrivilegeToken
      PID:284
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe c
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2404
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c start /b !WannaDecryptor!.exe v
      2⤵
      • Loads dropped DLL
      • Suspicious use of WriteProcessMemory
      PID:296
      • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
        !WannaDecryptor!.exe v
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2140
        • C:\Windows\SysWOW64\cmd.exe
          cmd.exe /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no & wbadmin delete catalog -quiet
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1508
          • C:\Windows\SysWOW64\vssadmin.exe
            vssadmin delete shadows /all /quiet
            5⤵
            • Interacts with shadow copies
            PID:2624
          • C:\Windows\SysWOW64\Wbem\WMIC.exe
            wmic shadowcopy delete
            5⤵
            • Suspicious use of AdjustPrivilegeToken
            PID:284
    • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
      !WannaDecryptor!.exe
      2⤵
      • Executes dropped EXE
      • Sets desktop wallpaper using registry
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:2248
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2060

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe
    Filesize

    236KB

    MD5

    cf1416074cd7791ab80a18f9e7e219d9

    SHA1

    276d2ec82c518d887a8a3608e51c56fa28716ded

    SHA256

    78e3f87f31688355c0f398317b2d87d803bd87ee3656c5a7c80f0561ec8606df

    SHA512

    0bb0843a90edacaf1407e6a7273a9fbb896701635e4d9467392b7350ad25a1bec0c1ceef36737b4af5e5841936f4891436eded0533aa3d74c9a54efa42f024c5

  • C:\Users\Admin\AppData\Local\Temp\!WannaDecryptor!.exe.lnk
    Filesize

    925B

    MD5

    ee2afdf58569a870f12df411045a0804

    SHA1

    7f9a224021825eaea673a95abfd51fe6aff47ad5

    SHA256

    c3a11fd25d63c2108bc1e9296cf78c64c26830ba1df95bb5b2fd20b7c2d2ebf6

    SHA512

    e0f468007c82378db46ec4add82db20387aed015236143ac63e438b4cbeab32bbf362bec19d524d4ef38cab756a0bf05a5b7810f0a97175c4223244ad796bf3d

  • C:\Users\Admin\AppData\Local\Temp\00000000.res
    Filesize

    136B

    MD5

    dbaddcfef798f2f297a455a9810b5bf1

    SHA1

    8bb81572bf690d0a987c9f6b0536721b6b69a972

    SHA256

    2b541961e08a6d36a1977a3a2ea26e9b488284883401a40ed46861bbe74d9dae

    SHA512

    2d921946054a3b6adcb6b35ce365bdb15514583d9725c1da46bd3e94394bd25184935e24ff6e408777636459bd43e678415418f847cc2d7475016a4d42fa8b8d

  • C:\Users\Admin\AppData\Local\Temp\00000000.res
    Filesize

    136B

    MD5

    d6b2c8cd88baf319867c3333e146cdbb

    SHA1

    c1a11e102fbff7cd240b99a9e9a184f318627f9c

    SHA256

    7f06d948af2fc6fe55c71799260a13733d860955ea742ab5e5dbb4dc1d50f2ba

    SHA512

    7d06906ea4999334ffd7cd5361b2910ad9aa06b2dd6ff79e4b13e80e3ce77bb81eec5356dd1588317ecfebd4b8870cc09a0b8524d2a4c78b9a1bbffe8bcae931

  • C:\Users\Admin\AppData\Local\Temp\00000000.res
    Filesize

    136B

    MD5

    567070529aff5a7ac857535dd3e9ff46

    SHA1

    d750d0542cc7a3e51c187dfe240263cfa35e6dd4

    SHA256

    37837afa0b760c15931771bee1e086ab82938d0148cff96f99a97fb1512ed602

    SHA512

    32af55e3be7afe97adda540717ac491dfa35a8a7e4991091e90c082f95d04cba4e4371e4bbfd48db42e82717a79f9afa2a8f235028c17d8db83d54400e934205

  • C:\Users\Admin\AppData\Local\Temp\226561715396717.bat
    Filesize

    336B

    MD5

    3540e056349c6972905dc9706cd49418

    SHA1

    492c20442d34d45a6d6790c720349b11ec591cde

    SHA256

    73872a89440a2cba9d22bf4961c3d499ea2c72979c30c455f942374292fedadc

    SHA512

    c949d147100aef59e382c03abf7b162ae62a4d43456eebd730fbedcf5f95f5e1a24f6e349690d52d75331878a6ee8f6b88a7162ee9cf2a49e142196b12d0133c

  • C:\Users\Admin\AppData\Local\Temp\c.vbs
    Filesize

    219B

    MD5

    5f6d40ca3c34b470113ed04d06a88ff4

    SHA1

    50629e7211ae43e32060686d6be17ebd492fd7aa

    SHA256

    0fb5039a2fe7e90cdf3f22140d7f2103f94689b15609efe0edcc8430dd772fc1

    SHA512

    4d4aa1abd2c9183202fd3f0a65b37f07ee0166ba6561f094c13c8ea59752c7bdd960e37c49583746d4464bc3b1dc0b63a1fe36a37ce7e5709cd76ed433befe35

  • C:\Users\Admin\AppData\Local\Temp\c.wry
    Filesize

    628B

    MD5

    cf1ace06a6aa786496cde7e23fac03b6

    SHA1

    d40b902728ae40d6109f96187c0ae038a71bbaec

    SHA256

    3312120eec703562902bdc2986b9ce6898c78254875541c1686f0e8d1b534302

    SHA512

    fe9e2bd9a57dc2c760849bffc0199989b1d33cf6cbb4eab3a493e4328bd75ab3e9bc40995fdccf8b97e6ca03bec30f0654c0e4c91612896a1467f8951643a209

  • C:\Users\Admin\AppData\Local\Temp\m.wry
    Filesize

    42KB

    MD5

    980b08bac152aff3f9b0136b616affa5

    SHA1

    2a9c9601ea038f790cc29379c79407356a3d25a3

    SHA256

    402046ada270528c9ac38bbfa0152836fe30fb8e12192354e53b8397421430d9

    SHA512

    100cda1f795781042b012498afd783fd6ff03b0068dbd07b2c2e163cd95e6c6e00755ce16b02b017693c9febc149ed02df9df9b607e2b9cca4b07e5bd420f496

  • C:\Users\Admin\Documents\!Please Read Me!.txt
    Filesize

    797B

    MD5

    afa18cf4aa2660392111763fb93a8c3d

    SHA1

    c219a3654a5f41ce535a09f2a188a464c3f5baf5

    SHA256

    227082c719fd4394c1f2311a0877d8a302c5b092bcc49f853a5cf3d2945f42b0

    SHA512

    4161f250d59b7d4d4a6c4f16639d66d21b2a9606de956d22ec00bedb006643fedbbb8e4cde9f6c0c977285918648314883ca91f3442d1125593bf2605f2d5c6b

  • memory/2376-6-0x0000000010000000-0x0000000010012000-memory.dmp
    Filesize

    72KB