Analysis

  • max time kernel
    154s
  • max time network
    138s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    24/09/2023, 09:02

General

  • Target

    38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe

  • Size

    817KB

  • MD5

    122eea8b06dfbe70868ea5662bf51213

  • SHA1

    63cef0978a4b5dc1da0b67976cedf5191cdcac23

  • SHA256

    38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026

  • SHA512

    621e6a01509a0ce02f94e666825d481082c6e82cea7ac1cce415b97f760a1035346fcd3f6b827fb11f49a23241fc127f9f3422a22f51e2e3aa0ce815cba7f0fa

  • SSDEEP

    24576:nnwkSqtNPOWH9AT7TB0cnJelP+J9JUZs:nnCqDdAFpeRY

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .azqt

  • offline_id

    GQ9DjFmWFDqpsyzsOnaxE1Xr4MPL1dG4vPfPDNt1

  • 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-e5pgPH03fe 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: 0790

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.7

Botnet

5c0b4a12d6c03dd98ed431d3eded2169

C2

https://steamcommunity.com/profiles/76561199553369541

https://t.me/dastanatg

Attributes
  • profile_id_v2

    5c0b4a12d6c03dd98ed431d3eded2169

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_8) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/16.7 Safari/605.1.75

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
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • 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).

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • 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 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe
    "C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3124
    • C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe
      "C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4776
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\ec0908c0-da55-40b2-8889-d9dc5978a204" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:224
      • C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe
        "C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1604
        • C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe
          "C:\Users\Admin\AppData\Local\Temp\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3084
          • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe
            "C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4176
            • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe
              "C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3844
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4624
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4116
          • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build3.exe
            "C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4488
            • 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:4548
  • 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:4252
    • 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:928

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

    ea42a7ee6b4feb94720dcd38dfaca03e

    SHA1

    09e132a3dad531f41d561f96e447107df3826c8d

    SHA256

    49024bbec636af6e8a88991af1f95df745755015ab8e0b9be1d9bcaa0c44aae9

    SHA512

    362de39769654d28579284463da7a5116f248ebf8b62f4fbe4a8f57a5d701c07dec3b3d8f35130cfd2307511117754cb8438922773e94812f7a84f974451d8fa

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

    Filesize

    1KB

    MD5

    e493991c8b05edd2d0c73af44034a56d

    SHA1

    91aa82532ca1609682dd3599fd91e794c4e42dab

    SHA256

    b142563e39d86fe31530727b07a285d4f4f9801380b1f8012792467eba14c026

    SHA512

    93ab83121912acee80cb47f68ed0279b83f93d58daa8803741608d507a1b18ce0ea4b5448de12649fd10e8b247122b65ef2340d44f7e04c59c8b7cf4b38690d3

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

    Filesize

    488B

    MD5

    e51c25b5b5c83c2d4ee2333ec9053e3d

    SHA1

    450b3c39aa6e3fc84baed13494d2e451a7f3568c

    SHA256

    19c59b0c4d89f9d04e0d4dae48c9f411d93ab5314f49d36e84b5b99e5536eb48

    SHA512

    26d509117552fc0392cd184c809ca3212f37444d5e6f53e7bddad5d2473f1470395937eba4fc467d27dd6a3045823bcc710095b2966ae8f750b50f1a8f8e39e3

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

    Filesize

    482B

    MD5

    f691abbb9739aeb1d41a613f53c32308

    SHA1

    b83b0ee16af501d62663cb9b884e1b61ed94f63f

    SHA256

    a46e06b7692bdaa923f2b23be9446f07a06b3292f67a1ac0a1553edbac8aaf66

    SHA512

    2f57880da28ce1727217539f2ee58fe6adf8dbb4175592bd402af8b7ba2d82992e880d7fa95bfa11214839d4ea25df98887891488c1b39f555a4b199fb9579fc

  • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe

    Filesize

    316KB

    MD5

    b298c49f1808cc5d93dcc3dfc088b10f

    SHA1

    c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

    SHA256

    ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

    SHA512

    1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

  • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe

    Filesize

    316KB

    MD5

    b298c49f1808cc5d93dcc3dfc088b10f

    SHA1

    c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

    SHA256

    ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

    SHA512

    1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

  • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build2.exe

    Filesize

    316KB

    MD5

    b298c49f1808cc5d93dcc3dfc088b10f

    SHA1

    c0b8e909d0ef573e0f5a4e25870a63f3f6ee1306

    SHA256

    ffaed8dcf0282df833b74faf419729dc20951ee7edbb58103fa5c582e93d5f3a

    SHA512

    1b75aeaa793b5aa92769f68bb0f677206394f5b28e7ac1a23f6be923af812a5a9033920af0c2de1e6805e46a5c9ec283ddecd879b1264d75d7b4190266028895

  • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\10b46c86-9240-4676-9e18-0c895e6ffd15\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\ec0908c0-da55-40b2-8889-d9dc5978a204\38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026.exe

    Filesize

    817KB

    MD5

    122eea8b06dfbe70868ea5662bf51213

    SHA1

    63cef0978a4b5dc1da0b67976cedf5191cdcac23

    SHA256

    38eb508a456cc01cea52e63aa639832199a2754530b57a78e457c33520f7e026

    SHA512

    621e6a01509a0ce02f94e666825d481082c6e82cea7ac1cce415b97f760a1035346fcd3f6b827fb11f49a23241fc127f9f3422a22f51e2e3aa0ce815cba7f0fa

  • 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/1604-20-0x0000000004110000-0x00000000041AD000-memory.dmp

    Filesize

    628KB

  • memory/3084-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-42-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3084-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3124-1-0x0000000004290000-0x000000000432E000-memory.dmp

    Filesize

    632KB

  • memory/3124-2-0x0000000004330000-0x000000000444B000-memory.dmp

    Filesize

    1.1MB

  • memory/3844-72-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3844-110-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-57-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-112-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-59-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-60-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-61-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3844-111-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4176-56-0x0000000001FD0000-0x0000000002021000-memory.dmp

    Filesize

    324KB

  • memory/4176-55-0x0000000001F60000-0x0000000001F8E000-memory.dmp

    Filesize

    184KB

  • memory/4776-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4776-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB