Analysis

  • max time kernel
    77s
  • max time network
    139s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    14-02-2023 07:30

General

  • Target

    3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe

  • Size

    679KB

  • MD5

    aead0cce5cb661d6e0bb89bb1ce79d24

  • SHA1

    281dcfbf66b371b0c722edd231be155d18fa6007

  • SHA256

    3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940

  • SHA512

    ef89d2900908cb17ae93d9155fc1dc3237c906fca83ff445be7f1f778e0f6a66d6939537c8d1c2e0ec271f728ceb597f48b90fa8ced084f2b1010764069cff63

  • SSDEEP

    12288:1abQgyvfOowTM8S/jlU/NDGiwEtChoo9QjyHMp1G8gUonwaW:hfOZMT/jlUEYtcoom+sp1G8B

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 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). Likely ransomware behaviour.

  • Program crash 1 IoCs
  • 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\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe
    "C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4240
    • C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe
      "C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2276
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\aca031dd-608c-43c9-be20-3419237fc6c3" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2704
      • C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe
        "C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4236
        • C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe
          "C:\Users\Admin\AppData\Local\Temp\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4784
          • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe
            "C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:3164
            • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe
              "C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              PID:1740
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 1740 -s 1364
                7⤵
                • Program crash
                PID:1884
          • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build3.exe
            "C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:316
            • 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:216
  • 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:3388
    • 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:4764
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1740 -ip 1740
    1⤵
      PID:4832

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    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

      f298e6ae8164740e277bcb589c8b7696

      SHA1

      efb68d0759def8abc263b0173930315ae417eff3

      SHA256

      cf4e54a8f46a697c97fedf75724800849d115923d6b9ab6caee58153efcb5e26

      SHA512

      cb2bffd62fe7932eb3915457a1b9bafda435965a1b79eba7cf6ab00a0734a4f4496cdc5eb5860bb70009004745f783de359ae7d480d4b5fc96a356e7023aa2d6

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

      Filesize

      1KB

      MD5

      993e8b8577c97c7e05f2f14fc91b6822

      SHA1

      115472cc6481473f1c16844a855938390134bb2e

      SHA256

      0455176415d825ae6af414e9e4ea77bb8e81b521996bed8f14c3b72c24a953d4

      SHA512

      df59164579d3ee35fa3a89db6f5f3c7754069fd6d2d4014d87a9be9dbbc960ee52d0b9701174dada349491a9d3ebfb025ba284fee5da9998da5ca224d9f249cc

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

      Filesize

      488B

      MD5

      45d5e5f02dc0f3e6ba4e6fa9a0df08c2

      SHA1

      e90db43ae5da7a6a0f4aaee0145148c77cc4681b

      SHA256

      833cdefa03fda980b5bc11039f9e62c45f0fb1883280d19a94dae9c80f20c028

      SHA512

      49c2723c806bc52548a3d2939115dd32f5ecc21e1a60a14ad7971c1b1f9b2e3a710515532e9bcccf5b857b69a6153878e365998a5064eb7b8f262d5c695c2648

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

      Filesize

      482B

      MD5

      d4e7ec13c6784f24bc3769ae5f6a498c

      SHA1

      51b19be6597e26091a121008aafd0207c0b3db2e

      SHA256

      5e3a2c51b66900fe2a4512e54a53847210952657e69b92befdb8ccb47e45f599

      SHA512

      076dad4c67fbc387d2901b4c81d826410f88cb1e1337bef2ffb3e15d850eb14be96bb724dc21b02c966401dea571d25de3fd0290566f17534f34a73fd57cd3f2

    • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe

      Filesize

      325KB

      MD5

      4c9fdfbf316f37dbcc7314e5641f9a9a

      SHA1

      7fa01df0e5420f9e5b69486550460e839fd0f3a3

      SHA256

      e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

      SHA512

      b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

    • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe

      Filesize

      325KB

      MD5

      4c9fdfbf316f37dbcc7314e5641f9a9a

      SHA1

      7fa01df0e5420f9e5b69486550460e839fd0f3a3

      SHA256

      e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

      SHA512

      b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

    • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build2.exe

      Filesize

      325KB

      MD5

      4c9fdfbf316f37dbcc7314e5641f9a9a

      SHA1

      7fa01df0e5420f9e5b69486550460e839fd0f3a3

      SHA256

      e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

      SHA512

      b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

    • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\3ed9eaf3-c2c4-4e0d-9d29-baaa00b9f6ac\build3.exe

      Filesize

      9KB

      MD5

      9ead10c08e72ae41921191f8db39bc16

      SHA1

      abe3bce01cd34afc88e2c838173f8c2bd0090ae1

      SHA256

      8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

      SHA512

      aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

    • C:\Users\Admin\AppData\Local\aca031dd-608c-43c9-be20-3419237fc6c3\3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940.exe

      Filesize

      679KB

      MD5

      aead0cce5cb661d6e0bb89bb1ce79d24

      SHA1

      281dcfbf66b371b0c722edd231be155d18fa6007

      SHA256

      3eb22f742370d75ba4a4e75730b0b0a63cc5a7c075a8f6a4746640c45b1bf940

      SHA512

      ef89d2900908cb17ae93d9155fc1dc3237c906fca83ff445be7f1f778e0f6a66d6939537c8d1c2e0ec271f728ceb597f48b90fa8ced084f2b1010764069cff63

    • 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/1740-169-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/1740-193-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/1740-173-0x0000000050750000-0x0000000050843000-memory.dmp

      Filesize

      972KB

    • memory/1740-167-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/1740-163-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/1740-164-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/1740-161-0x0000000000400000-0x0000000000472000-memory.dmp

      Filesize

      456KB

    • memory/2276-134-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2276-137-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2276-138-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2276-133-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2276-142-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3164-166-0x00000000021C0000-0x000000000221E000-memory.dmp

      Filesize

      376KB

    • memory/3164-165-0x0000000000839000-0x000000000086D000-memory.dmp

      Filesize

      208KB

    • memory/4236-146-0x00000000024A0000-0x0000000002531000-memory.dmp

      Filesize

      580KB

    • memory/4240-136-0x00000000025E0000-0x00000000026FB000-memory.dmp

      Filesize

      1.1MB

    • memory/4240-135-0x00000000024CD000-0x000000000255E000-memory.dmp

      Filesize

      580KB

    • memory/4784-152-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4784-168-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4784-147-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/4784-145-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB