Analysis

  • max time kernel
    300s
  • max time network
    198s
  • platform
    windows7_x64
  • resource
    win7-20230705-en
  • resource tags

    arch:x64arch:x86image:win7-20230705-enlocale:en-usos:windows7-x64system
  • submitted
    08/07/2023, 23:01

General

  • Target

    8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe

  • Size

    741KB

  • MD5

    fe176ea6be4c36da01bbe630602cba14

  • SHA1

    aade60125f010175a48de6f51f97a7f619393734

  • SHA256

    8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3

  • SHA512

    57b0ec850767e75f79bdef5ba6ef5e27583b40af41c9eaf218ad41dfc94000e2a9122a06b9ffba935d9ef3ad0721c787d55fa50b14a6bacc2bef5aea2c2f1bf1

  • SSDEEP

    12288:j1dDGisbM+xGBgpxRbEBEB9E1QmsV3M5LwXbLaUXaHcbsa:jDubp/4BEMQe1wXbOUXMcY

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wayn

  • 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: 0740ISdik

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 14 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 2 IoCs
  • Loads dropped DLL 4 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.

  • Modifies system certificate store 2 TTPs 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe
    "C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2328
    • C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe
      "C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe"
      2⤵
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:516
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d009c7dd-9de1-40ee-b5d6-e9d7233d886f" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2928
      • C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe
        "C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1988
        • C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe
          "C:\Users\Admin\AppData\Local\Temp\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Loads dropped DLL
          • Modifies system certificate store
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2232
          • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe
            "C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2704
            • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe
              "C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Modifies system certificate store
              • Suspicious behavior: EnumeratesProcesses
              PID:2660

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • 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

    beb97f226abd9f1d8d10817f63eff667

    SHA1

    c68a888c26107b9f9ac23432ac27f1b0b5e5cfef

    SHA256

    87d7716cf27943e55a58510e2e4f780bb7a4c4258e7b477f5f0fad2f31833fe7

    SHA512

    f59ffc0fffe1d2721e7100e5201de2c04d0cd458b9bc32494735ce3b0ea1c021309f6adb0102d42218d3191e56b3b631912f08aee5818092b3ed72982d132c88

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    344B

    MD5

    20fcc7393f6f71d1de9dca368c9bd3d8

    SHA1

    e60c130f1a04bbf576fc8ecd328da776cb9e7e97

    SHA256

    6021c99632a112c606b7a3b5b0fbae5dc8988d1912836a24b74e39ea1a1439b5

    SHA512

    aa4a3f2c22be3db44a992db9c3cabc4556b64014dd245e404c7697ec32b978f470ab38fd5125f6b4c6b0179f39b2da02f959576da88a668539d2bc0b3a6f05c9

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

    Filesize

    482B

    MD5

    9a765a434a21a031aa5349f42ed25b77

    SHA1

    137b2484aa7744d2f265c4caec9b9cb218220520

    SHA256

    7117a7d3bfc1b7aaa1e04eae38ce2405ca1b659314683f9d0003c2a66145f3c8

    SHA512

    4755d0b0a973889a678a55f663a3e186faf558507fdfb20a51441de5aeb25127e6996514bf152328420ce47ba27505f8882342b69684d9a74e2ab4078ffe6e5e

  • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • C:\Users\Admin\AppData\Local\Temp\Cab8069.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\Tar8166.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • C:\Users\Admin\AppData\Local\d009c7dd-9de1-40ee-b5d6-e9d7233d886f\8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3.exe

    Filesize

    741KB

    MD5

    fe176ea6be4c36da01bbe630602cba14

    SHA1

    aade60125f010175a48de6f51f97a7f619393734

    SHA256

    8390c70a50931d583e8943d01f5cd9f10861422cbc0565a3778ea38bf019f8e3

    SHA512

    57b0ec850767e75f79bdef5ba6ef5e27583b40af41c9eaf218ad41dfc94000e2a9122a06b9ffba935d9ef3ad0721c787d55fa50b14a6bacc2bef5aea2c2f1bf1

  • \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

  • \Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • \Users\Admin\AppData\Local\1b5d7e3e-8a00-478e-861d-5162d6a613d7\build2.exe

    Filesize

    418KB

    MD5

    3567ceb7b97d51ca25326b7fb5c8ec6f

    SHA1

    8cccc90870e6a00cc8240dfab61dfd46c30cbd65

    SHA256

    4df6328ec1e748df2043ceca410088ca2018b6635d91f29451b53ed4416cdac2

    SHA512

    3ded0d9fa7716e9395b92afd11fdfe503b9c4c9ec7bfaf899a191dad37a230803f3cb1e506ff32d2a280de74e42b032e7e8cb491059b1eb62d5a2b36bda65ed9

  • memory/516-60-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/516-95-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/516-59-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/516-56-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/516-55-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1988-97-0x0000000000270000-0x0000000000301000-memory.dmp

    Filesize

    580KB

  • memory/2232-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-116-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-115-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-101-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-114-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2232-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2328-58-0x00000000033E0000-0x00000000034FB000-memory.dmp

    Filesize

    1.1MB

  • memory/2328-54-0x0000000000230000-0x00000000002C1000-memory.dmp

    Filesize

    580KB

  • memory/2660-142-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-138-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-148-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-202-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2660-137-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2660-251-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-252-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-253-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2660-254-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/2704-141-0x0000000000330000-0x00000000003BD000-memory.dmp

    Filesize

    564KB