Analysis

  • max time kernel
    64s
  • max time network
    151s
  • 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, 11:01

General

  • Target

    d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe

  • Size

    752KB

  • MD5

    85bc7a40f050e2dd6869097e3db18b76

  • SHA1

    55d82c980a8cea679c412a00b80eb56e06b1bbd7

  • SHA256

    d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357

  • SHA512

    095c95dce2e4261887785957e30beabf75de363f449239ca034b2da8349f2ee0facb5ba1326eaae6f3326cdb1f37ffd8fed064eb0220fd49a701f1d6facb64e0

  • SSDEEP

    12288:ARHsvHLNCLNPFwsULmql+PbT1ZZIFxPLN9dtLssc8hKgF0F9n+E:A1s/LNSkxMPP1fIrLjdtLE8hKgi9+

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .hhmm

  • 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: 0646JOsie

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
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of WriteProcessMemory 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe
    "C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1480
    • C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe
      "C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4380
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\3c9445db-918b-48fb-b68d-8764024e8336" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4456
      • C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe
        "C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4208
        • C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe
          "C:\Users\Admin\AppData\Local\Temp\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4036
          • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe
            "C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2588
            • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe
              "C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\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:4488
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3992
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1236
          • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build3.exe
            "C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:3884
            • 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:1476
  • 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:1344
    • 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:3492

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\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

    7aea92ddd1ce62f1a92832cecbd86598

    SHA1

    60233555cf2d9cfe9717ea42520bb5e3264b5994

    SHA256

    277c002f867a40b9b838966957bef139a54b70ecdc74daa80175babe7bbe55f5

    SHA512

    374266b18556442f175b8651a4a18398dcc739cadbaafaf68e1e7102fad5c52648564541547c5f9ba016ca650833d01f1329d51f03afb3f4b871e73bffdf729d

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

    Filesize

    482B

    MD5

    540bdaeca58165d84be56b4222bf7bb3

    SHA1

    3314137f9fe2d9e796c16a18701b737dc9392660

    SHA256

    b85348f35cb45d42614d0c5e252fa83a7028649336e9ce08d54b70519480291e

    SHA512

    b05a9f1359312d95e223e8111434dffdd4a019a13cb6bdcf7087dfb69ba7aff5a8ede57aec0674d1f6ce899f9910dda6a92cd8be7ccac5bf23b2e457ae39857b

  • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\3a3e12ed-a0ad-48f1-acd2-622aa4c4c776\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\3c9445db-918b-48fb-b68d-8764024e8336\d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357.exe

    Filesize

    752KB

    MD5

    85bc7a40f050e2dd6869097e3db18b76

    SHA1

    55d82c980a8cea679c412a00b80eb56e06b1bbd7

    SHA256

    d6d9d29894a812305179e536f65c1d835c3be7bb04bdf54d320e17d058596357

    SHA512

    095c95dce2e4261887785957e30beabf75de363f449239ca034b2da8349f2ee0facb5ba1326eaae6f3326cdb1f37ffd8fed064eb0220fd49a701f1d6facb64e0

  • 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/1480-136-0x0000000002520000-0x000000000263B000-memory.dmp

    Filesize

    1.1MB

  • memory/1480-135-0x000000000237C000-0x000000000240D000-memory.dmp

    Filesize

    580KB

  • memory/2588-165-0x00000000006A8000-0x00000000006DC000-memory.dmp

    Filesize

    208KB

  • memory/2588-166-0x0000000000610000-0x000000000066E000-memory.dmp

    Filesize

    376KB

  • memory/4036-188-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4036-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4036-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4036-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4208-146-0x0000000002267000-0x00000000022F8000-memory.dmp

    Filesize

    580KB

  • memory/4380-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4380-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4380-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4380-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4380-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4488-168-0x0000000050BC0000-0x0000000050CB3000-memory.dmp

    Filesize

    972KB

  • memory/4488-167-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4488-190-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4488-163-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4488-164-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/4488-160-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB