Analysis

  • max time kernel
    167s
  • max time network
    182s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/10/2022, 20:32

General

  • Target
    file.exe
  • Size 265KB
  • Sample221004-zbad4scfgp
  • SHA256 5838df319bd0e663bb84758a8edf99dd534e3a0010a373d3ff7c3850259e04b8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • djvu

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

Attributes
  • extension

    .adww

  • offline_id

    z8lhl4oForVEc7gy9Ra8rSqjYMl3xiFRuIW4not1

  • payload_url

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

    http://winnlinne.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-g28rVcqA58 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: 0573Jhyjd

rsa_pubkey.plain

Extracted

Family
  • vidar

Version
  • 54.9

Botnet
  • 517

C2
  • https://t.me/larsenup

  • https://ioc.exchange/@zebra54

Attributes
  • profile_id

    517

Signatures

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

    Ransomware which is a variant of the STOP family.

  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • Downloads MZ/PE file
  • Executes dropped EXE 11 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Loads dropped DLL 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 4 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.

  • Program crash 4 IoCs
  • Checks SCSI registry key(s) 3 TTPs 6 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.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 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:2540
  • C:\Users\Admin\AppData\Local\Temp\1894.exe
    C:\Users\Admin\AppData\Local\Temp\1894.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5024
    • C:\Users\Admin\AppData\Local\Temp\1894.exe
      C:\Users\Admin\AppData\Local\Temp\1894.exe
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:3148
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\61809cc8-fae9-4bea-b571-b335d1c40131" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4020
      • C:\Users\Admin\AppData\Local\Temp\1894.exe
        "C:\Users\Admin\AppData\Local\Temp\1894.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4980
        • C:\Users\Admin\AppData\Local\Temp\1894.exe
          "C:\Users\Admin\AppData\Local\Temp\1894.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Executes dropped EXE
          • Checks computer location settings
          • Suspicious use of WriteProcessMemory
          PID:3120
          • C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe
            "C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3528
            • C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe
              "C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe"
              6⤵
              • Executes dropped EXE
              PID:4184
          • C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build3.exe
            "C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build3.exe"
            5⤵
            • Executes dropped EXE
            PID:2668
            • 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:4516
  • C:\Users\Admin\AppData\Local\Temp\3380.exe
    C:\Users\Admin\AppData\Local\Temp\3380.exe
    1⤵
    • Executes dropped EXE
    PID:4464
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 536
      2⤵
      • Program crash
      PID:1808
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 556
      2⤵
      • Program crash
      PID:4356
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 576
      2⤵
      • Program crash
      PID:2660
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 4464 -s 576
      2⤵
      • Program crash
      PID:4616
  • C:\Windows\system32\regsvr32.exe
    regsvr32 /s C:\Users\Admin\AppData\Local\Temp\39DA.dll
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4264
    • C:\Windows\SysWOW64\regsvr32.exe
      /s C:\Users\Admin\AppData\Local\Temp\39DA.dll
      2⤵
      • Loads dropped DLL
      PID:4984
  • C:\Users\Admin\AppData\Local\Temp\3D07.exe
    C:\Users\Admin\AppData\Local\Temp\3D07.exe
    1⤵
    • Executes dropped EXE
    • Checks SCSI registry key(s)
    • Suspicious behavior: MapViewOfSection
    PID:3312
  • C:\Windows\SysWOW64\explorer.exe
    C:\Windows\SysWOW64\explorer.exe
    1⤵
    • Accesses Microsoft Outlook profiles
    • outlook_office_path
    • outlook_win_path
    PID:5108
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4464 -ip 4464
    1⤵
      PID:5088
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 420 -p 4464 -ip 4464
      1⤵
        PID:1112
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 464 -p 4464 -ip 4464
        1⤵
          PID:2320
        • C:\Windows\explorer.exe
          C:\Windows\explorer.exe
          1⤵
            PID:1624
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -pss -s 532 -p 4464 -ip 4464
            1⤵
              PID:4756
            • C:\Users\Admin\AppData\Local\Temp\E742.exe
              C:\Users\Admin\AppData\Local\Temp\E742.exe
              1⤵
              • Executes dropped EXE
              PID:4408
            • C:\Users\Admin\AppData\Local\Temp\F1F2.exe
              C:\Users\Admin\AppData\Local\Temp\F1F2.exe
              1⤵
              • Executes dropped EXE
              PID:2144

            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 0231bc4602667ff24bfa1caab1d56c225a54031c452c9de84b810be18628a3e3
                  • MD5 SHA1 SHA512

                  B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
                  • Size 1KB
                  • SHA256 c8aff1f15506340e6abd76c8a8382e9caeba4fa8e8483254cf7ab9d22c2a57fe
                  • MD5 SHA1 SHA512

                  07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\07CEF2F654E3ED6050FFC9B6EB844250_3431D4C539FB2CFCB781821E9902850D
                  • Size 488B
                  • SHA256 d8acf3a3f833e5fee24a2dbedf59d5d77059ff730b6c35e210d8afca1845e669
                  • MD5 SHA1 SHA512

                  B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E

                  • Path C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B2FAF7692FD9FFBD64EDE317E42334BA_D7393C8F62BDE4D4CB606228BC7A711E
                  • Size 482B
                  • SHA256 f634b666960ba9c1c8ee3a2868d416bfe07c72b28a27f4f923c73e74bffa7bb9
                  • MD5 SHA1 SHA512

                  build2.exe

                  • Path C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe
                  • Size 255KB
                  • SHA256 5ee57d85a41b825060864ae85981253f28148d15586a5f6274d562dfeae93e98
                  • MD5 SHA1 SHA512 SSDEEP

                  build2.exe

                  • Path C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe
                  • Size 255KB
                  • SHA256 5ee57d85a41b825060864ae85981253f28148d15586a5f6274d562dfeae93e98
                  • MD5 SHA1 SHA512 SSDEEP

                  build2.exe

                  • Path C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build2.exe
                  • Size 255KB
                  • SHA256 5ee57d85a41b825060864ae85981253f28148d15586a5f6274d562dfeae93e98
                  • MD5 SHA1 SHA512 SSDEEP

                  build3.exe

                  • Path C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build3.exe
                  • Size 9KB
                  • SHA256 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
                  • MD5 SHA1 SHA512 SSDEEP

                  build3.exe

                  • Path C:\Users\Admin\AppData\Local\2de150e5-f591-4316-8a85-5e7275adfeaa\build3.exe
                  • Size 9KB
                  • SHA256 8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\61809cc8-fae9-4bea-b571-b335d1c40131\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  1894.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\1894.exe
                  • Size 783KB
                  • SHA256 72faac0671b74302f64cd3577e2a2513d04f4b6da8a2782deb279a9024eecc9c
                  • MD5 SHA1 SHA512 SSDEEP

                  3380.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\3380.exe
                  • Size 4.7MB
                  • SHA256 839e99c28e35ad517a31e9d060a9b63b0be6b20d6dcade0277e58bd45ccde605
                  • MD5 SHA1 SHA512 SSDEEP

                  3380.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\3380.exe
                  • Size 4.7MB
                  • SHA256 839e99c28e35ad517a31e9d060a9b63b0be6b20d6dcade0277e58bd45ccde605
                  • MD5 SHA1 SHA512 SSDEEP

                  39DA.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\39DA.dll
                  • Size 1.8MB
                  • SHA256 8f547dfd37abda80952c9e562e4527175e1a250468c2a7520eefd8922ff5fcca
                  • MD5 SHA1 SHA512 SSDEEP

                  39DA.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\39DA.dll
                  • Size 1.8MB
                  • SHA256 8f547dfd37abda80952c9e562e4527175e1a250468c2a7520eefd8922ff5fcca
                  • MD5 SHA1 SHA512 SSDEEP

                  39DA.dll

                  • Path C:\Users\Admin\AppData\Local\Temp\39DA.dll
                  • Size 1.8MB
                  • SHA256 8f547dfd37abda80952c9e562e4527175e1a250468c2a7520eefd8922ff5fcca
                  • MD5 SHA1 SHA512 SSDEEP

                  3D07.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\3D07.exe
                  • Size 265KB
                  • SHA256 fe86dd56f4008cff1bf62b37526d684d69ce4bb504205a1e91f3c7552ae694e3
                  • MD5 SHA1 SHA512 SSDEEP

                  3D07.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\3D07.exe
                  • Size 265KB
                  • SHA256 fe86dd56f4008cff1bf62b37526d684d69ce4bb504205a1e91f3c7552ae694e3
                  • MD5 SHA1 SHA512 SSDEEP

                  E742.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\E742.exe
                  • Size 315KB
                  • SHA256 079822548cccf08b91c02cca5b878bad94b0b484e1df228ee74d3c80151e3c02
                  • MD5 SHA1 SHA512 SSDEEP

                  E742.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\E742.exe
                  • Size 315KB
                  • SHA256 079822548cccf08b91c02cca5b878bad94b0b484e1df228ee74d3c80151e3c02
                  • MD5 SHA1 SHA512 SSDEEP

                  F1F2.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\F1F2.exe
                  • Size 363KB
                  • SHA256 f7c9f67063b498312b693ea4ce222a109c2078887af84573393d180a950b9656
                  • MD5 SHA1 SHA512 SSDEEP

                  F1F2.exe

                  • Path C:\Users\Admin\AppData\Local\Temp\F1F2.exe
                  • Size 363KB
                  • SHA256 f7c9f67063b498312b693ea4ce222a109c2078887af84573393d180a950b9656
                  • MD5 SHA1 SHA512 SSDEEP

                  memory/1624-169-0x0000000000DE0000-0x0000000000DEC000-memory.dmp

                  memory/1624-168-0x0000000000DF0000-0x0000000000DF7000-memory.dmp

                  memory/2540-132-0x00000000006BC000-0x00000000006CC000-memory.dmp

                  memory/2540-136-0x0000000002040000-0x0000000002049000-memory.dmp

                  memory/2540-134-0x0000000000400000-0x0000000000448000-memory.dmp

                  memory/2540-137-0x0000000000400000-0x0000000000448000-memory.dmp

                  memory/2540-135-0x00000000006BC000-0x00000000006CC000-memory.dmp

                  memory/2540-133-0x0000000002040000-0x0000000002049000-memory.dmp

                  memory/3120-186-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3120-187-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3120-239-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3120-196-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3148-142-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3148-180-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3148-148-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3148-147-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3148-144-0x0000000000400000-0x0000000000537000-memory.dmp

                  memory/3312-159-0x0000000000400000-0x0000000000448000-memory.dmp

                  memory/3312-156-0x00000000006AB000-0x00000000006BC000-memory.dmp

                  memory/3312-157-0x0000000000660000-0x0000000000669000-memory.dmp

                  memory/3312-158-0x0000000000400000-0x0000000000448000-memory.dmp

                  memory/3528-208-0x000000000084E000-0x0000000000879000-memory.dmp

                  memory/3528-209-0x00000000020D0000-0x000000000211A000-memory.dmp

                  memory/4184-205-0x0000000000400000-0x000000000045E000-memory.dmp

                  memory/4184-210-0x0000000000400000-0x000000000045E000-memory.dmp

                  memory/4184-220-0x0000000061E00000-0x0000000061EF3000-memory.dmp

                  memory/4184-216-0x0000000000400000-0x000000000045E000-memory.dmp

                  memory/4464-167-0x0000000000400000-0x00000000008BC000-memory.dmp

                  memory/4464-160-0x0000000003080000-0x00000000034C7000-memory.dmp

                  memory/4464-161-0x0000000000400000-0x00000000008BC000-memory.dmp

                  memory/4980-188-0x0000000002108000-0x0000000002199000-memory.dmp

                  memory/4984-176-0x0000000002600000-0x00000000027CA000-memory.dmp

                  memory/4984-217-0x0000000003090000-0x0000000003139000-memory.dmp

                  memory/4984-182-0x0000000002EA0000-0x0000000002FC9000-memory.dmp

                  memory/4984-181-0x0000000002C40000-0x0000000002D6E000-memory.dmp

                  memory/4984-238-0x0000000002EA0000-0x0000000002FC9000-memory.dmp

                  memory/4984-215-0x0000000002FD0000-0x000000000308D000-memory.dmp

                  memory/4984-218-0x0000000003090000-0x0000000003139000-memory.dmp

                  memory/5024-145-0x00000000020C1000-0x0000000002152000-memory.dmp

                  memory/5024-146-0x0000000002200000-0x000000000231B000-memory.dmp

                  memory/5108-170-0x0000000000A00000-0x0000000000A75000-memory.dmp

                  memory/5108-165-0x0000000000790000-0x00000000007FB000-memory.dmp

                  memory/5108-177-0x0000000000790000-0x00000000007FB000-memory.dmp

                  memory/5108-164-0x0000000000A00000-0x0000000000A75000-memory.dmp