Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    13-03-2023 10:44

General

  • Target

    289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe

  • Size

    841KB

  • MD5

    c6cd667d13846d0fb443c136e5e3f1a6

  • SHA1

    8b3d3ce0928da0914930779e2ef225d2caa148f7

  • SHA256

    289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974

  • SHA512

    d8dbe3c132859f1fe62130ef23bd11e81fdb194dcf08dea97d3435d235e3c712ca714dbc7491d62ca05c3723e3a31d0e8e0d8e74402f39dcbcb1af4ad97776fd

  • SSDEEP

    12288:JkqK2siRycIT8jVaPhed/TzpH9OxdP4g/irZBNbrIrcbU7dxDTMhl8gQ:45iRzIgUeLzF45/eluS+Dql8gQ

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qapo

  • offline_id

    VrBq0iLIRHjQLgVRLsN1WK8yFkTCRDCCvPkwnHt1

  • 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-zUVSNg4KRZ 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: 0663Iopd

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.9

Botnet

694f12963bedb0c6040fb3c74aac71e5

C2

https://t.me/nemesisgrow

https://steamcommunity.com/profiles/76561199471222742

http://65.109.12.165:80

Attributes
  • profile_id_v2

    694f12963bedb0c6040fb3c74aac71e5

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
  • 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\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe
    "C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe
      "C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1716
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\257a376a-783b-4aa6-9ef2-0c344085504d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4836
      • C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe
        "C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4940
        • C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe
          "C:\Users\Admin\AppData\Local\Temp\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2236
          • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe
            "C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4576
            • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe
              "C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4460
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:528
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:64
          • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build3.exe
            "C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4720
            • 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:4792
  • 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:3220
    • 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:2696

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

    cdb784e3dca082bb6f4b1660d9d9cd2e

    SHA1

    98ef5daefd5b108b1e09e55a116df1101812a01d

    SHA256

    73b1c84fb8239c93de2b976f62381d5ee9007439fda135a9c1c22e7bbdf5c349

    SHA512

    4b1523db65f2d23e984cc27778fb1ec79bb764a050607def3acae7928917ae2c18fd0d6efec2791e1acb3c12929454e3b6afd5e88e0982a975e78805000b4495

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

    Filesize

    1KB

    MD5

    6afb8cc2273e0d3d3a36ead9920703db

    SHA1

    f6e5c1e128d4364ce183f0e90412b42dc9681376

    SHA256

    5bd07b5c45bd3b9a35e56c98ffcc979abe595c3dcbbb8fce89400401c5e1c5e6

    SHA512

    e4fcf1e47a30a732ae564e63b83354f4cc5d053a52ae27c03e8033a787217dfe74a39017fe2cec2a8102a91623495aba4ff2a20b57dfc57bd8afcdcdb4ae86a7

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

    Filesize

    488B

    MD5

    0447b0dd5719d895ac22a96d68a3f9c4

    SHA1

    5ba8092984023650eb34bcc3a4934a44c9165375

    SHA256

    9e852b5b9ae53a867415c7cbff5fb72aac839c7b94b5fefdd6006dea25a15721

    SHA512

    5bc7ef1a260471045e87f475c0596646866614254b5306639d3bb304086f2c4d265511d4c7f98996279e1fad01ea3e9dd596ff5e284b5a9ed2201d55bb47ccd0

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

    Filesize

    482B

    MD5

    1b6a18d346496338e45f610b267b0f36

    SHA1

    41ce1c1725aae1062f9f67846d2eea1b5b9a778f

    SHA256

    50dbf551f799f833f4fb2d54888ff6841c87132baf4c092429942459f0c066b1

    SHA512

    5ca1afdd564f660f10ed93ead6777bef672dcf26fa028705568585fff9955743bae3fd3119eed456a87f79a92c358ad190a0826f808fc5591cccd8194100dbd5

  • C:\Users\Admin\AppData\Local\257a376a-783b-4aa6-9ef2-0c344085504d\289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974.exe

    Filesize

    841KB

    MD5

    c6cd667d13846d0fb443c136e5e3f1a6

    SHA1

    8b3d3ce0928da0914930779e2ef225d2caa148f7

    SHA256

    289d2bf19b39115e3be3b4c3ac85a11305222530eddd590ec910b15f69852974

    SHA512

    d8dbe3c132859f1fe62130ef23bd11e81fdb194dcf08dea97d3435d235e3c712ca714dbc7491d62ca05c3723e3a31d0e8e0d8e74402f39dcbcb1af4ad97776fd

  • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe

    Filesize

    382KB

    MD5

    c56b758f00562948de9cac375422074c

    SHA1

    9f98c4c403b98aea3624d905b2e1ccbe5939c908

    SHA256

    3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

    SHA512

    a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

  • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe

    Filesize

    382KB

    MD5

    c56b758f00562948de9cac375422074c

    SHA1

    9f98c4c403b98aea3624d905b2e1ccbe5939c908

    SHA256

    3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

    SHA512

    a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

  • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build2.exe

    Filesize

    382KB

    MD5

    c56b758f00562948de9cac375422074c

    SHA1

    9f98c4c403b98aea3624d905b2e1ccbe5939c908

    SHA256

    3df572ecd8ad88b1b744adc3323998b64d8303ef1a19eba3d7fd6e76aeb67532

    SHA512

    a77a22431ccfd7e565639d90b205ff7132ddfc39a1d46c8ff5de8f71265c56706230b569fb22a72dbc6bbc7c92688ebb024b167971d3b7859c8b6b01ad9084fa

  • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a22d3703-e44a-4c5a-9597-15dca86160d5\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/1716-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1716-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1716-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1716-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1716-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-186-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-140-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-161-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-189-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2236-141-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4460-166-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-251-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-190-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4460-169-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-168-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-232-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-248-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-249-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-250-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4460-164-0x0000000000400000-0x0000000000471000-memory.dmp

    Filesize

    452KB

  • memory/4576-167-0x0000000000770000-0x00000000007CD000-memory.dmp

    Filesize

    372KB

  • memory/5044-123-0x0000000002810000-0x000000000292B000-memory.dmp

    Filesize

    1.1MB