Analysis

  • max time kernel
    295s
  • max time network
    181s
  • platform
    windows10-1703_x64
  • resource
    win10-20230621-en
  • resource tags

    arch:x64arch:x86image:win10-20230621-enlocale:en-usos:windows10-1703-x64system
  • submitted
    30/06/2023, 05:04

General

  • Target

    fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe

  • Size

    783KB

  • MD5

    2b1d02748bbf2a293604986d1e694a44

  • SHA1

    be2d8db989a9c0797991e27ef80044ba36b50f1d

  • SHA256

    fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8

  • SHA512

    e61bd9a6de336c5d3bd47aa9efba7dcafa55e827bb3627f2ca5e7714bb8458560f01b0806fc8450bab1a9ecafd253156c395bd3680ed924469d78a35961c4257

  • SSDEEP

    12288:AnedjM5K9AlaDf00EdmwoTaDTHsTlVn1U0PU1oRCRK5SmGXPU3WCRCt:AnofDzEYwo+DTWnW0cyIkVkPKy

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .aghz

  • offline_id

    IGjpno8dwAKJpBjbvlsxfyQXyNoBoo3dXUtMk6t1

  • 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-3OsGArf4HD 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: 0735JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.5

Botnet

75b38583a079a9212c1fa894fd1b945f

C2

https://steamcommunity.com/profiles/76561199520592470

https://t.me/motafan

Attributes
  • profile_id_v2

    75b38583a079a9212c1fa894fd1b945f

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/111.0

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 2 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.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe
    "C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2260
    • C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe
      "C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3288
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6bc12163-2e9c-4253-86f6-76a32896dc13" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4148
      • C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe
        "C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe
          "C:\Users\Admin\AppData\Local\Temp\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1952
          • C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe
            "C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3820
            • C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe
              "C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4708

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    12cf3f7c5b0a343d46a960e36374432e

    SHA1

    c4385cb8e91123bbcee01892433bc8b0c3377167

    SHA256

    6dc7d2f12c7ed75825418011d67ecc0abb35ac3a65dc4582b9ecf8ee061bf901

    SHA512

    7c783a5771b810ff5925d4de6dbec8fd89ff8622cc13da40afc7df9f3f369f9e835b9b0ee84b7dcec0c8253e6c16371a36405e50ec214291944d2ddb36a036c2

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

    Filesize

    1KB

    MD5

    1f741b0c2176fb8677c5ed12d315afde

    SHA1

    fc09a6bbb2e86a5f5751c026fc400391b977232e

    SHA256

    6cf6b1b5c22df0dfa38b04c358821cacc893c22e18e1781d1c85e70933a7e370

    SHA512

    7c76250ce7215ac900532ff6d7140251af587724c161d8163bfe8a32ecd21d93c8c6401560ce49c9b91f8fb40619b842a0f574599ef50422c57de52c0ae0e285

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

    Filesize

    488B

    MD5

    d5196021c40f06751ccf4d9769816237

    SHA1

    3acb4a2c1418871fe4a9e4f0e42cd4c558eaa757

    SHA256

    73151ce4870b524a33ad29a85281418ea9205f64cd2f13310bbe4c4303e92755

    SHA512

    83ba53a64b6f0ccb3d3a792dacbc17395f35df3a83f225f4fb39a0bfd835e0e0c0c0c5e90c280cb2d740d08e8d975632ad737edc41fcfecaf0da8e3dbaced670

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

    Filesize

    482B

    MD5

    30cd01d226486dd4b4407f2a81a77428

    SHA1

    654ae213ec2277e6fcee0456ad0b6934e9b1ea21

    SHA256

    129300ebbf6c72754665ff978cecb93f32b303fb5b3a446bc591faab6603670d

    SHA512

    b635b9b17a2173905d3fe7e701dc07ee4c383726318bc692686f5e38462561fa3a1aa3d8310bafc71c18ee5560121ec120ac968a6f31c54c921a5e444b0a2c73

  • C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\028be42b-aa3e-48b4-9270-736d81f1a3e6\build2.exe

    Filesize

    330KB

    MD5

    f11de7628c58b4cd0bc3647984edc296

    SHA1

    5aa2db4791acb3f007ebadf6cad9ff9c9ed23ec7

    SHA256

    e356f807c297edf59ba7b0e1e0eb2a2186cc02246ad4bbe8d6fa42c7383b46c7

    SHA512

    cc9dcbd92ca83840b33dd2cceffa446bc5b2052ba14246750233cf10ae0b21b7ae3e30192fe5a3ce186d786c8ecbe2d59a80739adae843644f1b56ac16d03d59

  • C:\Users\Admin\AppData\Local\6bc12163-2e9c-4253-86f6-76a32896dc13\fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8.exe

    Filesize

    783KB

    MD5

    2b1d02748bbf2a293604986d1e694a44

    SHA1

    be2d8db989a9c0797991e27ef80044ba36b50f1d

    SHA256

    fa7a4cefc74b946755bc35120386e77b14c2d26563421704e07dc009f80e12f8

    SHA512

    e61bd9a6de336c5d3bd47aa9efba7dcafa55e827bb3627f2ca5e7714bb8458560f01b0806fc8450bab1a9ecafd253156c395bd3680ed924469d78a35961c4257

  • \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/1952-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1952-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2260-120-0x0000000002310000-0x000000000242B000-memory.dmp

    Filesize

    1.1MB

  • memory/3288-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3288-118-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3288-127-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3288-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3288-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3820-165-0x0000000002140000-0x00000000021A2000-memory.dmp

    Filesize

    392KB

  • memory/4708-166-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-167-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-164-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-179-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4708-162-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-226-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-227-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB

  • memory/4708-228-0x0000000000400000-0x0000000000476000-memory.dmp

    Filesize

    472KB