Analysis

  • max time kernel
    146s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    21/08/2023, 12:40

General

  • Target

    f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe

  • Size

    754KB

  • MD5

    9b2334c73194a1573fad573bf1c1d958

  • SHA1

    470423772bce33d06f07e584a40f53edfa2d9ef4

  • SHA256

    f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0

  • SHA512

    2a9cd1c6b40dfa918b3dbffdad21f4f777082ee436d996e4c1f64053a41e708a1ad1e23678bafd5e54d59a5181b8e8ba8ad6ec39944f1cf49604cad96e1ea72d

  • SSDEEP

    12288:UiJQKLDTbZnOv/iAeHnR4oA33S18uIXekzHZYykfGbte8r+PVuxGyzqS:UURAHilqoA3COuhkzHZYykfGbwQqymS

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jasa

  • offline_id

    umIwyPwiSJOJvBcdwrWXqzHWO4ar4za6seqWE2t1

  • 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-41jgkAwnmH 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: 0762JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.2

Botnet

35aa2808fb90f9e9dac907e1be77f310

C2

https://t.me/odyssey_tg

https://steamcommunity.com/profiles/76561199541261200

Attributes
  • profile_id_v2

    35aa2808fb90f9e9dac907e1be77f310

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.30 (KHTML, like Gecko) Chrome/115.0.1.0 Safari/537.30

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).

  • 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 8 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe
    "C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4344
    • C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe
      "C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4976
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\5bf78eae-2c9d-43a2-bf35-7448d118c967" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4516
      • C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe
        "C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:316
        • C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe
          "C:\Users\Admin\AppData\Local\Temp\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe
            "C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3640
            • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe
              "C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:2092
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:5076
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3820
          • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build3.exe
            "C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1036
            • 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:3816
  • 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:324
    • 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:4820

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

    7d3bcaff902cddff14871d4bfd9a8cd9

    SHA1

    877e3549776f5cc3f06b1b7f45dcff0f5077fb91

    SHA256

    99545c940eb140e8c0ac9f28aad68f7f94258eaa60de3778352ef990821d76b0

    SHA512

    89e4820812cc6bd2c047890cb452bb66225df9259fb928025751dec6944b0ff9e50e867d4706e0d09c2271e691516677ca338c38707721012ee7392db88aa4fc

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

    Filesize

    1KB

    MD5

    415983456362f0e4b08d1413a0844cae

    SHA1

    70cb98746fd705a2ef138a5f2f9406f128599d1c

    SHA256

    584a780011a45779fdcbd609993ba9d33daec26cce56af44b73b6f9120702f37

    SHA512

    1fc6892190cf6b5d5e0bd11dc9fda67b5ec80b08837bd5e6871f3bde28132b97dcd69159481ac89fd2e9ddb08bdc2c78e0e8ff942e240f9443e412b69d359345

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

    Filesize

    488B

    MD5

    0fe8e9bb2287d65e9ee0f18d1a1c7e85

    SHA1

    bfae1ab2b127b0ced20f6308fd445228d5fda34f

    SHA256

    5dbc2066cc3b41234f908e8a5577338969f7a3a897d18c3c0b10b52fcb42be11

    SHA512

    980d4d5f95878ee60f540523c64f91cba489dcc95c2bcd7c5fe4c9d9fb1a3e63ec5bb976d1d23dd6172e148d661cf8939f9f18d0f0b4b92bf95824d59c8cd13e

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

    Filesize

    482B

    MD5

    78a96b6bc6a31ac2fa26ba043c414a83

    SHA1

    391d69a4e2bf9a8c0eb3237070a8d992d9a8940a

    SHA256

    25919ff8c5b1875f6888ec698e1c40f282407da8e2ae099b2fb07f33b5c72e83

    SHA512

    60b4385c7e5acf94c1718cbf0f0b01494270d919a6e3c3b8fa1893eaba6ba70a6be0a998e54e576f0aa07e78efaaad6b0d223106278a13af8f3f20e3ebe82a1b

  • C:\Users\Admin\AppData\Local\5bf78eae-2c9d-43a2-bf35-7448d118c967\f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0.exe

    Filesize

    754KB

    MD5

    9b2334c73194a1573fad573bf1c1d958

    SHA1

    470423772bce33d06f07e584a40f53edfa2d9ef4

    SHA256

    f2afc4622815c8b16661b9d31a194693d2c84306426208cd14c0e8f8baeaeab0

    SHA512

    2a9cd1c6b40dfa918b3dbffdad21f4f777082ee436d996e4c1f64053a41e708a1ad1e23678bafd5e54d59a5181b8e8ba8ad6ec39944f1cf49604cad96e1ea72d

  • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build2.exe

    Filesize

    375KB

    MD5

    6076ec9fc98856b3b627751f92843a35

    SHA1

    5520b12ee2f8d39d6c8def16c7d472d08d43ec65

    SHA256

    a3ec2956fea5d99ce309b2b2209dc4dbcbf5330482ebbe46a754eb8c0885a209

    SHA512

    36bba1852037db9c81808382bca048cd94dcdbdaa1e7108e39493fa4d48aa9164b79abb44fb2f766592516b586a558d14b20ae6e8ebb131f61d738b892a6d1be

  • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\f1b9dce6-19ae-470a-be30-e2f96d9f5b00\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/316-141-0x0000000003600000-0x0000000003691000-memory.dmp

    Filesize

    580KB

  • memory/1972-150-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-174-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-155-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-157-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1972-191-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2092-194-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2092-231-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-171-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-172-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-173-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-169-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-233-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/2092-232-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/3640-167-0x0000000002370000-0x0000000002470000-memory.dmp

    Filesize

    1024KB

  • memory/3640-168-0x0000000003F30000-0x0000000003F8B000-memory.dmp

    Filesize

    364KB

  • memory/4344-123-0x0000000003630000-0x000000000374B000-memory.dmp

    Filesize

    1.1MB

  • memory/4344-126-0x0000000003580000-0x0000000003611000-memory.dmp

    Filesize

    580KB

  • memory/4344-122-0x0000000003580000-0x0000000003611000-memory.dmp

    Filesize

    580KB

  • memory/4976-124-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-125-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-127-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-128-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4976-139-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB