Analysis

  • max time kernel
    63s
  • max time network
    126s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-12-2022 04:02

General

  • Target

    def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe

  • Size

    733KB

  • MD5

    0c246c9724d37db8e1e388eb7b67b4d6

  • SHA1

    53ef66867056199d75cdf1b093e9662b9032aaaf

  • SHA256

    def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23

  • SHA512

    e2e77a0028a05e0c87ecdc1a238f957fd6e38f62e442ef7aaddf00dca570216ae1d0324eb7ba77a4305f7df03a0b1ff284b0afea49d7f2b9a89727a8b88208bc

  • SSDEEP

    12288:TS2dIRAppFYwnq/5Zr80IifjzTfMxLkIn7FwyhnP8ErVNLMaaLMA90oXYbXF:T3A8YeA56QfjzTfMx/n7/hnP8pvZYbXF

Malware Config

Extracted

Family

djvu

C2

http://abibiall.com/test1/get.php

Attributes
  • extension

    .btnw

  • offline_id

    8p2Go5ZmkbFk0DF2oJ6E8vGEogpBqqaGCWjto1t1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://abibiall.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-Q5EougBEbU Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0617JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses 2FA software files, possible credential harvesting 2 TTPs
  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe
    "C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:752
    • C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe
      "C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1176
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\2ad740fa-5a8a-4390-b0a7-8152acbc0451" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4408
      • C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe
        "C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4508
        • C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe
          "C:\Users\Admin\AppData\Local\Temp\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1276
          • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe
            "C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3012
            • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe
              "C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4852
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4100
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:64
          • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build3.exe
            "C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4928
            • C:\Windows\SysWOW64\schtasks.exe
              /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
              6⤵
              • Creates scheduled task(s)
              PID:3840
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of WriteProcessMemory
    PID:2932
    • C:\Windows\SysWOW64\schtasks.exe
      /C /create /F /sc minute /mo 1 /tn "Azure-Update-Task" /tr "C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe"
      2⤵
      • Creates scheduled task(s)
      PID:3196

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll

    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    2KB

    MD5

    0f419c66dbc4946c001394e2910c173d

    SHA1

    e988a2291023e4c29b6442bfdeaacd9a83f0c640

    SHA256

    763aeee4de549d18d1e3a30be29961f5ffe2ce794179d13a06f44dd57a0b6b48

    SHA512

    c9d6c5459b055cecec7d7ed00f7774144b06fb2a4511bfc110a83577ed4517595a325f51e0579238d28550cf76de0a276f9d8bc322898c763b987a649e643918

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    1KB

    MD5

    c6964c598d970f6c97ea4092e97d517d

    SHA1

    690351843ee9c5dae635519f869192bb786207c6

    SHA256

    8901c2d40e486f904090f6ee8e107197cdb876c5bfe5fd7ce2d212e3330eba4a

    SHA512

    7fbaf67a4c6f9603c11ccfb42e65a42841c5f68baaf6817b84e0b48ad036636772adf06bc00b9b31ca33342b4c43854f6e5e750247bc718dd6ad1d5342e38aae

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

    Filesize

    488B

    MD5

    cc1b7c758d4d95a105a5f183135efdef

    SHA1

    9319f597010c46368200109c15946a8bb6c45975

    SHA256

    3ce6ba47f40f861d9ada5bcd4ea3820649e19da5498ab6e0881a4c0d66684c92

    SHA512

    4e7b3ff5305fdca68ddd6c0d6cbf4d4e7f910bcfa56e9db6c0f9bb33e862b3995c35d50aa37df314c29f98bb0932dfd1c4a7989abdfcea9ea0d87ee8c9844041

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

    Filesize

    482B

    MD5

    bb596fb84c61657c5207194d2ad22e7e

    SHA1

    26b06bfaf11830a725a93670185802e185221ef3

    SHA256

    816ca64f76527a9dc9e855389f365e197d997ffd6fc9822fa86e4962fcff7a4a

    SHA512

    a3751726e7b453c8dbd5775199177b34fb879bd91d50dcf298e2eeeb6b3b41cbe8def8e7ebe938739c19f30aa08ecb12d7a724f4df47aebf56b76c5bd3745034

  • C:\Users\Admin\AppData\Local\2ad740fa-5a8a-4390-b0a7-8152acbc0451\def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23.exe

    Filesize

    733KB

    MD5

    0c246c9724d37db8e1e388eb7b67b4d6

    SHA1

    53ef66867056199d75cdf1b093e9662b9032aaaf

    SHA256

    def73ae7916f47723ffbf51ad73ed7072e3c7b60d9c38e99e2ef85c745e62e23

    SHA512

    e2e77a0028a05e0c87ecdc1a238f957fd6e38f62e442ef7aaddf00dca570216ae1d0324eb7ba77a4305f7df03a0b1ff284b0afea49d7f2b9a89727a8b88208bc

  • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\d7056e3f-126f-4818-bb9f-f222b1b95e84\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/64-192-0x0000000000000000-mapping.dmp

  • memory/752-137-0x0000000002320000-0x000000000243B000-memory.dmp

    Filesize

    1.1MB

  • memory/752-135-0x0000000002232000-0x00000000022C4000-memory.dmp

    Filesize

    584KB

  • memory/1176-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1176-132-0x0000000000000000-mapping.dmp

  • memory/1176-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1176-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1176-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1176-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1276-143-0x0000000000000000-mapping.dmp

  • memory/1276-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1276-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1276-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1276-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3012-160-0x0000000000632000-0x0000000000663000-memory.dmp

    Filesize

    196KB

  • memory/3012-161-0x0000000000820000-0x0000000000877000-memory.dmp

    Filesize

    348KB

  • memory/3012-153-0x0000000000000000-mapping.dmp

  • memory/3196-195-0x0000000000000000-mapping.dmp

  • memory/3840-166-0x0000000000000000-mapping.dmp

  • memory/4100-190-0x0000000000000000-mapping.dmp

  • memory/4408-139-0x0000000000000000-mapping.dmp

  • memory/4508-146-0x000000000211F000-0x00000000021B1000-memory.dmp

    Filesize

    584KB

  • memory/4508-141-0x0000000000000000-mapping.dmp

  • memory/4852-162-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/4852-169-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/4852-167-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/4852-191-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/4852-156-0x0000000000000000-mapping.dmp

  • memory/4852-159-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/4852-157-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/4928-163-0x0000000000000000-mapping.dmp