Analysis

  • max time kernel
    65s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-01-2023 10:51

General

  • Target

    e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe

  • Size

    794KB

  • MD5

    6263cf4ed224f1a7756f3d7c4c83cfda

  • SHA1

    8952d8e4aa5ffd114c09afb07d082e05492b087f

  • SHA256

    e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e

  • SHA512

    beb2485bde7386cc07fbc3bbee7370d832d731b196f3576bf7d5f171e4ebc23f15c49067df02aee078d98c53313b49ab1e2981ef70f5f7d7e8b05048d62dd7cf

  • SSDEEP

    24576:NT1kSDzRtx8Sht/nrxtzGu5nRRE/+BDdzO:NZxzRtOSLxxG8nRRSkDdz

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .erqw

  • offline_id

    xVB7l5LcUtDGyghMgGsTvebrKc0RGgDXlN1BoKt1

  • 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-8pCGyFnOj6 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: 0639JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.3

Botnet

19

C2

https://t.me/mantarlars

https://steamcommunity.com/profiles/76561199474840123

Attributes
  • profile_id

    19

Signatures

  • Detected Djvu ransomware 10 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Vidar

    Vidar is an infostealer based on Arkei stealer.

  • 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\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe
    "C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe
      "C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2612
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\9f8c4303-06ae-4ff5-81ba-36afdd1fa429" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3412
      • C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe
        "C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:320
        • C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe
          "C:\Users\Admin\AppData\Local\Temp\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4012
          • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe
            "C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2172
            • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe
              "C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\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:2040
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1476
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4068
          • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build3.exe
            "C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4808
            • 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:4528
  • 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:3084
    • 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:3844

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

    c2ed2c633828a1bcf603a04772f6bc6f

    SHA1

    a2d3abb39d5551c5b594d30d0dcdd05fa5a50085

    SHA256

    7e8561e47f6e0af457bca0ff0ea2fa11f64942e80e2d20e5a9611a9915049808

    SHA512

    5ab5dc3bfbf196b4eeaa40ee06e94c452f271046c7e0b656cf944ab1cdc109130f40d18388adcc4b5eb15de08f996f8650f136f1fa53e2ae8efe1bb0715ea83a

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

    Filesize

    1KB

    MD5

    9bf10855213d2d2b26123cd2a04220b8

    SHA1

    231d2ed3b9098617f196e89cee3c2a82b38b5d40

    SHA256

    a508e5bc0086119681076c2b05889d6f70047f971342d65792776ab7b53ca1e9

    SHA512

    df78a9f4ed0296f9a16d17672758411306e1b3664e9c6aece1ec738da350e2ee703f5c4f30167c4d5b54de8d154a7a4dc7250420c024e26063c8521a333e3dfd

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

    Filesize

    488B

    MD5

    19bf58e520222153aae1834c2a4281f9

    SHA1

    dad79851c0b225d3cf69cbad18ded7ae4358cdf2

    SHA256

    fa1bbd7e789dc280f21b95f1d723820e0a0ba77853c508fce17eea0a7bb03c42

    SHA512

    f320ed5559bcdb78099b6b5d2d80d33a98b8d08c89fa4826bbacd8c8951e41a33b3eae738743163e45c05c5a80bf06f8d2aa80b9b39244b2e8ad12622ad111e9

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

    Filesize

    482B

    MD5

    1b9a856ca1ec56c0dee06162f352f949

    SHA1

    c5fd23a48406e9fe0d4b5759b09522185b8752d0

    SHA256

    e28357cf025532167ed4982b9a9446a2fa0a4d98e64f812d56fc7156cee7fdd2

    SHA512

    e76005689c7496a58b63a9893d6b5a49e39eea6f3db695ee1de9449cc8396c39dc2e25461ff48cc7284f7a6f045e6c3d390ffd7486721bada7a62d035d045fd8

  • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe

    Filesize

    299KB

    MD5

    cacd37281c5470cfc13e6db90942d371

    SHA1

    af9e1477a51858376bd113f8247b4f6ff1b94445

    SHA256

    fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c

    SHA512

    cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67

  • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe

    Filesize

    299KB

    MD5

    cacd37281c5470cfc13e6db90942d371

    SHA1

    af9e1477a51858376bd113f8247b4f6ff1b94445

    SHA256

    fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c

    SHA512

    cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67

  • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build2.exe

    Filesize

    299KB

    MD5

    cacd37281c5470cfc13e6db90942d371

    SHA1

    af9e1477a51858376bd113f8247b4f6ff1b94445

    SHA256

    fe8dd23da7d898858d6a280cd58d4ca332f958a4f9562bf8f364dc4340f9c34c

    SHA512

    cfe21519f4c55583c3c68592812dbfa1170279de5e20b3da6d49f66957e373288650bd8c1a6afcd6d70255356674579b40c1b75a7c154fcc705cc89056ff8d67

  • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\4374c672-d8d4-470d-b7a3-142ab0b3072e\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\9f8c4303-06ae-4ff5-81ba-36afdd1fa429\e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e.exe

    Filesize

    794KB

    MD5

    6263cf4ed224f1a7756f3d7c4c83cfda

    SHA1

    8952d8e4aa5ffd114c09afb07d082e05492b087f

    SHA256

    e1f24dd093f2877eef0b66e6e242ecc2f42872881e29ae139cba35e9138bbf5e

    SHA512

    beb2485bde7386cc07fbc3bbee7370d832d731b196f3576bf7d5f171e4ebc23f15c49067df02aee078d98c53313b49ab1e2981ef70f5f7d7e8b05048d62dd7cf

  • 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/320-141-0x0000000000000000-mapping.dmp

  • memory/320-146-0x000000000063F000-0x00000000006D1000-memory.dmp

    Filesize

    584KB

  • memory/632-136-0x0000000002340000-0x000000000245B000-memory.dmp

    Filesize

    1.1MB

  • memory/632-135-0x0000000002244000-0x00000000022D6000-memory.dmp

    Filesize

    584KB

  • memory/1476-190-0x0000000000000000-mapping.dmp

  • memory/2040-160-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2040-167-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2040-168-0x0000000050AB0000-0x0000000050B42000-memory.dmp

    Filesize

    584KB

  • memory/2040-191-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2040-156-0x0000000000000000-mapping.dmp

  • memory/2040-157-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2040-159-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/2172-162-0x00000000047E0000-0x000000000483D000-memory.dmp

    Filesize

    372KB

  • memory/2172-161-0x0000000002C1D000-0x0000000002C51000-memory.dmp

    Filesize

    208KB

  • memory/2172-153-0x0000000000000000-mapping.dmp

  • memory/2612-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-132-0x0000000000000000-mapping.dmp

  • memory/2612-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3412-139-0x0000000000000000-mapping.dmp

  • memory/3844-195-0x0000000000000000-mapping.dmp

  • memory/4012-143-0x0000000000000000-mapping.dmp

  • memory/4012-189-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4012-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4012-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4012-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4068-192-0x0000000000000000-mapping.dmp

  • memory/4528-166-0x0000000000000000-mapping.dmp

  • memory/4808-163-0x0000000000000000-mapping.dmp