Analysis

  • max time kernel
    144s
  • max time network
    125s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    14/03/2023, 08:37

General

  • Target

    d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe

  • Size

    742KB

  • MD5

    9ea74bfdb0acbe3188b9ea3cabd05b86

  • SHA1

    b403cb929f6f1eca97a05df2c2e5692e9343fc47

  • SHA256

    d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295

  • SHA512

    cff14a9bba8b4ab8956fb02252a604d50f8b1d0d609e5fd7fc5cecdeb61e1f219075c2ff7cd9b6c7daf2e2c3bb19786720422e6912dbf302aa12a878ac3dacb5

  • SSDEEP

    12288:h1BlQgCBnztR+MBJz6EVoOyssbVVoHkaxtTFeUfSyovaTMKTzmWCpLG0l:h1Bsxi0Ab1+k0tTFvfPoyMKPXiLG0l

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .qazx

  • 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: 0662Iopd

rsa_pubkey.plain

Extracted

Family

vidar

Version

3

Botnet

d6ef050131e7d5a1d595c51613328971

C2

https://t.me/zaskullz

https://steamcommunity.com/profiles/76561199486572327

http://135.181.87.234:80

Attributes
  • profile_id_v2

    d6ef050131e7d5a1d595c51613328971

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\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe
    "C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe
      "C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d8e711cb-26cd-49b6-b8d9-7d99a3679005" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2132
      • C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe
        "C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2904
        • C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe
          "C:\Users\Admin\AppData\Local\Temp\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2792
          • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe
            "C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3740
            • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe
              "C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3544
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4896
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4968
          • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build3.exe
            "C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4832
            • 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:4684
  • 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:4872
    • 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:660

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

          8874b9c5a3427344e651f88e8fcf278d

          SHA1

          98911f360acafbb76157ea90de46607d6317ccf0

          SHA256

          cfe9aba277438554a6685fa1466398c1d3e4e557ff3da0ce92cbc1a7fceda17a

          SHA512

          265258aeb0c258d8eae66de13cf34eeae9a67c5aa0919d622eb7fa5804e2fc61e031b90ff8df7e12f0d3649d52645e296cf15da8e1f99ec0b7247c2373cd2a85

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

          Filesize

          482B

          MD5

          19d84a217dbf14762af2e89a587a82d5

          SHA1

          e6893a7266b2e3db3c3c959d9bd7ec2a1a2864cd

          SHA256

          36458bd2a7297a8ff599b2cbba16551a0ebd2321b30131b001873bf31a5d61f2

          SHA512

          e323af4445c55d53d77cac81bb11782c5bd0bf33836f90f4b7587d6e437172b752719c6c36de46f92a27cede65ab2a9ea1f1975ea2c249388a9df2adab06703b

        • C:\Users\Admin\AppData\Local\d8e711cb-26cd-49b6-b8d9-7d99a3679005\d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295.exe

          Filesize

          742KB

          MD5

          9ea74bfdb0acbe3188b9ea3cabd05b86

          SHA1

          b403cb929f6f1eca97a05df2c2e5692e9343fc47

          SHA256

          d3c849899b0cd7c83cb818367b71cc534f88e10859d2603d6bb282c72e531295

          SHA512

          cff14a9bba8b4ab8956fb02252a604d50f8b1d0d609e5fd7fc5cecdeb61e1f219075c2ff7cd9b6c7daf2e2c3bb19786720422e6912dbf302aa12a878ac3dacb5

        • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe

          Filesize

          462KB

          MD5

          1ea00519a643ae1ab0f4f9a6ecc81ead

          SHA1

          551c4fd300092a51a7fd3ceee009db249fd2a70f

          SHA256

          04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

          SHA512

          187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

        • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe

          Filesize

          462KB

          MD5

          1ea00519a643ae1ab0f4f9a6ecc81ead

          SHA1

          551c4fd300092a51a7fd3ceee009db249fd2a70f

          SHA256

          04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

          SHA512

          187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

        • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build2.exe

          Filesize

          462KB

          MD5

          1ea00519a643ae1ab0f4f9a6ecc81ead

          SHA1

          551c4fd300092a51a7fd3ceee009db249fd2a70f

          SHA256

          04e8128c405994d18f26b6394b32686c6e07a65b2c90c98f16295a48a16ba683

          SHA512

          187897c856c6b7b45d9f85898103b8560d25c694c150c1c1efd1370be0c4e3ba3799d2f4c3cc5c2618b0a84f80cff19cf9be47d0961df20c47b73783f6d0491d

        • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\dce05677-4692-4ddd-a93f-fab800fceaee\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/1008-121-0x0000000002470000-0x000000000258B000-memory.dmp

          Filesize

          1.1MB

        • memory/2792-176-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-145-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-152-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-139-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-149-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-151-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-171-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2792-144-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3544-163-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-241-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-165-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-175-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-161-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-187-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3544-244-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-243-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3544-229-0x0000000000400000-0x0000000000471000-memory.dmp

          Filesize

          452KB

        • memory/3740-164-0x00000000024E0000-0x000000000253D000-memory.dmp

          Filesize

          372KB

        • memory/4512-120-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4512-133-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4512-122-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4512-118-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4512-119-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB