Analysis

  • max time kernel
    167s
  • max time network
    184s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230220-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01-05-2023 15:37

General

  • Target

    208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe

  • Size

    721KB

  • MD5

    3a0628ca92a53ea743425b649ba5aa6a

  • SHA1

    e1a746348444f00e7264cca886eac961c510aabf

  • SHA256

    208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d

  • SHA512

    b4e1d0f70ba27912549835bcaeaac1a45eeca31a037619a295aea6514dc64de7400a6bb1027ed1f079932a8ed9d2052f1c2733beb6362575e7e32fc62f3daa2b

  • SSDEEP

    12288:KjVTKtGXnePQ8KtbPuk1iv8Fb2S4LtSGtr/0IUhip+dtNpKZXW2DQVuMARq:KjxKtG3aYtbb04b2S4jtDrWikd4tKCq

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .foza

  • offline_id

    JFtdCcJoPS9sBORc6lnQV44QG764HrKKynxqdVt1

  • 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-pSlL2pKijh 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: 0697JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.6

Botnet

5cb879265de0011bfc7588d5d251aee6

C2

https://steamcommunity.com/profiles/76561199499188534

https://t.me/nutalse

Attributes
  • profile_id_v2

    5cb879265de0011bfc7588d5d251aee6

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Signatures

  • Detected Djvu ransomware 18 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 3 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.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 1 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 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 44 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe
    "C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1416
    • C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe
      "C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2336
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\f73700aa-1e1f-4581-bb02-a8babf74ea3b" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3624
      • C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe
        "C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:424
        • C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe
          "C:\Users\Admin\AppData\Local\Temp\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4788
          • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
            "C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:736
            • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
              "C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              PID:756
          • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build3.exe
            "C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2252
            • 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:2468

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

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\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build2.exe
    Filesize

    453KB

    MD5

    770db2929307f3de98c1944fcd4adf92

    SHA1

    d84b969b5f77353f734ec251660b71f11f2a76bf

    SHA256

    581304c1ecc96f13dc1fcd999afed03ce2844937b63f463269352d9ba60666cb

    SHA512

    5bb5ac8146a540ea34aabee20b8f30a3b7fe1064f4cd18f1222aed63eb9a8a946c1e2c45a17b57e0e883ea578aacd255734aeb155451984c44ce1fb90cc66d03

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\00a80f9a-847b-4826-a97a-577b3b842c9f\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\f73700aa-1e1f-4581-bb02-a8babf74ea3b\208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d.exe
    Filesize

    721KB

    MD5

    3a0628ca92a53ea743425b649ba5aa6a

    SHA1

    e1a746348444f00e7264cca886eac961c510aabf

    SHA256

    208ecd351a27ab95e7dd4ff3b14fba67f47832da19fb11f521127dce57c1899d

    SHA512

    b4e1d0f70ba27912549835bcaeaac1a45eeca31a037619a295aea6514dc64de7400a6bb1027ed1f079932a8ed9d2052f1c2733beb6362575e7e32fc62f3daa2b

  • memory/736-182-0x0000000002440000-0x000000000249E000-memory.dmp
    Filesize

    376KB

  • memory/756-193-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-179-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-212-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/756-184-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-183-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-181-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-211-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/756-186-0x0000000000400000-0x0000000000472000-memory.dmp
    Filesize

    456KB

  • memory/1416-136-0x0000000004AD0000-0x0000000004BEB000-memory.dmp
    Filesize

    1.1MB

  • memory/2336-137-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2336-138-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2336-135-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2336-143-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2336-144-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2336-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-150-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-185-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-177-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-175-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-196-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-171-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-157-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-156-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-154-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-151-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4788-149-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB