Analysis

  • max time kernel
    297s
  • max time network
    305s
  • platform
    windows10-1703_x64
  • resource
    win10-20230831-en
  • resource tags

    arch:x64arch:x86image:win10-20230831-enlocale:en-usos:windows10-1703-x64system
  • submitted
    04/10/2023, 03:40

General

  • Target

    1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe

  • Size

    803KB

  • MD5

    57d66bc14d0dc3903ede210e01d6baac

  • SHA1

    46f64ca57ab62628ee054e6a9b7e5c8d986b94ab

  • SHA256

    1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0

  • SHA512

    42028b9e1e467df7b193c37015b481c7132c1320c18b488e9f5df3129163b1bab8c65e20de9ab6bde5332a14b17197b991c4e21762666483e72c1801059ed6fc

  • SSDEEP

    24576:8V8FKLg82QUu2D/kaOji7mINOkHKO/be:8eFSIx7dKO/be

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/lancer/get.php

Attributes
  • extension

    .ttap

  • offline_id

    9qw1wmu1ty4GEiHZdxilHPjCyX6ENKTotjt6MIt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-4vhLUot4Kz 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: 0800JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.9

Botnet

b4fc4cd2d76417bf461814b9d989fcdb

C2

https://steamcommunity.com/profiles/76561199557479327

https://t.me/grizmons

Attributes
  • profile_id_v2

    b4fc4cd2d76417bf461814b9d989fcdb

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36 OPR/104.0.0.0

Signatures

  • Detected Djvu ransomware 16 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
  • 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
  • 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).

  • 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\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe
    "C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:368
    • C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe
      "C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:204
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\7ff26af0-9781-4aca-a79a-b3fbedad2b8f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2276
      • C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe
        "C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3856
        • C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe
          "C:\Users\Admin\AppData\Local\Temp\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2016
          • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe
            "C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2256
            • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe
              "C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3920
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4132
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2120
          • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build3.exe
            "C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4468
            • 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:2352
  • 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:516
    • 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:1856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    47971d246e035ee38bfd1d9854fc1129

    SHA1

    22998ff479318065fd6e121ec181592d9f0c824e

    SHA256

    e926bac76af599422c9f0c9e0a82af8d4a79bcef45effdbef73e5811f64007f8

    SHA512

    7215ee471c23777b34270ef6a08639e331e1e7efd5ebebe3b76e0eb5e37401cdf1befbcf47349f2b2a966b731cea973a87c7ac16692907f71a8330501da8f81c

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

    Filesize

    1KB

    MD5

    91a2dd953cb6f8edfa3c5a3b7c680f68

    SHA1

    45fabdf01269f6ff34cee0a3304d97e8dbb74486

    SHA256

    9806b25d68e91516099c89be4870be1aadc6be2de5611dc24e426026ebf5ffbd

    SHA512

    f1555dc73fe7e5a137385fbb158c587651345f2cb8c28ff11590fe65accdb8cf753b775e804f3f33d30e4c3cd94331356715f63b7856ad567ac98bec639f0bda

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

    Filesize

    488B

    MD5

    a76b890f965d1220aebab62f7c523e17

    SHA1

    e5d2d5d15a7d0cfd5e24ef7e6e842ce821c37546

    SHA256

    cacd04519e6945e4bf40ea56da28c8dc7d2fcd37e70e056ed6ebe8731a08b469

    SHA512

    63dfdb387cdabcbad86e31b30a26ded5dbbbdbdfcb863370b42c809041e11ac45117525ede7676803891bd8372f35501812bb5ddd55bfc157517185962fdb6ff

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

    Filesize

    482B

    MD5

    9e74f8b52ab3c72ea78992215114cc12

    SHA1

    6d0bfca9d42845ea14dca0237c7f5cb679a1c0b0

    SHA256

    3a33836f9c5a7cc2fdafd69203332da3eb006dc2dce71637f7e649339950593b

    SHA512

    cab2cd436f04fa0664d1275dd4a1b1750c6b41b118e85b05f0acdcf0b17f45820578f67f7b50f64e07e37c7b30a57dac3ab7ce513ce684edfc11fc269b1642f6

  • C:\Users\Admin\AppData\Local\7ff26af0-9781-4aca-a79a-b3fbedad2b8f\1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0.exe

    Filesize

    803KB

    MD5

    57d66bc14d0dc3903ede210e01d6baac

    SHA1

    46f64ca57ab62628ee054e6a9b7e5c8d986b94ab

    SHA256

    1d7afdd7f0376b99dd5034c795292de369d900bb5820a73b7cb95fe8d1a3aad0

    SHA512

    42028b9e1e467df7b193c37015b481c7132c1320c18b488e9f5df3129163b1bab8c65e20de9ab6bde5332a14b17197b991c4e21762666483e72c1801059ed6fc

  • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\877758ba-2487-4a08-8c2f-4517b6367f2e\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

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/204-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/204-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/204-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/204-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/204-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/368-1-0x0000000003F50000-0x0000000003FE7000-memory.dmp

    Filesize

    604KB

  • memory/368-2-0x00000000040E0000-0x00000000041FB000-memory.dmp

    Filesize

    1.1MB

  • memory/2016-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-52-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2016-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2256-57-0x0000000002650000-0x0000000002750000-memory.dmp

    Filesize

    1024KB

  • memory/2256-60-0x00000000025C0000-0x0000000002611000-memory.dmp

    Filesize

    324KB

  • memory/3856-20-0x0000000003F90000-0x000000000402C000-memory.dmp

    Filesize

    624KB

  • memory/3920-61-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-73-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3920-62-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-111-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-112-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-113-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-59-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3920-56-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB