Analysis

  • max time kernel
    75s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-02-2023 12:40

General

  • Target

    edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe

  • Size

    702KB

  • MD5

    2bca619076b99fbe431d34862f386b7b

  • SHA1

    cd2608455b8d52be8c193921d4c47bf2485f69d5

  • SHA256

    edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8

  • SHA512

    c57c15954735439a9e9c172ae9015b331c47050966afa8cf54db255eeec3eb500dfa1a5f32bc11bdcbea148c724d53239486b057747579d1546e37484d69e4e4

  • SSDEEP

    12288:CmfGGnJWMtdTQtYDWleDL4Rwnbkwzgr5q2sZuC30DkbskgC3u+7Seg584Mvdf:CmfRwsm6DlL4RwndMVq3ykIMWdH

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe
    "C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5060
    • C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe
      "C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3356
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\4ac7c8f3-073c-44c9-89c5-3fdb544fb2a8" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2080
      • C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe
        "C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1176
        • C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe
          "C:\Users\Admin\AppData\Local\Temp\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4704
          • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe
            "C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4344
            • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe
              "C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\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:1004
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:3348
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4808
          • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build3.exe
            "C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4908
            • 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:3896
  • 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:3528
    • 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:5028

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

    f388e0782c95aa29ee74f9b1606cfb62

    SHA1

    f574a2da15b319098923d5f92d78af03b57a3547

    SHA256

    b5b1f83083347251b991ab211be516c0f06db94fb9993571458ce2eff8a2e8a4

    SHA512

    0fe138f56e098a54564f002a1cd95ed2227af25e460ad33f9128b041693d19d2b3ccd156b82476bfb88ead105e635b123c55bec7f8b54ce44c7a1bcf27a032ce

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

    Filesize

    482B

    MD5

    396da766585ebd633fa86975b07b457c

    SHA1

    b0f487dda0cc4f1f267eab87e26f64472ef1c615

    SHA256

    bd4b036e44909564411a4eb6cae639e5658393d0486d2a5f38587d085198d436

    SHA512

    212e19e03b9371e2cbad33dbde3a38da900a4f6026229576f70ea41647a1cbb0527468e7a42b4a31be6dd23f0339eacff99b43d9bc8ef6aa3e37c92bb0cc4157

  • C:\Users\Admin\AppData\Local\4ac7c8f3-073c-44c9-89c5-3fdb544fb2a8\edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8.exe

    Filesize

    702KB

    MD5

    2bca619076b99fbe431d34862f386b7b

    SHA1

    cd2608455b8d52be8c193921d4c47bf2485f69d5

    SHA256

    edb8596fa4df3fc49ebd6b4883fcc2ef7a235b9f9ff6b3eac56068e404469fd8

    SHA512

    c57c15954735439a9e9c172ae9015b331c47050966afa8cf54db255eeec3eb500dfa1a5f32bc11bdcbea148c724d53239486b057747579d1546e37484d69e4e4

  • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build2.exe

    Filesize

    325KB

    MD5

    4c9fdfbf316f37dbcc7314e5641f9a9a

    SHA1

    7fa01df0e5420f9e5b69486550460e839fd0f3a3

    SHA256

    e661e53f429cd22e30ca6fb368f3e011e76264892f4e718c75cb3636f4f2e611

    SHA512

    b22c60d27ed5457677645a2b8669cd1958cc18a021e19dcf1d1a3a88ed63cd4eb749b1fe8798f651dcc5595d019ceb3cb38eae7a07ab73098eee502dbee5c32b

  • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\7e6b4f4d-7c89-455a-a086-3a03eaf9c7bf\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/1004-163-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1004-161-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1004-190-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1004-168-0x0000000050AD0000-0x0000000050BC3000-memory.dmp

    Filesize

    972KB

  • memory/1004-164-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1004-167-0x0000000000400000-0x0000000000472000-memory.dmp

    Filesize

    456KB

  • memory/1176-146-0x0000000002277000-0x0000000002308000-memory.dmp

    Filesize

    580KB

  • memory/3356-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3356-134-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3356-136-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3356-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3356-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4344-166-0x00000000007E0000-0x000000000083E000-memory.dmp

    Filesize

    376KB

  • memory/4344-165-0x00000000008C8000-0x00000000008FC000-memory.dmp

    Filesize

    208KB

  • memory/4704-152-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4704-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4704-188-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4704-145-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-135-0x0000000002320000-0x00000000023B1000-memory.dmp

    Filesize

    580KB

  • memory/5060-137-0x0000000002460000-0x000000000257B000-memory.dmp

    Filesize

    1.1MB