Analysis

  • max time kernel
    146s
  • max time network
    129s
  • platform
    windows10-1703_x64
  • resource
    win10-20230915-en
  • resource tags

    arch:x64arch:x86image:win10-20230915-enlocale:en-usos:windows10-1703-x64system
  • submitted
    08/10/2023, 16:54

General

  • Target

    3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe

  • Size

    786KB

  • MD5

    0f53a380234b0ff0b17f962dc4ea23be

  • SHA1

    a72ac0a564f9034591c7120bdd44152e0855170d

  • SHA256

    3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8

  • SHA512

    df15ff679fa73a187346cb88d0ac751491f490c903999d0328439f916c7ef4dec7771399dcd8e13907e7e98af4d6f1192d65c83877b5a6a38077f643384b6357

  • SSDEEP

    12288:e3kuCgXOhtw8uJ03JINmbiQV22yNm+cK8DkkstNY3YaoZyDURc0xdTp2hlI1kQIK:btgXO3JW0DiMBOzZTKYaOVxdN2/I

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .mlwq

  • offline_id

    FjtJkuhRHnUARRt9GnbbgUTa6ErhJq4ZM668xSt1

  • 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-xN3VuzQl0a 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: 0802JOsie

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\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe
    "C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:5008
    • C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe
      "C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1392
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\457fd66f-fb8a-4b76-8181-65b260d7c563" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1328
      • C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe
        "C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4356
        • C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe
          "C:\Users\Admin\AppData\Local\Temp\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2756
          • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe
            "C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:2260
            • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe
              "C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:224
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4912
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:4132
          • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build3.exe
            "C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:1700
            • 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:1112
  • 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:2116
    • 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:4508

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

    2a61a3d0f5beb7727441b0e010c30d7d

    SHA1

    2dc8b67f13196d3a658d79c9c575bf0a0b75da15

    SHA256

    8f97e861acd3950fde5361476dd989039edff251a00b7de4df84cbacfa629a0d

    SHA512

    d29a461cd7c4746015684c9213a72748d5440191b4b9f07209723e0b8e2b59f11cafe4b87acd123d2987ed1990d3204402f69b7f78f8607782c441efb307a12a

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

    Filesize

    488B

    MD5

    04c5b4a30727357f8da1c09948bd2d98

    SHA1

    6ad7134c0ab27c6f125466d777a91b46b6a6acec

    SHA256

    4e22db16f000561eee97461c48a88ae6cf3d0b909bf1c6c25a42c1afa58d669d

    SHA512

    86fc45808a9584c5decc200576adf6234a2b11621bb72b4941cba172b9634b506fb09fb37a53115101f322957dd6616dcb2c7014a4843f5e9b2a27d97953a64c

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

    Filesize

    482B

    MD5

    17053a8903d76bd54c495fa88fa61c49

    SHA1

    6ed4d652fdb30dbccb7f84967e48a15c7f04a7b4

    SHA256

    8ddfd7f37cf9d5bec3db3f6356e8e2c698996d152106117d949eed02894e5594

    SHA512

    9cd1e54c2bdb474b5950a516ab55e1307e98e7b6211331a7fd4fc685243acdc0da749b72beabf4bc3a08c26a5cebb53301332b754240ef4b2dbbbb2ac3280d56

  • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\1a9d8893-01ba-493b-b0e2-160a9f753f8d\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\457fd66f-fb8a-4b76-8181-65b260d7c563\3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8.exe

    Filesize

    786KB

    MD5

    0f53a380234b0ff0b17f962dc4ea23be

    SHA1

    a72ac0a564f9034591c7120bdd44152e0855170d

    SHA256

    3cd20ea6315f61d14772c2dc8a4774750f95ebf6511989316e5f5bce906713f8

    SHA512

    df15ff679fa73a187346cb88d0ac751491f490c903999d0328439f916c7ef4dec7771399dcd8e13907e7e98af4d6f1192d65c83877b5a6a38077f643384b6357

  • 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/224-73-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/224-110-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-62-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-111-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-113-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-61-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-60-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/224-56-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/1392-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1392-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1392-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1392-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1392-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2260-59-0x00000000025C0000-0x0000000002611000-memory.dmp

    Filesize

    324KB

  • memory/2260-57-0x0000000002650000-0x0000000002750000-memory.dmp

    Filesize

    1024KB

  • memory/2260-115-0x00000000025C0000-0x0000000002611000-memory.dmp

    Filesize

    324KB

  • memory/2756-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-40-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2756-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4356-20-0x0000000003F40000-0x0000000003FE0000-memory.dmp

    Filesize

    640KB

  • memory/5008-1-0x0000000003F20000-0x0000000003FBC000-memory.dmp

    Filesize

    624KB

  • memory/5008-2-0x0000000004000000-0x000000000411B000-memory.dmp

    Filesize

    1.1MB