Analysis

  • max time kernel
    145s
  • max time network
    142s
  • platform
    windows10-1703_x64
  • resource
    win10-20230703-en
  • resource tags

    arch:x64arch:x86image:win10-20230703-enlocale:en-usos:windows10-1703-x64system
  • submitted
    23/08/2023, 16:24

General

  • Target

    830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe

  • Size

    755KB

  • MD5

    36130703f772743cbfeb1d09f3f29bbf

  • SHA1

    3f2e38466265041698e844ca2a4477e1ab321a9b

  • SHA256

    830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04

  • SHA512

    00391ec7aa3b3e89537dfedf465df05dfee8324e01c69e5ffc69414d28f3b9a95e685e4a62c812db6b6a042909196b7afd2f37ae93471c2c1467bcf421a316f0

  • SSDEEP

    12288:k7Peeh6XPvrSmz1IXqE13aE60dr12wB0NDC5YHH2RDXDHgmicWCa/Mdv4K0Qls:kzJo3r1z1KX1qE60/00NDXDeTR/MuK1l

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wzqw

  • offline_id

    pGPY4MKNHaEeN9pLKNW37rI0mblzUZFtPsjZ8Ht1

  • 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-E3ktviSmlG 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: 0765zSjfr

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.3

Botnet

562ce294a991b18054802a17b24ce0f9

C2

https://t.me/buukcay

https://steamcommunity.com/profiles/76561199544211655

Attributes
  • profile_id_v2

    562ce294a991b18054802a17b24ce0f9

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 4 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\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe
    "C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2472
    • C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe
      "C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3796
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\6d7341f9-3f0d-4656-8a52-5953f949aca4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:200
      • C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe
        "C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1192
        • C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe
          "C:\Users\Admin\AppData\Local\Temp\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4684
          • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe
            "C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3252
            • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe
              "C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:5064
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4960
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:2056
          • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build3.exe
            "C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:656
            • 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:4116
  • 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:3948
    • 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:4492

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    4849ded5f45cec7e511d14847c702399

    SHA1

    c91f233dd80fbdbf3eec4917a1289b6ce94cb3ee

    SHA256

    2481d98926336d63129e6b28c64fd1beee1e411c5dccb5919027f8a01fe5dd51

    SHA512

    5932d462f714fa61c80351bad47af51601985450627afa1fb938f9187168dd9ceee993716c0a3fa26b82ef244c9ca0794b7bf49dee238c738039c5c1f6c4acab

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

    Filesize

    1KB

    MD5

    1f94d4d280ff409d554abab350d17ef1

    SHA1

    6df310f84e1b99164310b7324996b71a3cb3fe24

    SHA256

    047a1f77bd04d3b566fe9f71e653e788ba99ecfa954cd169fde5b70517350a11

    SHA512

    25e67e76e011e6cb6bfd4654daef6a7c30d67db62006519549b209b3e0f6714437e08ce5ff2f26a8da54e9f0b37482ceb1ad0c2e15ee7cdb4d79347d7e0309fd

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

    Filesize

    488B

    MD5

    54afce6e17c0b8bd13956960c0ddd2fc

    SHA1

    7e0040be83475ad3b2dedad7f0675e492a502fe4

    SHA256

    daaa648552555235e582a6ceb28ae9137e55c7a83672d5eb7dba445789febcb6

    SHA512

    ed925326d1ceeb27801739191948d851dacffe3ede89dd12362043cb547cabdd9df8806092fe2fcd0b62f0249432b64c1a31557a0b6bbff37ebd8857d3fe91cb

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

    Filesize

    482B

    MD5

    85b30d7cd8cd5edc05e13094811d209b

    SHA1

    b05c66cbf8464541194713a352167864d90be826

    SHA256

    1ec262d38218bfe6f2a3b2d4c832bbd343182e5596cd2ba6944449a69e254843

    SHA512

    71886e777d94e5f517c768b60f8371c758c84e0d3f39a1f8c531050f8864314a85ccdc3d5faf93b5e37b32d08cd69f061b8bc895729508e67964e6486da6101b

  • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build2.exe

    Filesize

    361KB

    MD5

    9545d2c1b9c67ae6c7536fa637f6e8dc

    SHA1

    b2654f52dfde5ae8791588d224fe707784a3c6fd

    SHA256

    44f9e81a2e056d24c0da23b8be38d37eceefe06e5bc6dbf67df2b18caf6223b8

    SHA512

    6eef0a2feec33e8bf1a6ede2fc62ee531299ce49759df07a463e8c5476617184d9b8e5a21fbb4b6641131a7130474f39800839c3d0127ba84b8f5a7b3fdffa4c

  • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\0862d055-ec86-42a3-9c15-0ec9ea3649a2\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\6d7341f9-3f0d-4656-8a52-5953f949aca4\830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04.exe

    Filesize

    755KB

    MD5

    36130703f772743cbfeb1d09f3f29bbf

    SHA1

    3f2e38466265041698e844ca2a4477e1ab321a9b

    SHA256

    830aabb9df49b8e0c5dfb0ff9972484402427156b0035b790b20f84d72f6fc04

    SHA512

    00391ec7aa3b3e89537dfedf465df05dfee8324e01c69e5ffc69414d28f3b9a95e685e4a62c812db6b6a042909196b7afd2f37ae93471c2c1467bcf421a316f0

  • 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/2472-0-0x0000000004110000-0x00000000041A1000-memory.dmp

    Filesize

    580KB

  • memory/2472-4-0x0000000004110000-0x00000000041A1000-memory.dmp

    Filesize

    580KB

  • memory/2472-1-0x0000000004290000-0x00000000043AB000-memory.dmp

    Filesize

    1.1MB

  • memory/3252-59-0x0000000001A40000-0x0000000001A71000-memory.dmp

    Filesize

    196KB

  • memory/3252-45-0x0000000001A40000-0x0000000001A71000-memory.dmp

    Filesize

    196KB

  • memory/3252-46-0x00000000035A0000-0x00000000035FB000-memory.dmp

    Filesize

    364KB

  • memory/3796-16-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3796-2-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-44-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-19-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4684-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5064-61-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-72-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/5064-51-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-110-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-111-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-112-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-58-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB

  • memory/5064-60-0x0000000000400000-0x000000000046F000-memory.dmp

    Filesize

    444KB