Analysis

  • max time kernel
    79s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16-02-2023 20:20

General

  • Target

    7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe

  • Size

    753KB

  • MD5

    d8c4af7bb5feae20cf76ce99ab774f6d

  • SHA1

    fa83e038aade648156795b033cd7106c123775f6

  • SHA256

    7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08

  • SHA512

    e7eac87f5da41575530b974d74bb6fbf50b1deb1cec6c929f6c5778dca66c530f2d93d27357469ef9984a893e687fc2454ea1134b10000717f4ace2a032b57d0

  • SSDEEP

    12288:ZHgizzSiSULXuXovXSuIiJRxR9vYwIVp1yb+M5DezAWHTTTBnUoJMVy:ZHf7uXWvBJR8/1APCz1TTTOoIy

Malware Config

Extracted

Family

djvu

C2

http://bihsy.com/test2/get.php

Attributes
  • extension

    .hhee

  • offline_id

    dMMXkgwQTycP13C5xwPbHDSzhx1ZxiPgIMZXewt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://bihsy.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-UQkYLBSiQ4 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: 0647JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

2.5

Botnet

19

Attributes
  • profile_id

    19

Signatures

  • Detected Djvu ransomware 9 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 3 IoCs

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

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 3 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\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe
    "C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3476
    • C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe
      "C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1132
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\4179b820-ea48-4dff-85ac-6da6dd60ef61" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4660
      • C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe
        "C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4956
        • C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe
          "C:\Users\Admin\AppData\Local\Temp\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4308
          • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe
            "C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:428
            • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe
              "C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe"
              6⤵
              • Checks computer location settings
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:380
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2176
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:220
          • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build3.exe
            "C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2536
            • 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:4884
  • 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:3860
    • 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:5044

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\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

    e825419f5d91cbb7dd2c1407c2ae4c08

    SHA1

    daca95b9bffaff1aacb09d09292a41c5e98f0d12

    SHA256

    01a7d3b0ef49c660185536f53cfa2744c7784aef0981df4fd03ae06770b25376

    SHA512

    e4c0b3dea86821de18a10f43dac1263cf917075b620cd4f6ca22331dec27ca0c89b57145e33de8f502e09c1bcfaa400d27cb601f315b1a8b4c851f15064fd514

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

    Filesize

    1KB

    MD5

    0e8f1fb71254974e1d528b62e7b02e8b

    SHA1

    2275bdfb4779b15a886d9558ee3e0ce97112ddee

    SHA256

    f5e027fd76267c7668098a78724a82ca20ffb6818fc4e5b6eb9669866f32800c

    SHA512

    f084ae94658a9a8db6da8437cd8ad913e9820ff6f05f974ca165ee7af98a0cbf32e87fde1e263c9a7ec9d7877de44ee0ab1dd22269135a03a922d7dcc6473304

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

    Filesize

    488B

    MD5

    0deaa9105b83b0ddf228d13eb05464a3

    SHA1

    c928dc24880c313c6629dd0fff759dacdb1a0b9d

    SHA256

    d61462da035c25397702fb6d0062dbb3b9a81f13eaff2656fa7a6c8f7e5123aa

    SHA512

    209c53dc97aaa23d5c7cc7d4e90f4456dcd51076d43808cf51121b74c519d37d37a1c81ffe83e897344b79bf793b012d292d9dd39c6fd0f190c5c9cdbf3ea722

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

    Filesize

    482B

    MD5

    15a5e4b6b9bbee9134f6003cd662c5a7

    SHA1

    7ff5ce6702e578ba89645348a424ec062e7f3a1c

    SHA256

    c7a6b84f702a210a4e2a18d24226f479c6218db4c2872cca4a5c6b22704b8b7c

    SHA512

    19f76cccce24988bd7ab859777485e2b8fa5b00bb48aab0780302cb07f65cff1e3ee0f866fe08ccec85872e9cbecda157e4135681d4f60be3c76e497ef539677

  • C:\Users\Admin\AppData\Local\4179b820-ea48-4dff-85ac-6da6dd60ef61\7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08.exe

    Filesize

    753KB

    MD5

    d8c4af7bb5feae20cf76ce99ab774f6d

    SHA1

    fa83e038aade648156795b033cd7106c123775f6

    SHA256

    7f39f388bfa890f7ffcd9da2153e4be453edf535728e8158226e0942ead90f08

    SHA512

    e7eac87f5da41575530b974d74bb6fbf50b1deb1cec6c929f6c5778dca66c530f2d93d27357469ef9984a893e687fc2454ea1134b10000717f4ace2a032b57d0

  • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\60859b10-f148-4a2b-85ca-0cc229ab826b\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/220-187-0x0000000000000000-mapping.dmp

  • memory/380-163-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/380-164-0x0000000050BD0000-0x0000000050CC3000-memory.dmp

    Filesize

    972KB

  • memory/380-186-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/380-160-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/380-156-0x0000000000000000-mapping.dmp

  • memory/380-157-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/380-159-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/428-162-0x0000000000730000-0x000000000078E000-memory.dmp

    Filesize

    376KB

  • memory/428-153-0x0000000000000000-mapping.dmp

  • memory/428-161-0x0000000000828000-0x000000000085C000-memory.dmp

    Filesize

    208KB

  • memory/1132-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1132-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1132-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1132-132-0x0000000000000000-mapping.dmp

  • memory/1132-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1132-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2176-185-0x0000000000000000-mapping.dmp

  • memory/2536-188-0x0000000000000000-mapping.dmp

  • memory/3476-135-0x00000000023CA000-0x000000000245C000-memory.dmp

    Filesize

    584KB

  • memory/3476-136-0x0000000002500000-0x000000000261B000-memory.dmp

    Filesize

    1.1MB

  • memory/4308-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4308-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4308-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4308-143-0x0000000000000000-mapping.dmp

  • memory/4660-139-0x0000000000000000-mapping.dmp

  • memory/4884-191-0x0000000000000000-mapping.dmp

  • memory/4956-141-0x0000000000000000-mapping.dmp

  • memory/4956-146-0x0000000002409000-0x000000000249B000-memory.dmp

    Filesize

    584KB

  • memory/5044-194-0x0000000000000000-mapping.dmp