Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09/07/2023, 11:03

General

  • Target

    55cfb8de29960161a96abd8fa.exe

  • Size

    752KB

  • MD5

    a1166c17c91bcb4de729365c3f58f1d5

  • SHA1

    0da62ba24c9a85e5787b28d8f43f817e7d804231

  • SHA256

    55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0

  • SHA512

    f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2

  • SSDEEP

    12288:9Ax6Umh0GT8y9lp9LZuD7Y8JUlmtWI14YexoJkwjrWU6MfCb58hJ+T:7Uw0H0TufY5GWI14YWpwt6MfQYAT

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wazp

  • offline_id

    V5TMuF1BBuDZFeJXDU5xmjrzp6rwS1IuZWNpDCt1

  • 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-6Dm02j1lRa 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: 0738ISdik

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.6

Botnet

dcad9d884915bbb6106f78e5e2ea6168

C2

https://steamcommunity.com/profiles/76561199523054520

https://t.me/game4serv

Attributes
  • profile_id_v2

    dcad9d884915bbb6106f78e5e2ea6168

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:103.0) Gecko/20100101 Firefox/103.0

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
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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
  • 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe
    "C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:216
    • C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe
      "C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4968
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\1b98b119-a03f-4505-9c21-7fd5e42611cb" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3084
      • C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe
        "C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2208
        • C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe
          "C:\Users\Admin\AppData\Local\Temp\55cfb8de29960161a96abd8fa.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3160
          • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe
            "C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2772
            • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe
              "C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3644
          • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build3.exe
            "C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:984
            • 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:2800
  • 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:2348
    • 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:2096

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

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

    Filesize

    2KB

    MD5

    24841482658226cf5631326daa54421c

    SHA1

    3f7c084495be359a47dd42b07c3b16a28c330714

    SHA256

    1beda9a89d19114be6dc72214190ba114f6eb935862fa07b8ced5ad6a78641b2

    SHA512

    551f85388f5152436942b091afc3baf4370b6d9321d916692405f14c654c5cb0a676a3a8fff90e780831838708df8231a9f55e2fff9d2cb084cc0e3cebe212b4

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

    Filesize

    1KB

    MD5

    29ba323a28bc41f59890555f91916c6f

    SHA1

    5ba1f1b1cd8fe3761cf7f6180106051566f8dd86

    SHA256

    7f71f2f6003e29c5327bfc643bf9c9e165d8e617328b127196979648753a6f21

    SHA512

    4cca1e24b503bc198686b1cfdbf0d0d15c64b37cb16fa9d76d2852d2cefb6c25f546cc024ed9be2a5ec6c15318e74a971611555e770c59292fc78ffbbe4bdf34

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

    Filesize

    488B

    MD5

    e086da64015296945d2980e93b0f7541

    SHA1

    18d3139df9b08673d4bedb114551be85bfe632a8

    SHA256

    2b1d545c8ecd3d75bb565b2734675dee067a9494f6489c91301c7dd0b2dba274

    SHA512

    f73c02dd939be3519089bde2a338a1169eeb1ade5a7182dd8a999d09bed44312da026eb265cc74e94b254621753160eef7ac580c745b5f80ee12f9b7e6a4fc1b

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

    Filesize

    482B

    MD5

    1e70e664764610c6f3e940082c55a4ec

    SHA1

    4aac79cad08fa47f9ac9af39dcc6b65c7f9bce4c

    SHA256

    e93c086421ce0f88aaf7c80f8da511c1716e55e972e69cdd0b6a17c2d6ab168c

    SHA512

    a64f264e938bb195080c2cac08a655430921c063183da5cc9c0bde5bc95a826a6e9417819f21c1c499ecd60cdbb9503bb3cb4e1ab91288d083b50151b2419e52

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\102f4f4e-2c76-4c56-99b6-a9830f5bf9cb\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\1b98b119-a03f-4505-9c21-7fd5e42611cb\55cfb8de29960161a96abd8fa.exe

    Filesize

    752KB

    MD5

    a1166c17c91bcb4de729365c3f58f1d5

    SHA1

    0da62ba24c9a85e5787b28d8f43f817e7d804231

    SHA256

    55cfb8de29960161a96abd8fa86ef7353957a3fd220a4cd6f867179192c773b0

    SHA512

    f5f1b3eb9100e7670cec60d0c21ba946342d7dd052c7eea4bf0b45c6fb8d0562a9cb827747fc0b7eefbfa1a27131bd7cd69cc7455ce308ab8cecfbd50b1f37b2

  • 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/216-136-0x0000000002350000-0x000000000246B000-memory.dmp

    Filesize

    1.1MB

  • memory/2772-184-0x0000000000600000-0x000000000068D000-memory.dmp

    Filesize

    564KB

  • memory/3160-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-282-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-194-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3160-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3644-280-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-198-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-208-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3644-277-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-278-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-185-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-183-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/3644-181-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4968-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4968-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4968-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4968-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4968-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB