Analysis

  • max time kernel
    148s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230703-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230703-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-08-2023 23:51

General

  • Target

    7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe

  • Size

    794KB

  • MD5

    d5bc8dacafe28358e473f4de38404105

  • SHA1

    93a4106312c45f9f77daeb9c8f5f4d8df7d6252f

  • SHA256

    7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300

  • SHA512

    9d3626833a80ac84e99413a79130fe63321e8ca66af78e66ab3a94eee734185c65eb32b6f638cb79a1a8b446369323e49ca76a6784c7a5927d26f431fb733618

  • SSDEEP

    12288:VNZ2prmPdHx+86yAry/soRj3ILmBDPrx8rUQSV4oa1Fz:VN0U9x+83Oyhp3IcPir7SV4oeB

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 17 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 10 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe
    "C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4324
    • C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe
      "C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\7e6a020f-9eb0-441d-95ed-8e8c7bedf701" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:648
      • C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe
        "C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2732
        • C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe
          "C:\Users\Admin\AppData\Local\Temp\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4184
          • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe
            "C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3324
            • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe
              "C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              PID:4760
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 4760 -s 1896
                7⤵
                • Program crash
                PID:1528
          • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build3.exe
            "C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3120
            • 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:4908
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4760 -ip 4760
    1⤵
      PID:4816
    • 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:2776
      • 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:2756

    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

      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

      12a9c2cc72b8b0e9840fd14a18a253d5

      SHA1

      bc8a9940e3e9cd6c262b00e47c6f0117989f89e9

      SHA256

      ec9ab82d3194d160eacaf5439075d8be48b49f321d0ddd5940313b8eae307fd8

      SHA512

      1b4c5f8490e8f56c71c2fd4b36011b053ecbcd455aac6c1569a70bacd7e0a6cf0f82abca73bf44bce5dc1d4f84500a516a2a79e0e96731ededff3c50224b28b1

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

      Filesize

      482B

      MD5

      252c1db96764b6f1a5772cc9f5c26c8a

      SHA1

      8ffd8453f5eea77de4f9e0f03df12c9747bad679

      SHA256

      f83d90113a39d5c58063aef6290e10d6d2c2454a36f6785e86f528f631d7266b

      SHA512

      ad5cac86312b8b3e9950e02c2e35cb4a664d610b4be5375c6451162f54fccbfcce52121d14e4d2671acc322ceee683b5c747bca5aacabb907338f3a4ba074daa

    • C:\Users\Admin\AppData\Local\7e6a020f-9eb0-441d-95ed-8e8c7bedf701\7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300.exe

      Filesize

      794KB

      MD5

      d5bc8dacafe28358e473f4de38404105

      SHA1

      93a4106312c45f9f77daeb9c8f5f4d8df7d6252f

      SHA256

      7aec1e909618cca4a58a7536d91dfcaa679e7e4e9306e5862d1e4bea2b6e6300

      SHA512

      9d3626833a80ac84e99413a79130fe63321e8ca66af78e66ab3a94eee734185c65eb32b6f638cb79a1a8b446369323e49ca76a6784c7a5927d26f431fb733618

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe

      Filesize

      449KB

      MD5

      304dcbfad357a684b36d2d639cdbc3eb

      SHA1

      428c58d8c86c49e28bc9958608817bf6a97dd780

      SHA256

      bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

      SHA512

      8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe

      Filesize

      449KB

      MD5

      304dcbfad357a684b36d2d639cdbc3eb

      SHA1

      428c58d8c86c49e28bc9958608817bf6a97dd780

      SHA256

      bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

      SHA512

      8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe

      Filesize

      449KB

      MD5

      304dcbfad357a684b36d2d639cdbc3eb

      SHA1

      428c58d8c86c49e28bc9958608817bf6a97dd780

      SHA256

      bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

      SHA512

      8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build2.exe

      Filesize

      449KB

      MD5

      304dcbfad357a684b36d2d639cdbc3eb

      SHA1

      428c58d8c86c49e28bc9958608817bf6a97dd780

      SHA256

      bd5aff6936d77e3deae4e45195b44ec5d4e7ba4f2a9dfe68ee7d6f7be2cfd97a

      SHA512

      8dd618a8a22c3e7f0f19287c6ca8135959f34f30a5d2e19f10f71c45a6b7c8c7dc0900b3e23c3ae479455cd1ce94a744c0841c26bde28f28ef8552130d465d43

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\cda02426-2bc7-4c0e-83a0-507130077dda\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

    • memory/1028-136-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1028-135-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1028-150-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1028-139-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/1028-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3324-185-0x0000000003F30000-0x0000000003FA7000-memory.dmp

      Filesize

      476KB

    • memory/3324-184-0x0000000002410000-0x0000000002510000-memory.dmp

      Filesize

      1024KB

    • memory/4184-156-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-262-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-172-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-171-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-164-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-169-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-165-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-157-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-153-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-196-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4184-154-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4324-133-0x0000000004130000-0x00000000041C1000-memory.dmp

      Filesize

      580KB

    • memory/4324-137-0x0000000004130000-0x00000000041C1000-memory.dmp

      Filesize

      580KB

    • memory/4324-134-0x0000000004320000-0x000000000443B000-memory.dmp

      Filesize

      1.1MB

    • memory/4760-197-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-212-0x0000000061E00000-0x0000000061EF3000-memory.dmp

      Filesize

      972KB

    • memory/4760-256-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-258-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-257-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-186-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-202-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB

    • memory/4760-201-0x0000000000400000-0x000000000048B000-memory.dmp

      Filesize

      556KB