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Analysis

  • max time kernel
    296s
  • max time network
    256s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    02/08/2023, 03:49

General

  • Target

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe

  • Size

    796KB

  • MD5

    e7803301ec5382c63fc1ea002133e0c7

  • SHA1

    62a4cacee5c0b02f5fe428be5dcf6d69c49177c6

  • SHA256

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b

  • SHA512

    44b67e34c79fa060da7abd42baae19fe6199c42f3f3bdf191ba8e89fd746f347f5c7af429025381370f19eaf5272a09ba2bf6ac8089cd6452356996425b5d1d5

  • SSDEEP

    24576:Jl0vw4qO+cvFug93Su2t/txD/93zAzyau:H0vNqevFuC3f2pF3zAzyau

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .poaz

  • offline_id

    Cr1qw6x3Gr36kVHAZvrjTBFecy9ksVLEfrUGCjt1

  • 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-MDnNtxiPM0 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: 0753JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5

Botnet

183caee054f0a0bfc81780194d9bc7cb

C2

https://t.me/versozaline

https://steamcommunity.com/profiles/76561199532186526

Attributes
  • profile_id_v2

    183caee054f0a0bfc81780194d9bc7cb

  • user_agent

    Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/111.0

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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • 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).

  • Program crash 1 IoCs
  • 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\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
    "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4892
    • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
      "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:412
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\485cf9a1-9427-40eb-b0ab-2503647298ae" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4288
      • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
        "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:672
        • C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe
          "C:\Users\Admin\AppData\Local\Temp\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2536
          • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe
            "C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2124
            • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe
              "C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:1224
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1224 -s 1760
                7⤵
                • Program crash
                PID:4652
          • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build3.exe
            "C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3472
            • 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:3028
  • 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:1372
    • 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:2340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    2KB

    MD5

    f15cc7f1027a56b71d5895c4897e916f

    SHA1

    0ebbf844932cb2d718ecf2a457694a6f83dd1dcc

    SHA256

    b658d543ca7a49216bc5d8a20c50855cbb72bb6d5c9d59067ca459eb5b726537

    SHA512

    c43a1089971458666265aeb229a932de5de10c6dc291067c5f705cf92de29bf5a83b1400364fef40f0866a47fe36c63e2a5415d55d6963ad41e51897252c8708

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

    Filesize

    1KB

    MD5

    2ac74d32fef934ceddc6a44b4ea0478b

    SHA1

    572ceb6de9d0b3e58aaa2903a56c4f4a2327a716

    SHA256

    64fedb27098214c70ac38a2cc7f226e8d4e3a7bf983de9040045625dc75ee424

    SHA512

    329c2251a90ee427d6fecb1a5740760cee28da2d5ad0cb10ef5dc2256e3af51443b7b482ce0c3ee8e253c48e29fb4b704082d8cde09fb4b1cf4382236920b9af

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

    Filesize

    488B

    MD5

    d33ddb5d52716771f5734d220fdb1da3

    SHA1

    68926471fcf260c2b571d7970afbcff585de308e

    SHA256

    bfa17a59f0052e9ec43242f962f847688f14bc848560b300ab222e09c9cb5f41

    SHA512

    b4276c1d97f3ed62da5ef534882dc1d8c23c67717cce187db39c1ada77e0df033a1b4ff1919667df0e17024e4b257ebb993293327961ab171a165d9ffecedbab

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

    Filesize

    482B

    MD5

    44598a1636e996345f816dce4b60272d

    SHA1

    c02e96f7daa18d0c2d0a1a45f9ab6c30b9617365

    SHA256

    931c86b3420676c7e8639ef426fad83d431f179ed5c57d9e554a72f308fdb7dc

    SHA512

    62644dbdb666d7f36cc097371ee014bb00f9f4faadd6a705bfe350fe6b0484b61df8dd246968ea16a9cabe47cd9376f8cfe00bf44de6a0b57d5651750f0c390a

  • C:\Users\Admin\AppData\Local\485cf9a1-9427-40eb-b0ab-2503647298ae\a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b.exe

    Filesize

    796KB

    MD5

    e7803301ec5382c63fc1ea002133e0c7

    SHA1

    62a4cacee5c0b02f5fe428be5dcf6d69c49177c6

    SHA256

    a0a191d35712c0098d8f2b58af434df8ca22c7ae5c86f2ed50e577d312e2d47b

    SHA512

    44b67e34c79fa060da7abd42baae19fe6199c42f3f3bdf191ba8e89fd746f347f5c7af429025381370f19eaf5272a09ba2bf6ac8089cd6452356996425b5d1d5

  • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build2.exe

    Filesize

    449KB

    MD5

    304dcbfad357a684b36d2d639cdbc3eb

    SHA1

    428c58d8c86c49e28bc9958608817bf6a97dd780

    SHA256

    bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

    SHA512

    8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

  • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c1d729f2-8779-4a34-a89b-74597f928443\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/412-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/412-120-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/412-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/412-123-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/412-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/672-136-0x0000000004090000-0x0000000004122000-memory.dmp

    Filesize

    584KB

  • memory/1224-228-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1224-227-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1224-169-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1224-189-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/1224-165-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1224-167-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/1224-168-0x0000000000400000-0x000000000048B000-memory.dmp

    Filesize

    556KB

  • memory/2124-163-0x0000000002690000-0x0000000002790000-memory.dmp

    Filesize

    1024KB

  • memory/2124-164-0x0000000002450000-0x00000000024C7000-memory.dmp

    Filesize

    476KB

  • memory/2536-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-154-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-185-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-140-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2536-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4892-117-0x0000000004260000-0x00000000042F2000-memory.dmp

    Filesize

    584KB

  • memory/4892-121-0x0000000004260000-0x00000000042F2000-memory.dmp

    Filesize

    584KB

  • memory/4892-118-0x0000000004300000-0x000000000441B000-memory.dmp

    Filesize

    1.1MB