Analysis

  • max time kernel
    60s
  • max time network
    148s
  • 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 23:11

General

  • Target

    b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe

  • Size

    753KB

  • MD5

    834eb8f923a69c55a640f0585869c181

  • SHA1

    18c2bb4fbeb76d1751e6c51e57aed4bad88d4fbf

  • SHA256

    b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3

  • SHA512

    e15b44abec33725eadffc93bd25c6d27ca11ea63e0fe3ad42b8f8e41df3516ff76a29866052886f4671a7e52b838a03186b00ea7cb50d067bb9c27a1badf45fe

  • SSDEEP

    12288:0OTtyY2BVT5MZJZQONfCEDPrhKsiwPgapB14eTiRDiSgUbfW/iNJNgWjV9CDH/f:0LXBx5MKONbPRgapB14aipiS1yi7hTCL

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 10 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 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe
    "C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4296
    • C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe
      "C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\8b3fb584-caa8-4023-8034-663986fe6d2e" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1172
      • C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe
        "C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3640
        • C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe
          "C:\Users\Admin\AppData\Local\Temp\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4528
          • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe
            "C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2008
            • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe
              "C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\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:3752
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:316
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3116
          • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build3.exe
            "C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4264
            • 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:1164
  • 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:1472
    • 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:992

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

    e825419f5d91cbb7dd2c1407c2ae4c08

    SHA1

    daca95b9bffaff1aacb09d09292a41c5e98f0d12

    SHA256

    01a7d3b0ef49c660185536f53cfa2744c7784aef0981df4fd03ae06770b25376

    SHA512

    e4c0b3dea86821de18a10f43dac1263cf917075b620cd4f6ca22331dec27ca0c89b57145e33de8f502e09c1bcfaa400d27cb601f315b1a8b4c851f15064fd514

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\572BF21E454637C9F000BE1AF9B1E1A9

    Filesize

    506B

    MD5

    9fc49e4f04823bb3f12e82c6238a5d87

    SHA1

    d53b2107c32ce2b990b3a1706655c4e09f9c442f

    SHA256

    2cd5af79801563381cf595a2ea16c88f00342e6a4206895e235a0484dc6a8737

    SHA512

    14abf21cf9e36ba87616e61ddf7da7b32d804f36633dab3bd260f742729f5e1a74e7632c1c8d85d2118af38468bdaea5969b0c99720231b4bf1c703f1b0980f9

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

    Filesize

    488B

    MD5

    f3fa9a8722b1ef2e7a8ccf3f6dfba624

    SHA1

    13c88d9563b75445586220c8202e43d6918d045a

    SHA256

    e73ec69400ab63dc2f205e47c01cb9e35fe342fcac9d000e17b7d00621b68aa9

    SHA512

    2f4a2af9a1c4c1eabaaf5693e3354596fd65815e46e69d6ef0fb831ac9cca5b42f083f88b09d8bd9faa49038e9377dc428df9ff9628d8dd61da444bc29fa9031

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\572BF21E454637C9F000BE1AF9B1E1A9

    Filesize

    248B

    MD5

    3d567998bac8597411eb35e55e338810

    SHA1

    cb78fae4fa049e11b1c2b0075898748985b9c808

    SHA256

    9ea1bbe26a5d83776ba0a3503638fa9484bf74d8b3856a723d7cc9a9552e1359

    SHA512

    6457b33a1ecccccc1f014981a1316e73340c1ef8dc8bcb5c10f3769bcd9601272cf2ec5cb9605734668baf7ae9fea6f8e0c0361758bef1c03c70105f262c46bc

  • C:\Users\Admin\AppData\Local\8b3fb584-caa8-4023-8034-663986fe6d2e\b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3.exe

    Filesize

    753KB

    MD5

    834eb8f923a69c55a640f0585869c181

    SHA1

    18c2bb4fbeb76d1751e6c51e57aed4bad88d4fbf

    SHA256

    b9c90093197e33e72de68f9b86c8064ba2a3f00e4519267851ab60520437a2e3

    SHA512

    e15b44abec33725eadffc93bd25c6d27ca11ea63e0fe3ad42b8f8e41df3516ff76a29866052886f4671a7e52b838a03186b00ea7cb50d067bb9c27a1badf45fe

  • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\93e8ea77-acf6-4ede-b541-c3a5e29e6b07\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/316-188-0x0000000000000000-mapping.dmp

  • memory/992-194-0x0000000000000000-mapping.dmp

  • memory/1164-166-0x0000000000000000-mapping.dmp

  • memory/1172-139-0x0000000000000000-mapping.dmp

  • memory/1932-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1932-132-0x0000000000000000-mapping.dmp

  • memory/1932-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1932-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1932-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1932-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2008-160-0x00000000005F8000-0x000000000062C000-memory.dmp

    Filesize

    208KB

  • memory/2008-153-0x0000000000000000-mapping.dmp

  • memory/2008-163-0x0000000002180000-0x00000000021DE000-memory.dmp

    Filesize

    376KB

  • memory/3116-190-0x0000000000000000-mapping.dmp

  • memory/3640-146-0x00000000021A8000-0x000000000223A000-memory.dmp

    Filesize

    584KB

  • memory/3640-141-0x0000000000000000-mapping.dmp

  • memory/3752-159-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3752-157-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3752-156-0x0000000000000000-mapping.dmp

  • memory/3752-189-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3752-167-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3752-161-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/3752-168-0x0000000050AD0000-0x0000000050BC3000-memory.dmp

    Filesize

    972KB

  • memory/4264-162-0x0000000000000000-mapping.dmp

  • memory/4296-136-0x0000000002530000-0x000000000264B000-memory.dmp

    Filesize

    1.1MB

  • memory/4296-135-0x0000000002494000-0x0000000002526000-memory.dmp

    Filesize

    584KB

  • memory/4528-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4528-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4528-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4528-191-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4528-143-0x0000000000000000-mapping.dmp