Analysis

  • max time kernel
    160s
  • max time network
    163s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/01/2023, 03:14

General

  • Target
    file.exe
  • Size 168KB
  • Sample230131-drbffsed93
  • SHA256 bc5787aa7fb2fdab0f1e0f100a548d116805dafd60ed94244312425da5bdcb70
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • djvu

C2
  • http://drampik.com/lancer/get.php

Attributes
  • extension

    .mzop

  • offline_id

    ex4uvTKsM2vEkIcr3MjXi2C6v27h1mS682iUXGt1

  • payload_url

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

    http://drampik.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-uZxWxoKbU5 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: 0637JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Detects Smokeloader packer 3 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Process spawned unexpected child process 1 IoCs

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

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Downloads MZ/PE file
  • Executes dropped EXE 14 IoCs
  • VMProtect packed file 6 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Checks computer location settings 2 TTPs 5 IoCs

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

  • Loads dropped DLL 1 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 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 3 IoCs
  • Checks SCSI registry key(s) 3 TTPs 9 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Script User-Agent 1 IoCs

    Uses user-agent string associated with script host/environment.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 32 IoCs
  • Suspicious use of WriteProcessMemory 60 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\file.exe
    "C:\Users\Admin\AppData\Local\Temp\file.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:516
  • C:\Users\Admin\AppData\Local\Temp\F189.exe
    C:\Users\Admin\AppData\Local\Temp\F189.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3276
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /tn "svcupdater" /tr "C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe" /st 00:00 /du 9999:59 /sc once /ri 1 /f
      2⤵
      • Creates scheduled task(s)
      PID:4820
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 3276 -s 1028
      2⤵
      • Program crash
      PID:4216
  • C:\Users\Admin\AppData\Local\Temp\F2D2.exe
    C:\Users\Admin\AppData\Local\Temp\F2D2.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2672
    • C:\Users\Admin\AppData\Local\Temp\F2D2.exe
      C:\Users\Admin\AppData\Local\Temp\F2D2.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3168
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bb148d02-3b4c-4b05-8959-dc5bbba88af5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1592
      • C:\Users\Admin\AppData\Local\Temp\F2D2.exe
        "C:\Users\Admin\AppData\Local\Temp\F2D2.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4976
        • C:\Users\Admin\AppData\Local\Temp\F2D2.exe
          "C:\Users\Admin\AppData\Local\Temp\F2D2.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Executes dropped EXE
          PID:2580
  • C:\Users\Admin\AppData\Local\Temp\F61F.exe
    C:\Users\Admin\AppData\Local\Temp\F61F.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:384
  • C:\Users\Admin\AppData\Local\Temp\FBAD.exe
    C:\Users\Admin\AppData\Local\Temp\FBAD.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:3448
    • C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
      "C:\Users\Admin\AppData\Local\Temp\llpb1133.exe"
      2⤵
      • Executes dropped EXE
      PID:1184
    • C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe
      "C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe"
      2⤵
      • Executes dropped EXE
      • Checks SCSI registry key(s)
      • Suspicious behavior: MapViewOfSection
      PID:1476
    • C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe
      "C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of WriteProcessMemory
      PID:1356
      • C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe
        "C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe" -h
        3⤵
        • Executes dropped EXE
        PID:4644
  • C:\Users\Admin\AppData\Local\Temp\311.exe
    C:\Users\Admin\AppData\Local\Temp\311.exe
    1⤵
    • Executes dropped EXE
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4968
    • C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
      "C:\Users\Admin\AppData\Local\Temp\llpb1133.exe"
      2⤵
      • Executes dropped EXE
      PID:4132
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4968 -s 1512
      2⤵
      • Program crash
      PID:1264
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 4968 -ip 4968
    1⤵
      PID:1108
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3276 -ip 3276
      1⤵
        PID:1052
      • C:\Windows\system32\rundll32.exe
        rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
        1⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2564
        • C:\Windows\SysWOW64\rundll32.exe
          rundll32.exe "C:\Users\Admin\AppData\Local\Temp\db.dll",open
          2⤵
          • Loads dropped DLL
          PID:5044
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 5044 -s 600
            3⤵
            • Program crash
            PID:4372
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 492 -p 5044 -ip 5044
        1⤵
          PID:4056
        • C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
          C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
          1⤵
          • Executes dropped EXE
          PID:4744

        Network

              MITRE ATT&CK Enterprise v6

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
              • Size 2KB
              • SHA256 7e8561e47f6e0af457bca0ff0ea2fa11f64942e80e2d20e5a9611a9915049808
              • MD5 SHA1 SHA512

              B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
              • Size 1KB
              • SHA256 a508e5bc0086119681076c2b05889d6f70047f971342d65792776ab7b53ca1e9
              • MD5 SHA1 SHA512

              07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
              • Size 488B
              • SHA256 82e4147c443efd6abdd05481bd6d2401ded3b9e4d2a2792fdc38da65a2d11d1e
              • MD5 SHA1 SHA512

              B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

              • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
              • Size 482B
              • SHA256 2e5ca970b9c821ae29bcebe45aa81bed3830e8183bdde3e63d9651198384692f
              • MD5 SHA1 SHA512

              311.exe

              • Path C:\Users\Admin\AppData\Local\Temp\311.exe
              • Size 3.9MB
              • SHA256 e3821fb308eecf48c36679380663aa25afc7dd368f37de6304da43a599aed828
              • MD5 SHA1 SHA512 SSDEEP

              311.exe

              • Path C:\Users\Admin\AppData\Local\Temp\311.exe
              • Size 3.9MB
              • SHA256 e3821fb308eecf48c36679380663aa25afc7dd368f37de6304da43a599aed828
              • MD5 SHA1 SHA512 SSDEEP

              ChromeSetup.exe

              • Path C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe
              • Size 298KB
              • SHA256 6164128b4834ad44cc9f6cd3f5f50c38a97e07d43fc07c260f733d85abac233b
              • MD5 SHA1 SHA512 SSDEEP

              ChromeSetup.exe

              • Path C:\Users\Admin\AppData\Local\Temp\ChromeSetup.exe
              • Size 298KB
              • SHA256 6164128b4834ad44cc9f6cd3f5f50c38a97e07d43fc07c260f733d85abac233b
              • MD5 SHA1 SHA512 SSDEEP

              F189.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F189.exe
              • Size 378KB
              • SHA256 fd999e4a07d8b3d95f9d9231fd496b0125b56094f1b03ddca7a7b074c1d8c03e
              • MD5 SHA1 SHA512 SSDEEP

              F189.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F189.exe
              • Size 378KB
              • SHA256 fd999e4a07d8b3d95f9d9231fd496b0125b56094f1b03ddca7a7b074c1d8c03e
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              F61F.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F61F.exe
              • Size 186KB
              • SHA256 60513db3d8b78e05b1effcab2282173c648c49717b464f426c2cb6fa95987ed6
              • MD5 SHA1 SHA512 SSDEEP

              F61F.exe

              • Path C:\Users\Admin\AppData\Local\Temp\F61F.exe
              • Size 186KB
              • SHA256 60513db3d8b78e05b1effcab2282173c648c49717b464f426c2cb6fa95987ed6
              • MD5 SHA1 SHA512 SSDEEP

              FBAD.exe

              • Path C:\Users\Admin\AppData\Local\Temp\FBAD.exe
              • Size 3.9MB
              • SHA256 e3821fb308eecf48c36679380663aa25afc7dd368f37de6304da43a599aed828
              • MD5 SHA1 SHA512 SSDEEP

              FBAD.exe

              • Path C:\Users\Admin\AppData\Local\Temp\FBAD.exe
              • Size 3.9MB
              • SHA256 e3821fb308eecf48c36679380663aa25afc7dd368f37de6304da43a599aed828
              • MD5 SHA1 SHA512 SSDEEP

              db.dat

              • Path C:\Users\Admin\AppData\Local\Temp\db.dat
              • Size 557KB
              • SHA256 b7cb464cd0c61026ec38d89c0a041393bc9369e217303677551eec65a09d2628
              • MD5 SHA1 SHA512 SSDEEP

              db.dll

              • Path C:\Users\Admin\AppData\Local\Temp\db.dll
              • Size 52KB
              • SHA256 ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6
              • MD5 SHA1 SHA512 SSDEEP

              db.dll

              • Path C:\Users\Admin\AppData\Local\Temp\db.dll
              • Size 52KB
              • SHA256 ec01d244074f45d4f698f5713147e99d76053824a648b306e1debf69f3ba9ce6
              • MD5 SHA1 SHA512 SSDEEP

              liuyuzhen.exe

              • Path C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe
              • Size 160KB
              • SHA256 01138f2318e59e1fe59f1eb7de3859af815ebf9a59aae1084c1a97a99319ee35
              • MD5 SHA1 SHA512 SSDEEP

              liuyuzhen.exe

              • Path C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe
              • Size 160KB
              • SHA256 01138f2318e59e1fe59f1eb7de3859af815ebf9a59aae1084c1a97a99319ee35
              • MD5 SHA1 SHA512 SSDEEP

              liuyuzhen.exe

              • Path C:\Users\Admin\AppData\Local\Temp\liuyuzhen.exe
              • Size 160KB
              • SHA256 01138f2318e59e1fe59f1eb7de3859af815ebf9a59aae1084c1a97a99319ee35
              • MD5 SHA1 SHA512 SSDEEP

              llpb1133.exe

              • Path C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
              • Size 3.5MB
              • SHA256 2ff76bc4da9995c9d30edd3b54e838fa5f3c55f5a12a8509d82b2e4837b55510
              • MD5 SHA1 SHA512 SSDEEP

              llpb1133.exe

              • Path C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
              • Size 3.5MB
              • SHA256 2ff76bc4da9995c9d30edd3b54e838fa5f3c55f5a12a8509d82b2e4837b55510
              • MD5 SHA1 SHA512 SSDEEP

              llpb1133.exe

              • Path C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
              • Size 3.5MB
              • SHA256 2ff76bc4da9995c9d30edd3b54e838fa5f3c55f5a12a8509d82b2e4837b55510
              • MD5 SHA1 SHA512 SSDEEP

              llpb1133.exe

              • Path C:\Users\Admin\AppData\Local\Temp\llpb1133.exe
              • Size 3.5MB
              • SHA256 2ff76bc4da9995c9d30edd3b54e838fa5f3c55f5a12a8509d82b2e4837b55510
              • MD5 SHA1 SHA512 SSDEEP

              F2D2.exe

              • Path C:\Users\Admin\AppData\Local\bb148d02-3b4c-4b05-8959-dc5bbba88af5\F2D2.exe
              • Size 706KB
              • SHA256 bf0751f80191b3912661d9518dbc7e5c60f542c5f25afcb4ad2bc486c61eb326
              • MD5 SHA1 SHA512 SSDEEP

              svcupdater.exe

              • Path C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
              • Size 768.4MB
              • SHA256 47871a213303f434865cac65725eeaa2f0f69abd4d5dbd7692881ca1ab33cff1
              • MD5 SHA1 SHA512 SSDEEP

              svcupdater.exe

              • Path C:\Users\Admin\AppData\Roaming\Win32Sync\svcupdater.exe
              • Size 768.4MB
              • SHA256 47871a213303f434865cac65725eeaa2f0f69abd4d5dbd7692881ca1ab33cff1
              • MD5 SHA1 SHA512 SSDEEP

              memory/384-195-0x0000000000400000-0x0000000002B98000-memory.dmp

              memory/384-189-0x0000000002E4D000-0x0000000002E5F000-memory.dmp

              memory/384-187-0x0000000000400000-0x0000000002B98000-memory.dmp

              memory/384-184-0x0000000002C10000-0x0000000002C19000-memory.dmp

              memory/516-136-0x0000000000400000-0x0000000002B93000-memory.dmp

              memory/516-135-0x0000000000400000-0x0000000002B93000-memory.dmp

              memory/516-134-0x00000000048D0000-0x00000000048D9000-memory.dmp

              memory/516-133-0x0000000002BA0000-0x0000000002CA0000-memory.dmp

              memory/1184-171-0x0000000140000000-0x0000000140619000-memory.dmp

              memory/1476-201-0x0000000000400000-0x0000000000466000-memory.dmp

              memory/1476-209-0x0000000000400000-0x0000000000466000-memory.dmp

              memory/1476-199-0x0000000000578000-0x000000000058E000-memory.dmp

              memory/1476-200-0x00000000004E0000-0x00000000004E9000-memory.dmp

              memory/2580-217-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/2580-215-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/2580-222-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/2672-158-0x00000000047DB000-0x000000000486D000-memory.dmp

              memory/2672-160-0x0000000004990000-0x0000000004AAB000-memory.dmp

              memory/3168-157-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3168-155-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3168-161-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3168-162-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3168-204-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3168-202-0x0000000000400000-0x0000000000537000-memory.dmp

              memory/3276-182-0x00000000005C0000-0x0000000000607000-memory.dmp

              memory/3276-197-0x0000000000400000-0x000000000047A000-memory.dmp

              memory/3276-181-0x0000000000729000-0x0000000000753000-memory.dmp

              memory/3276-198-0x0000000000729000-0x0000000000753000-memory.dmp

              memory/3276-183-0x0000000000400000-0x000000000047A000-memory.dmp

              memory/3448-149-0x0000000000C70000-0x0000000001066000-memory.dmp

              memory/4132-173-0x0000000140000000-0x0000000140619000-memory.dmp

              memory/4744-211-0x0000000000677000-0x00000000006A1000-memory.dmp

              memory/4744-210-0x0000000000400000-0x000000000047A000-memory.dmp

              memory/4744-208-0x0000000000677000-0x00000000006A1000-memory.dmp

              memory/4976-216-0x000000000488C000-0x000000000491E000-memory.dmp