Analysis

  • max time kernel
    294s
  • max time network
    300s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    09/10/2023, 04:56

General

  • Target

    ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe

  • Size

    796KB

  • MD5

    e1ee6cd708c29267551877bd7fe45ba7

  • SHA1

    b4f631f4d1ff2c0c163fbee809b2ae1d224966ab

  • SHA256

    ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076

  • SHA512

    1d9e985434e79dd735f08f1dac08eb8d9d2703973c788debcac445712a4d004a4dde20c17cf4c9565e53499debdd8ed2a84315e68221105e3be3361593547c22

  • SSDEEP

    24576:TVG6qiw4+eX0Z/ZDm4R9AAA+P+Z21QoZlk5:TVio0fmaPIZ2Cm

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ttwq

  • offline_id

    9qw1wmu1ty4GEiHZdxilHPjCyX6ENKTotjt6MIt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.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-4vhLUot4Kz 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: 0798JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

5.9

Botnet

b4fc4cd2d76417bf461814b9d989fcdb

C2

https://steamcommunity.com/profiles/76561199557479327

https://t.me/grizmons

Attributes
  • profile_id_v2

    b4fc4cd2d76417bf461814b9d989fcdb

  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/117.0.0.0 Safari/537.36 OPR/104.0.0.0

Signatures

  • Detected Djvu ransomware 16 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
  • 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
  • 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).

  • 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\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe
    "C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1816
    • C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe
      "C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:768
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\628a5e87-21b9-43cd-a1d9-4933102f30d4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4544
      • C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe
        "C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1812
        • C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe
          "C:\Users\Admin\AppData\Local\Temp\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2704
          • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe
            "C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:1660
            • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe
              "C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:4180
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:1840
          • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build3.exe
            "C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4844
  • 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"
    1⤵
    • Creates scheduled task(s)
    PID:2884
  • 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:3872
    • 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:748
  • C:\Windows\SysWOW64\timeout.exe
    timeout /t 6
    1⤵
    • Delays execution with timeout.exe
    PID:816

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    651484023a0a0eff81663c1b91002c8c

    SHA1

    9a38c674bb602eb6ed855d61cdddc8d8e5f7baf9

    SHA256

    058f0a03b30cf6acfe9f33f4db7ac91153a094a8804e6886bf476fdc317e7f8d

    SHA512

    d74974ecdcf9a3cb8c55563bc27c273b401b0b6d88a3a5cc963fa1fd927b11e97ccf6641ea060c0890a62c216751f663d0c1c6f5e9d397e1461b8592ce0279ca

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

    Filesize

    1KB

    MD5

    5fb3e1f213d54c6e2a52898d3c6c6a0d

    SHA1

    0d5a066cb76811b1fbec7812145f2fcd6c7ac419

    SHA256

    23b81cc7fb9a2cdf28ccb1ca847e9c2c57086db35e0e9aabce04a7e7ecf4bd76

    SHA512

    8238cbf1c611b48b462dca24ecaf9c9f4658a592cf7fb5bdb8e6d39dd26c628d8f7de53d9017eceeeb2aa8d25cb0a4724f6a50bb98f088be36613526e42c32c7

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

    Filesize

    488B

    MD5

    9a7db5d44fdef7c243b2006e742659bf

    SHA1

    a5b0d46bc6dca7dc107c7d495e2360600ce4a8e5

    SHA256

    a5f32eed08937679439eae8091e95003dc19f78e970ff0c82772ef7ac4cd1c19

    SHA512

    67a86bca9894d642e9d747346cbb040d74b332abf6aab6602f175b272cc0672b59e3f81aa43374d158da65df1d838b7c78aac923fe5bbd268abe16ad3af76ec7

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

    Filesize

    482B

    MD5

    addbd140f23dd28cfa052856a3a1e128

    SHA1

    4b9d50ed643617dc830dc51e638272a2eecc2098

    SHA256

    9b38ad5df782d648eee83fab9cdd7e8a6e1e1a35fa7fa7e832591cfe8a9dd225

    SHA512

    47eacd2310f42a95b45e60b44001b82a98a9e23d8169d302b7bea457f7432dd1aae538303a5fee784ab59f4daa493e0e2163d4d88f42d191eecd745bcab16cd6

  • C:\Users\Admin\AppData\Local\628a5e87-21b9-43cd-a1d9-4933102f30d4\ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076.exe

    Filesize

    796KB

    MD5

    e1ee6cd708c29267551877bd7fe45ba7

    SHA1

    b4f631f4d1ff2c0c163fbee809b2ae1d224966ab

    SHA256

    ae672011146ecf53b7535fc025d43365aa9921f24f26c6afbfd00c06397ab076

    SHA512

    1d9e985434e79dd735f08f1dac08eb8d9d2703973c788debcac445712a4d004a4dde20c17cf4c9565e53499debdd8ed2a84315e68221105e3be3361593547c22

  • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\c6c12071-82b7-4d44-9a7f-355009f59833\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

  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/768-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/768-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/768-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/768-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/768-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1660-63-0x00000000024A0000-0x00000000025A0000-memory.dmp

    Filesize

    1024KB

  • memory/1660-65-0x00000000025B0000-0x0000000002601000-memory.dmp

    Filesize

    324KB

  • memory/1812-20-0x0000000003E10000-0x0000000003EA7000-memory.dmp

    Filesize

    604KB

  • memory/1816-2-0x0000000004050000-0x000000000416B000-memory.dmp

    Filesize

    1.1MB

  • memory/1816-1-0x0000000003F60000-0x0000000004000000-memory.dmp

    Filesize

    640KB

  • memory/2704-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2704-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4180-62-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-66-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-80-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4180-68-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-67-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-117-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-118-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/4180-119-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB