Analysis

  • max time kernel
    293s
  • max time network
    184s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    14/07/2023, 04:25

General

  • Target

    4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe

  • Size

    757KB

  • MD5

    d178460d222c41eede5e6ce2e392935b

  • SHA1

    9b6fdcc4f31195ce2855015da9da7999ffd83eec

  • SHA256

    4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a

  • SHA512

    a1716a5b8b12a6923aa950ef1c4bc823072a3889a8b53fc141293222b5eb1e4f2ef3632eb23d5f7d23f9d50469225a6544751cf1ef537e1453225c105112f02c

  • SSDEEP

    12288:mHqs9ugfJi8FG1gA2cpI18zPGqChurXcqfnXZY5KcBHOM/uHSDsPjxB99fud:s59ugf8b1gxcm18y1urXPfne5xBHOM2I

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .gayn

  • offline_id

    idjLJVXs65t0hiY0Usr4A1G0xEEwvvs9JcZKN0t1

  • 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-ZyZya4Vb8D 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: 0743JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

4.7

Botnet

https://t.me/eagl3z

C2

https://t.me/eagl3z

https://steamcommunity.com/profiles/76561199159550234

Attributes
  • profile_id_v2

    https://t.me/eagl3z

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36 Edg/114.0.1788.0 uacq

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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe
    "C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4124
    • C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe
      "C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2108
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6295d00f-2eef-4d8a-9e4c-fec6ac62e0bd" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3028
      • C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe
        "C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1656
        • C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe
          "C:\Users\Admin\AppData\Local\Temp\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4712
          • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe
            "C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4972
            • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe
              "C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:4856
          • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build3.exe
            "C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2784
            • 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:5084
  • 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:4428
    • 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:3092

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

    ec50490b07b4d77ae984e14377e81faf

    SHA1

    74330d98bc1ef271a37b3ae273efcccab1c335be

    SHA256

    30afe1a3bcc9efa0dd4619e272548ef4ecc76817e67e04f69cb83f1e4380d716

    SHA512

    3972532782f05f3d24f6e8e3ab8362dfc2603c24ffe5728404977b4d13f3dc360b76b6ab8056da98845f53d5d12d9d24981d0e6edcc042d0b885114417945c8f

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

    Filesize

    1KB

    MD5

    f232260646b9219a0d25be2ba7d3e80f

    SHA1

    748c809b09ab1d39ef17ec453428cbc2449ef7b9

    SHA256

    3217032d47b15ce1c91eb2dc77e765dd9acffb0029756f4dd02ab6c12e0bd65e

    SHA512

    6eb067b352e6920b2fb6981d37ea3e3f59e3b5725a4ca797c34463b6e52e0b9e748d0cf31496b54c989bf7126d55b40d44850b7122f4d9fee3593926c4c6fedb

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

    Filesize

    488B

    MD5

    1dbb684c96eac2cc97f8833a5e1426d1

    SHA1

    2c17c16e0bfa7c9c5652af48b3ea4abb435a1ec6

    SHA256

    4713e73d1f6c30c78eb9fedda3ef8cb742385b7b3d5888aa60034e2a2f335f13

    SHA512

    f48151a061fc0db98ca445e04c3b08830d98fba8e766a4069605e76e331bc547bbef877c154f33ee6a22b73a4f728a1de543d94ab04bd3a56d5af74f51955398

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

    Filesize

    482B

    MD5

    c96bb5aa5a6aaf340b42abbb6723d3fb

    SHA1

    3cd92dcf3b92f8cc785f1e6ce11fe09d05e66fa9

    SHA256

    40f1a7594d64a7b9ece01ab9fdffe173bc9d65d7447845ee9e01128dead449f7

    SHA512

    c3ef9dc913fcfcff0eee11cb85f2002237e45837fecfe8c2a358ad22fb766abdf846e1303ff9c12d276db569c4d97b416d790b3ebb6918e1605db62ad8faf4e9

  • C:\Users\Admin\AppData\Local\6295d00f-2eef-4d8a-9e4c-fec6ac62e0bd\4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a.exe

    Filesize

    757KB

    MD5

    d178460d222c41eede5e6ce2e392935b

    SHA1

    9b6fdcc4f31195ce2855015da9da7999ffd83eec

    SHA256

    4b7f7d377717133acc0a704c0e0781e8235649deaf6b9da75866bcf82f4d9a2a

    SHA512

    a1716a5b8b12a6923aa950ef1c4bc823072a3889a8b53fc141293222b5eb1e4f2ef3632eb23d5f7d23f9d50469225a6544751cf1ef537e1453225c105112f02c

  • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build2.exe

    Filesize

    447KB

    MD5

    08819e55df0897a6dded1e5e6bf83601

    SHA1

    22d39992c6245b86ee8b14e0cc820e46a9094c45

    SHA256

    3dae32e22775721f2f9de5fec79dbcd8d62adaeb057b47c4524e02d130a43b25

    SHA512

    36ed6a07776139fbc4e1f4a90745633466ce40db8a374417cafc5846e3bd7277c56673dc98ef9b2379f286d3f0bacdce62e67f6b01fe177ed1dafa1065036b8b

  • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\a0a0fae9-626d-4ec0-ab54-efb2c0e5f830\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/1656-140-0x0000000003830000-0x00000000038C8000-memory.dmp

    Filesize

    608KB

  • memory/2108-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-126-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2108-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4124-121-0x0000000003830000-0x00000000038D0000-memory.dmp

    Filesize

    640KB

  • memory/4124-122-0x00000000038D0000-0x00000000039EB000-memory.dmp

    Filesize

    1.1MB

  • memory/4712-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-156-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-161-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-179-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4712-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4856-173-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-193-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4856-168-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-170-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-242-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-243-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-244-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4856-172-0x0000000000400000-0x00000000004A1000-memory.dmp

    Filesize

    644KB

  • memory/4972-167-0x00000000006A0000-0x00000000007A0000-memory.dmp

    Filesize

    1024KB

  • memory/4972-171-0x0000000002140000-0x00000000021CD000-memory.dmp

    Filesize

    564KB