Analysis

  • max time kernel
    113s
  • max time network
    78s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    15/12/2022, 05:19

General

  • Target

    ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe

  • Size

    749KB

  • MD5

    a45ffa4541676303cabc41bb6a1b9cd4

  • SHA1

    955427c88ab6ad3c635ad3817d51d4573216d48c

  • SHA256

    ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a

  • SHA512

    04e478505c5aa8b9febc3fb2304acff300c6ec98155650c8d112a438cc007bfb7b72f35ac2a13a0eb2605f404d65c4c088f6cd242ccf5c3989079e59b901e0f8

  • SSDEEP

    12288:hz2W8slkvcUGM6QXIGuxFqI3DF5whSc/ENkEJUQMvlvb7DWv8naF7tkhBNGcdtx:z7UGaXIGiFqIh5whSGMk1/vpb7DMn2GP

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 9 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Downloads MZ/PE file
  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 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.

  • Creates scheduled task(s) 1 TTPs 2 IoCs

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

  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe
    "C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1948
    • C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe
      "C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bc1d0067-0c3d-4005-8591-ba57852df7e7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:540
      • C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe
        "C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1656
        • C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe
          "C:\Users\Admin\AppData\Local\Temp\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:976
          • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe
            "C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1512
            • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe
              "C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:1044
          • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build3.exe
            "C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1092
            • 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:1992
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {49E589DB-E997-4547-9C73-987928C26B1C} S-1-5-21-3845472200-3839195424-595303356-1000:ZERMMMDR\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1944
    • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:1964
      • 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"
        3⤵
        • Creates scheduled task(s)
        PID:1184

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\bc1d0067-0c3d-4005-8591-ba57852df7e7\ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a.exe

    Filesize

    749KB

    MD5

    a45ffa4541676303cabc41bb6a1b9cd4

    SHA1

    955427c88ab6ad3c635ad3817d51d4573216d48c

    SHA256

    ce0d8cbee780e57c0e871f1f10d95a35dcf6bdb0d07bd0306a83f8b43df8080a

    SHA512

    04e478505c5aa8b9febc3fb2304acff300c6ec98155650c8d112a438cc007bfb7b72f35ac2a13a0eb2605f404d65c4c088f6cd242ccf5c3989079e59b901e0f8

  • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\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

  • \Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • \Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build2.exe

    Filesize

    370KB

    MD5

    6a7892ece7e8bf85628e0e769560b7cb

    SHA1

    e13140e719218b14dd168467a63d481c7259df8c

    SHA256

    363dd986f98ab17b465354c93bd6f2b391b81593887dc88a0818d3d07264f844

    SHA512

    0091f76a7acf12ce121cc89702bbc7116cd91c4d69be1aaded7deabff92f7a913572d50b37b4ea0ac5cec28ceb4d2a505ed5dd7e98fa13ded39d1114a0ca7e7f

  • \Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \Users\Admin\AppData\Local\be5f26eb-19f5-4c94-ba63-ba5a57ea2b28\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • memory/976-73-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/976-74-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1044-81-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1044-88-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1044-86-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/1512-85-0x0000000000268000-0x000000000029A000-memory.dmp

    Filesize

    200KB

  • memory/1512-79-0x0000000000268000-0x000000000029A000-memory.dmp

    Filesize

    200KB

  • memory/1512-87-0x0000000001C00000-0x0000000001C57000-memory.dmp

    Filesize

    348KB

  • memory/1656-67-0x0000000000550000-0x00000000005E2000-memory.dmp

    Filesize

    584KB

  • memory/1656-71-0x0000000000550000-0x00000000005E2000-memory.dmp

    Filesize

    584KB

  • memory/1948-57-0x0000000000280000-0x0000000000312000-memory.dmp

    Filesize

    584KB

  • memory/1948-60-0x00000000004E0000-0x00000000005FB000-memory.dmp

    Filesize

    1.1MB

  • memory/1948-54-0x0000000000280000-0x0000000000312000-memory.dmp

    Filesize

    584KB

  • memory/2032-59-0x0000000076031000-0x0000000076033000-memory.dmp

    Filesize

    8KB

  • memory/2032-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2032-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2032-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2032-62-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB