Analysis

  • max time kernel
    144s
  • max time network
    126s
  • platform
    windows10-1703_x64
  • resource
    win10-20230220-en
  • resource tags

    arch:x64arch:x86image:win10-20230220-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/04/2023, 16:30

General

  • Target

    44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe

  • Size

    700KB

  • MD5

    a04c891b8ffebdf58dc2338da1e79d2a

  • SHA1

    0189e916d9bee2df33f06a4e54f7919042da3428

  • SHA256

    44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd

  • SHA512

    a66ed2d0f90cde88f871b7a176cc222cf8c834052f3a382d29039d07bbc74bd1a4e2fa66ae96f8da10610599ed2a91194cd0ea2f99eb612c9b4454570980883d

  • SSDEEP

    12288:Tg2Xq2kMw7RUSzFYR4sFppbCaGEcKzm0U99WgkBRDAwT1LynYQ:bXPkj7RbzeR4sFXCF8UNkXDLyn

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .kiop

  • offline_id

    iIlWwF8bQ6n1I71JdbwrJ0LNue9L0IeEoD6KAJt1

  • payload_url

    http://uaery.top/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-lEbmgnjBGi 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: 0682JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.3

Botnet

b12e0b8009914d9dfb3d1b8ced1d3a65

C2

https://steamcommunity.com/profiles/76561199492257783

https://t.me/justsometg

Attributes
  • profile_id_v2

    b12e0b8009914d9dfb3d1b8ced1d3a65

  • user_agent

    Mozilla/5.0 (X11; Linux 3.5.4-1-ARCH i686; es) KHTML/4.9.1 (like Gecko) Konqueror/4.9

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
  • 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). Likely ransomware behaviour.

  • 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\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe
    "C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1008
    • C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe
      "C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4512
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\57a8f5dd-9acd-49b7-ba2b-82e8f4f0897a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2292
      • C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe
        "C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4304
        • C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe
          "C:\Users\Admin\AppData\Local\Temp\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4116
          • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe
            "C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3688
            • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe
              "C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3768
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:520
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5104
          • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build3.exe
            "C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3700
            • 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:4720
  • 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:3244
    • 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:4128

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    76a44c88579ed3e3d8ab8478d3cbc539

    SHA1

    539ac9f837efb72f7c9131b8974b747e7f65c049

    SHA256

    ba7af773db817754379099994f9bc4447dcdd2c2160137fafc1a4a88f68a89a5

    SHA512

    772aa0b4c0e8816ed1aa6be6ce3de1b62777bf34adc4db5b9c547e00f53112fd4b7c79481f7f10bc72be83fb0298f9c57fdb715dd70292d2bdc1fbe773178558

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

    Filesize

    1KB

    MD5

    c97719e1ef3b8a984fefecd795e00952

    SHA1

    840ddea4fb5b5bd686561ca3773e41ec0bb6eebc

    SHA256

    b2e05305cab46dd563531bf03b63104237845b7279f7b986d8659bf63f3de3a0

    SHA512

    bb24c4e897b044615c19d1d8496d73c8ed2a058d44167099616c9f02707409ca3a50d39ff4a1d644586fbda3bf797f2b62251a631b7379c39f9a912d446c54b0

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

    Filesize

    488B

    MD5

    8a75da1254d87be72ebe32d750edfde0

    SHA1

    83dc433cdc39cf12f65658a906a1ac2190933439

    SHA256

    5bf4dacb8b4739cadcf4c703710ac44f75a91686fb43a7e16e6d21593d51c44a

    SHA512

    dfdf83f53fcc5a8eeecb5aa79b79104523ef890c028de4e1316dd128a6bc34d41d48dd53e4046c074920080e33146c7a298d3041d5e32d351755fdae31d5d1ed

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

    Filesize

    482B

    MD5

    d10b9760cb2308123ecf61acc7db9304

    SHA1

    e9cc033343cd28227070cf75e589f50e8a8d002b

    SHA256

    3f0941ec173d6897893468ca044dcff0aac14522941bd1b6effcbdd69787b5c5

    SHA512

    d209db3a518078829e53192b87e5cdbfb93f3f4266b15da33c5d133e0ec2fdf4037965bd9181ca7b356b2a1fc309ea7de7b0946894161fb824bb64e3bceaf225

  • C:\Users\Admin\AppData\Local\57a8f5dd-9acd-49b7-ba2b-82e8f4f0897a\44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd.exe

    Filesize

    700KB

    MD5

    a04c891b8ffebdf58dc2338da1e79d2a

    SHA1

    0189e916d9bee2df33f06a4e54f7919042da3428

    SHA256

    44ee2bbd96de5e4686e69920af35b79d815b9b02cce39f83ce43aba85cdb45fd

    SHA512

    a66ed2d0f90cde88f871b7a176cc222cf8c834052f3a382d29039d07bbc74bd1a4e2fa66ae96f8da10610599ed2a91194cd0ea2f99eb612c9b4454570980883d

  • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build2.exe

    Filesize

    358KB

    MD5

    e9a006e6c407decd13f6fe02934482f4

    SHA1

    328147c1770b09047619e1ca23e325516f800237

    SHA256

    c73c5027ec11576250105ea0664c33a51f3a19901c6bcbfd84d88c94f3482435

    SHA512

    621adf1019bdf8ec46806ce35139e99e07d14bf09af7e3eb87ba8df40a9a3561a3b43c69141a6a70ec7874823182dfe9216838437f4dd90273442d0fce71df3d

  • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\8adc16b9-988a-4131-9c05-0eaaf5eb8e0d\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/1008-120-0x0000000002370000-0x000000000248B000-memory.dmp

    Filesize

    1.1MB

  • memory/3688-165-0x0000000000870000-0x00000000008C7000-memory.dmp

    Filesize

    348KB

  • memory/3768-162-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-166-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-252-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-247-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-246-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-232-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-188-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3768-164-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/3768-171-0x0000000000400000-0x000000000046C000-memory.dmp

    Filesize

    432KB

  • memory/4116-144-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-151-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-143-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-173-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-149-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-153-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4116-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-119-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-122-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-118-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4512-121-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB