Analysis

  • max time kernel
    146s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-04-2023 01:13

General

  • Target

    setup.exe

  • Size

    695KB

  • MD5

    9d7c5d1c30ecf2738239c1e07624f664

  • SHA1

    c0467ef5a1c5b060ddbd524a848b310c5ed620a8

  • SHA256

    ecc0792820c2e5a58f4deaea9c93016636baf9a3dd910e82ce03929c6a052427

  • SHA512

    7249a53a533200539d1cdde48ebb8282b1313a33b96ef9e328aac8813501933942a75212cb176e1b49d4c5e5b2d1bbf6825f0d6f2b021d3f1931c63487338652

  • SSDEEP

    12288:FCS6Tu9+oZTWsSvlpmeXq1Eu93fcYmkqETdn+4ffiSCHvD3NIx0:FClC9+oCdvl8GGEQfzNfrmIx

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test2/get.php

Attributes
  • extension

    .nifr

  • offline_id

    FCP2fiITr4rryFhFBnA59GMgwES5CunmcbPc76t1

  • payload_url

    http://uaery.top/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-v8HcfXTy5x 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: 0679SUjhw

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    5df88deb5dde677ba658b77ad5f60248

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

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 3 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). 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\setup.exe
    "C:\Users\Admin\AppData\Local\Temp\setup.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5092
    • C:\Users\Admin\AppData\Local\Temp\setup.exe
      "C:\Users\Admin\AppData\Local\Temp\setup.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4632
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\a3fe9fc6-3fe2-4328-9904-5f4dd84455a8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1972
      • C:\Users\Admin\AppData\Local\Temp\setup.exe
        "C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3840
        • C:\Users\Admin\AppData\Local\Temp\setup.exe
          "C:\Users\Admin\AppData\Local\Temp\setup.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:820
          • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe
            "C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2564
            • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe
              "C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4972
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2620
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1412
          • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build3.exe
            "C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4476
            • 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:3724
  • 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:1660
    • 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:3640

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

    b636591fc66c9d2a1a425dd29939147f

    SHA1

    0d48b7a8df06ce304c8a8b1c1dae5912c6b666f4

    SHA256

    95c629cd39afdd4a9e98a94b6ea6a85c3e692c27c77d963899177b55948b72d1

    SHA512

    e6be6c7ec5a010a3a3509a567891a0f338bf19e84649f5240e7e500cfc87c752cb28ca6a54aa93d896f4cdf2eac46775bf1165b0085eab23176b237d1bd9ad31

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

    Filesize

    1KB

    MD5

    a8c5ec082ddbfa706307d295f25ae6fa

    SHA1

    9d59be752069e201236a1edec3c3b374afc1b382

    SHA256

    c6e194e6a673e59490dfe69c0ea81bff16de4cb1b9b82408dc2738ec7efe488c

    SHA512

    80441dd81f5edc564f50c550a2b93db1bcf7d809811f8df43896d4d3d85c4bda95e735e67f82edf951f2601c84119f8a0769df3643ec777172f1134132ec6dd8

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

    Filesize

    488B

    MD5

    98ab2e74e70e3ac7b2f15aa32a41b9f1

    SHA1

    8fb0f6add6867d34c1f5021c63f307714423bfb2

    SHA256

    6174aeff35e0a97776760b16b790be97cceefe0322114cb0a5b0e3e2c403ab66

    SHA512

    81c798f9c923bb9bd33b880989c1a85b0a51a62bb64bee0eb174ead31891f5b357c9a62f8424c94e7d5c62d7ff8e5bf5be961233c0523a67c847b8e64018950d

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

    Filesize

    482B

    MD5

    f60d3a7e99747a54c4c5e78bc078821f

    SHA1

    3b4b6739e12a8351fa947598776df82328ae0962

    SHA256

    bc340ccbb1e0d9ff48d50ffe36cad3dcbba537faec67402334e1572d87be807f

    SHA512

    eaea4486b3ed1f8d87e940ac17c9d72711c4db13da32e49a308737d309a2c79b3fbe4d2005c0788b4eafd98c75249c669192897fa203bbe2886959dae89668ad

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe

    Filesize

    416KB

    MD5

    aa18968e6cfbdc382ada6a3ed2852085

    SHA1

    4a41fa1a182916d5790aa2071106b3441d64468d

    SHA256

    c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

    SHA512

    8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe

    Filesize

    416KB

    MD5

    aa18968e6cfbdc382ada6a3ed2852085

    SHA1

    4a41fa1a182916d5790aa2071106b3441d64468d

    SHA256

    c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

    SHA512

    8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe

    Filesize

    416KB

    MD5

    aa18968e6cfbdc382ada6a3ed2852085

    SHA1

    4a41fa1a182916d5790aa2071106b3441d64468d

    SHA256

    c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

    SHA512

    8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build2.exe

    Filesize

    416KB

    MD5

    aa18968e6cfbdc382ada6a3ed2852085

    SHA1

    4a41fa1a182916d5790aa2071106b3441d64468d

    SHA256

    c165c8db38ef8dd8c33d103b5ee78e9ddafd8081ff0c7c035fa5251f970e6cfb

    SHA512

    8ffdacca2b003438fd4874e7c88beedb6ad8cf9cd5b36fda5907751e06a85a829e7d9ce7335fb59590462f78054722bccba511b21db838368c661d993000a845

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\5dde1528-b704-4652-ba0e-3fc3b6b2818d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a3fe9fc6-3fe2-4328-9904-5f4dd84455a8\setup.exe

    Filesize

    695KB

    MD5

    9d7c5d1c30ecf2738239c1e07624f664

    SHA1

    c0467ef5a1c5b060ddbd524a848b310c5ed620a8

    SHA256

    ecc0792820c2e5a58f4deaea9c93016636baf9a3dd910e82ce03929c6a052427

    SHA512

    7249a53a533200539d1cdde48ebb8282b1313a33b96ef9e328aac8813501933942a75212cb176e1b49d4c5e5b2d1bbf6825f0d6f2b021d3f1931c63487338652

  • 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/820-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-275-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-193-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/820-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2564-181-0x0000000002D00000-0x0000000002D57000-memory.dmp

    Filesize

    348KB

  • memory/4632-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4632-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4632-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4632-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4632-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4972-276-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-182-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-274-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-206-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4972-183-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-277-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-278-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-178-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4972-180-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/5092-134-0x0000000002040000-0x000000000215B000-memory.dmp

    Filesize

    1.1MB