Analysis

  • max time kernel
    144s
  • max time network
    124s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230221-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14/05/2023, 10:22

General

  • Target

    afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe

  • Size

    796KB

  • MD5

    71a1b287303f98b39932fad2681e4614

  • SHA1

    905f4e105101b80fb8df7bbcba968ec04aa06200

  • SHA256

    afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220

  • SHA512

    27a321b16ae2aacf526bb3c39606f9ec80930b7205cea400934928e29bc1d06fbbe816a9ddc33eceefd8fb54a3661ea6bf7c3bbb69778e2092f9e4033068e88b

  • SSDEEP

    24576:+QC11X6S18V5N8NKYARxJF3SpNREhS7BeGIMz:+DCrWif3SjuhS7B9bz

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .gash

  • offline_id

    gdTA3a9eBPJZlAHc7UhZKxuA2PF57q3j1xsfAkt1

  • 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-pznhigpUwP 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: 0704JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.8

Botnet

ef32d425b907146eeb9090dbc9455ab1

C2

https://steamcommunity.com/profiles/76561198272578552

https://t.me/libpcre

Attributes
  • profile_id_v2

    ef32d425b907146eeb9090dbc9455ab1

  • user_agent

    Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36 Vivaldi/3.7

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
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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
  • Accesses cryptocurrency files/wallets, 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 47 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe
    "C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:64
    • C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe
      "C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:988
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\09deba97-ca08-499d-bde8-30308f49277e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3412
      • C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe
        "C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4148
        • C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe
          "C:\Users\Admin\AppData\Local\Temp\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:100
          • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe
            "C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2416
            • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe
              "C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:3384
          • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build3.exe
            "C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3640
            • 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:2180
  • 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:4732
    • 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:392

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    1ec7302d6e6f4baa10b0016367fda028

    SHA1

    4cd143f0f1df8e98ab38db0917b89f060c3cbf64

    SHA256

    7a69cb8c27dfbcc250b7990102c2c97c9319b4972a690d59ba13962b11f5cbb7

    SHA512

    5b42a78c371becafe7843af58efbe05d8152ba88ab485d043fe4bee62ee116c5e0e8f38f342d58a20ec4cf9688d355b2ccbdd49d664ec3a0e2415cb6d23142a2

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

    Filesize

    1KB

    MD5

    b1315f77d64e889e666773cdff9a5163

    SHA1

    ee3e9bdffe5de6575b4a0b8266d9e90c37ceb487

    SHA256

    2484f13a778334cc615fe30cb894fb25be319eef02df9809de7fc1f3a09a6628

    SHA512

    80280d6fff9700b6ffa5f86b45bb392f8c63d34fa38f5c530c861d26b829115bbd9481f0102087086b0f87b6638055f56b4a98811f727a254ce2c5c07a8587ae

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

    Filesize

    488B

    MD5

    2f1d7983b0478d2561d675a455781f35

    SHA1

    d2211677a8f524cd6536605a11e233578352d2fe

    SHA256

    4a72af5319ffe6253e0c37ddc6be34c35e3b1a57fac1e1dea3336429c4a68866

    SHA512

    9d9b788bffb854bb5b00dc43816054dc2db7b1ea1cce908c567ac69015fb9e3e45c45fef05c272e9f4fc33ccd67bc4502cc75d90dfee8674ed88f38625142d1f

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

    Filesize

    482B

    MD5

    4b7320218572860eaea532164e5d62e2

    SHA1

    a08168fdd19f3b47ea2ea2b9bd6e99503ae86bc8

    SHA256

    b1d6fef3096a9debb8a4da4bf9bbf4e5c91ad55158c0702cade069da0bcf5df0

    SHA512

    7310318525b79facdd66b3361df35467468b160b00e9bddf58c2dcec255a29349f44604a4b7daaea468b16672bb160a81d695de0b970470b576a49eeb244683f

  • C:\Users\Admin\AppData\Local\09deba97-ca08-499d-bde8-30308f49277e\afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220.exe

    Filesize

    796KB

    MD5

    71a1b287303f98b39932fad2681e4614

    SHA1

    905f4e105101b80fb8df7bbcba968ec04aa06200

    SHA256

    afe4783246443f5e21edf244cdfa296a1738c1911aa4f458fb0fe4fe99209220

    SHA512

    27a321b16ae2aacf526bb3c39606f9ec80930b7205cea400934928e29bc1d06fbbe816a9ddc33eceefd8fb54a3661ea6bf7c3bbb69778e2092f9e4033068e88b

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build2.exe

    Filesize

    447KB

    MD5

    fb889bafcc6f226f1e7bfbaec1ae856a

    SHA1

    a04fd6e89eba5810017bf68c3a6842111ecdaf0e

    SHA256

    6e6061cd2d846e6be7058e35b0dab7f0513038a410a367be304e2e71c0bfb427

    SHA512

    39b4bacade7c740bf753f17a74afe71d05e27bbca64609a30495c778d16907e1c2766b2d822d63a8676d824b1090b3da704efa5615169e802a0af074590fb858

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\fee99b4a-437b-45c5-a612-1dc0ac678e34\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/64-136-0x00000000042D0000-0x00000000043EB000-memory.dmp

    Filesize

    1.1MB

  • memory/100-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-158-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-167-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-166-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-165-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-163-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-159-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-194-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/100-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/988-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/988-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/988-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/988-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/988-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2416-184-0x0000000002330000-0x0000000002387000-memory.dmp

    Filesize

    348KB

  • memory/3384-181-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-208-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3384-207-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-276-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-278-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-279-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-185-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB

  • memory/3384-183-0x0000000000400000-0x000000000046B000-memory.dmp

    Filesize

    428KB