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Analysis

  • max time kernel
    74s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17/12/2022, 19:35

General

  • Target

    515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe

  • Size

    733KB

  • MD5

    7a3e65df807ce79ab0e4f5ad5b47475c

  • SHA1

    bbbc7824fd3f9e93027d6f90d54593fd58df9ede

  • SHA256

    515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367

  • SHA512

    6e91ec2b53d7dda3e9a12ef40a410524b28a66f5aa73baee2f3423180d62b877eca1b73104bd7aa74e5466065f51fae8df3a8085bb211943e80035305cf7ccf8

  • SSDEEP

    12288:ZVXKrTe7ZodqsGQTQKjiC351wDVXp1zOmL0kATBSMJmZJMSeO:Sel6qhQT4Cp1wDVXp8SaEEiJb

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\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe
    "C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4948
    • C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe
      "C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3864
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\47ff2c92-036b-4312-b812-bcef99267390" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:5048
      • C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe
        "C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2884
        • C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe
          "C:\Users\Admin\AppData\Local\Temp\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4776
          • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe
            "C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3912
            • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe
              "C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\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:2800
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4724
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2908
          • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build3.exe
            "C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4860
            • 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:516
  • 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:4992
    • 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:680

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    602cebd424613d514b439fe78f14a48d

    SHA1

    d5d7580e513e9b4af91e1a8bcdd5401ab98636f6

    SHA256

    29fabef3eb6d67f8ff9b015375b8fa6b6bced5e8c1651f2199fcb183f33578aa

    SHA512

    fb2cda553e81eee089a166a0da126f9b4cff2ce5dba999ea87a4bfd1d396198f93e17391f408b2b5fa76e5a021717c4c349dede102e3e7eb1f51b44d407cb8b2

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

    Filesize

    1KB

    MD5

    13ed5d9cdfe44b69986cdcda2709fae4

    SHA1

    6f1ac25238f31888d91eda34e7b2dd92a4f379db

    SHA256

    c19bb0d55abcc511665e003cb64e5900a9a93dea9e6a8261356ea9f7f02d8126

    SHA512

    8b34e9dea82332ad2098fe1fdc24f9be1c2722b07d6c8427c4b8348b5dd014780933b369bdf97408e473d84259925c4427a005e86df3a83bd9cae3a93d5f3982

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

    Filesize

    488B

    MD5

    7ceacef7b64624678c88e282dfdd946b

    SHA1

    e5241d8344a3d2867fb1aa43d90568b96e4bbc5e

    SHA256

    af9b77e4b61242173a61ec88d415c901e294349e35ac900dddaf7074617178ee

    SHA512

    e7b246e50fc38fdf4939051b4246aa53138af90202d31e4057e37b9b7293484fabfd48166253a880e6ab8e0c928162a771404f5fc33f8621cd26c2896ef0604a

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

    Filesize

    482B

    MD5

    f1f5bb32afae70dc381855069644a1e6

    SHA1

    503939400f36ae898867b7b4699f42d929ee0e74

    SHA256

    11afc5738b63c58032370829c14c68b07bb7ffbf86cfdcfaf286c52f5df06b4e

    SHA512

    6e876ad795dd6808d8d662a0b73e158753091cfc4cfee929595b7deea566efa7b3a8f0e610dc1ee3a1c56de3b42955ae896a53926db83783c32ecd3d7608e5de

  • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\46aa65d5-5522-4922-84e9-4925d3d72189\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\47ff2c92-036b-4312-b812-bcef99267390\515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367.exe

    Filesize

    733KB

    MD5

    7a3e65df807ce79ab0e4f5ad5b47475c

    SHA1

    bbbc7824fd3f9e93027d6f90d54593fd58df9ede

    SHA256

    515616d7ba59323f90090e32967f814c4a9627cf25634aa5977ef23029f0f367

    SHA512

    6e91ec2b53d7dda3e9a12ef40a410524b28a66f5aa73baee2f3423180d62b877eca1b73104bd7aa74e5466065f51fae8df3a8085bb211943e80035305cf7ccf8

  • 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/2800-190-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2800-169-0x0000000060900000-0x0000000060992000-memory.dmp

    Filesize

    584KB

  • memory/2800-165-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2800-163-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2800-161-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2800-167-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2800-192-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/2884-146-0x00000000004FC000-0x000000000058E000-memory.dmp

    Filesize

    584KB

  • memory/3864-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3864-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3864-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3864-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3864-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3912-164-0x0000000000682000-0x00000000006B3000-memory.dmp

    Filesize

    196KB

  • memory/3912-166-0x00000000005E0000-0x0000000000637000-memory.dmp

    Filesize

    348KB

  • memory/4776-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4948-132-0x00000000004FE000-0x0000000000590000-memory.dmp

    Filesize

    584KB

  • memory/4948-134-0x0000000002240000-0x000000000235B000-memory.dmp

    Filesize

    1.1MB