Analysis

  • max time kernel
    145s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21/07/2023, 13:39

General

  • Target

    abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe

  • Size

    816KB

  • MD5

    536ada25292eb99dd65bbab772afe146

  • SHA1

    51ef6d14501f98bb2b6e5fbed5fad1e996623f96

  • SHA256

    abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4

  • SHA512

    306f833f99e379d1333c2c030760acebe4891c4c3abc251e967ab7c1269cd17924559fe27ca42100a7c42b7a9cabaffd82a8c066bb2d78e3cfeda995da615a12

  • SSDEEP

    12288:Jol0qJ3B4f6DRcnK3TcA822UOGE8z7bnuAwOaWnn4X0uOa6UClSZBUeIqwlaST:J7q1B4URgKjcA8221GhviOaKbVaKnM

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .kizu

  • offline_id

    NGHsYuVPwlgoEkG3ENtueNmXtFHSWod7fYayU9t1

  • 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-lOjoPPuBzw 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: 0747JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.8

Botnet

https://t.me/sundayevent

C2

https://t.me/sundayevent

https://steamcommunity.com/profiles/76561198982268531

Attributes
  • profile_id_v2

    https://t.me/sundayevent

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

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 2 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).

  • 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.

  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe
    "C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2736
    • C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe
      "C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4932
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\761b0d2b-46c1-458a-8738-97d383f7261d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3168
      • C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe
        "C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:780
        • C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe
          "C:\Users\Admin\AppData\Local\Temp\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2292
          • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe
            "C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4740
            • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe
              "C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3772
          • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build3.exe
            "C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3252
            • 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:3400
  • 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:1472
    • 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:724

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        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

          1ebe29638ced3f7ce8f725b6b7ff46f8

          SHA1

          b4ebbbabed6499321a14b3c4a4a74adcce55135f

          SHA256

          d032207b8a1c95e10ebcab100057c875d1f389bdafe042b7a250eb1c5cfdfef1

          SHA512

          58362c445b1344418b72ed764a6cb5838acbc1a3fe44fa6d458741daa6ba0303f280ccda11fba9c2dba10f9013d939aedbab8ec6123e97ce22a243e1dc1f985e

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

          Filesize

          1KB

          MD5

          c01fcb0db5aded4a825c1d7f97a35e1a

          SHA1

          5a75b3fbfd39566b06363f68a98ea146941f262d

          SHA256

          ada788b4cbd81874fb4feaac47fb8d0a31871fde641e9dcd45ee615204f21b46

          SHA512

          88e01d9238db41d9d6bdebe56f43a3c7167c3765e3d00945660ab9b3cb0277337271117ece43d491dfc86dc99afcb0caae80148d9143c95b55483b27c86a67f9

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

          Filesize

          488B

          MD5

          2637f943560724238afccb4a61699c3b

          SHA1

          591deb950e1aeac77e103486083c06858c144513

          SHA256

          002b0a24d8b26910cd51fc8dc9e60acabfde1185e8d1ed11d4aea75972b96cee

          SHA512

          b0d021dd04aaf44476167566d4e0fdb7652840f607474a991986244a5ea9f35261eb8c13f7c658ada5d04f8174bd869fba14f293aef916fb736908e02356780c

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

          Filesize

          482B

          MD5

          561dc271ea63fe29c7eecd225f761bc5

          SHA1

          17e2fcb2037f2ea8ab2fc51d9354f84ba5a77c8e

          SHA256

          884bff8252424ed987e56279c730a494dd735edc05712e8f99ef5ac4be366df0

          SHA512

          78654077fed43c347217119d591b31724889a0bbbe552fdea85ca55e54b29d9de6d42331007d142885069ffca05631a8e7023d97413fdc367e8d34e790b4107b

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe

          Filesize

          524KB

          MD5

          5c08a40f82908735b187705b49de1fc3

          SHA1

          6e108f3f6611f46941869d7fcbe02c47219c0523

          SHA256

          7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

          SHA512

          76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe

          Filesize

          524KB

          MD5

          5c08a40f82908735b187705b49de1fc3

          SHA1

          6e108f3f6611f46941869d7fcbe02c47219c0523

          SHA256

          7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

          SHA512

          76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe

          Filesize

          524KB

          MD5

          5c08a40f82908735b187705b49de1fc3

          SHA1

          6e108f3f6611f46941869d7fcbe02c47219c0523

          SHA256

          7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

          SHA512

          76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build2.exe

          Filesize

          524KB

          MD5

          5c08a40f82908735b187705b49de1fc3

          SHA1

          6e108f3f6611f46941869d7fcbe02c47219c0523

          SHA256

          7539d1cff13c822fbffc73cb9416dd8ae40d79f59b03b1e77b0909e182b6bd2b

          SHA512

          76d06c1686e1ec9bec07188769e3a851b98f042e962eee74bd195e156d15fd9ebc4997b10af092561178ef3918e86dd620d7070934db7b1f5a5449c19cfbe1fd

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\6b3d02e2-241a-4268-afad-ff02fa8c32e4\build3.exe

          Filesize

          9KB

          MD5

          9ead10c08e72ae41921191f8db39bc16

          SHA1

          abe3bce01cd34afc88e2c838173f8c2bd0090ae1

          SHA256

          8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

          SHA512

          aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

        • C:\Users\Admin\AppData\Local\761b0d2b-46c1-458a-8738-97d383f7261d\abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4.exe

          Filesize

          816KB

          MD5

          536ada25292eb99dd65bbab772afe146

          SHA1

          51ef6d14501f98bb2b6e5fbed5fad1e996623f96

          SHA256

          abbfc2c1959ddf89a9afdad6b4d3f1f4f81c5cec088a3c8252a28e48b7626ab4

          SHA512

          306f833f99e379d1333c2c030760acebe4891c4c3abc251e967ab7c1269cd17924559fe27ca42100a7c42b7a9cabaffd82a8c066bb2d78e3cfeda995da615a12

        • 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/780-151-0x0000000000810000-0x00000000008A4000-memory.dmp

          Filesize

          592KB

        • memory/2292-155-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-165-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-167-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-168-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-161-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-160-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-154-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-191-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-153-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2292-196-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2736-134-0x0000000002330000-0x00000000023D2000-memory.dmp

          Filesize

          648KB

        • memory/2736-135-0x00000000023E0000-0x00000000024FB000-memory.dmp

          Filesize

          1.1MB

        • memory/3772-213-0x0000000061E00000-0x0000000061EF3000-memory.dmp

          Filesize

          972KB

        • memory/3772-282-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-202-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-201-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-284-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-283-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-203-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/3772-198-0x0000000000400000-0x00000000004A9000-memory.dmp

          Filesize

          676KB

        • memory/4740-197-0x0000000000890000-0x0000000000990000-memory.dmp

          Filesize

          1024KB

        • memory/4740-200-0x0000000002230000-0x00000000022C5000-memory.dmp

          Filesize

          596KB

        • memory/4932-138-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4932-137-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4932-139-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4932-136-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4932-148-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB