Analysis

  • max time kernel
    295s
  • max time network
    242s
  • 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 04:50

General

  • Target

    65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe

  • Size

    782KB

  • MD5

    7b3bb22f4c17a2030a8fa3336632fd68

  • SHA1

    0376aae1ebe5d6483b71b00bc329961fb36dbec8

  • SHA256

    65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0

  • SHA512

    24fa68563b59004cff121e01cd6276e86620b166b27dd06f71337c41d023728f5f7fb361432410a6ce5aab3b9f0140749cb7eb28d0505605018614d9b201a19a

  • SSDEEP

    24576:GYnJaAnBucTMsrUeOCKU8c5gluTRW8S7:GmBBxTMsrUeec/RJS

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\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe
    "C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:32
    • C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe
      "C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\be10a6ec-7ba3-44d5-8573-a56e45bcf04a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4728
      • C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe
        "C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:864
        • C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe
          "C:\Users\Admin\AppData\Local\Temp\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4348
          • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe
            "C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:60
            • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe
              "C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe"
              6⤵
              • Executes dropped EXE
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3416
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:2764
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:1656
          • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build3.exe
            "C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build3.exe"
            5⤵
            • 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"
              6⤵
              • Creates scheduled task(s)
              PID:2696
  • 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:4760
    • 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

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

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

    c444c7d592b7bb8f75c4c4c0be970389

    SHA1

    ef2c227c7d0460797255f5af676f218ac912bf74

    SHA256

    ba4276f3c22ccfca94c1032313024d526e1b727be947dc390ba5a108ab9ac1ac

    SHA512

    742ca211b4f890371d65fd92a6ef4d8d3fdfee868a9430f4184b4f7978db31ddf7f1279286495b20f2f276873e182229cfed23377bb221e98d8e2b907ec481b1

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

    Filesize

    482B

    MD5

    5b659a89b46f05053ddf75a4321da4f6

    SHA1

    3b9deb6993ad84ed9ff878940a1bcbfa4be228f7

    SHA256

    db93bbbad086864d2b6fc88b14bab31d4b4b920fe7b30192fa91b7e3217764d8

    SHA512

    34d5339ea9a994891676e187fac58c86ac8ac66197d2a26aa2b251854b49ec81a8d73ee3e7ca1b701088f8cfc829c985089081428f5e802de7dcee0e8a393aa7

  • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build2.exe

    Filesize

    338KB

    MD5

    4af351cad48ae0a8310396db36088d01

    SHA1

    587e5cce7a25de94acd440925981f27c4b052113

    SHA256

    e81cf314b9336ae58e0ed051467245f4eea056c30bd54429d740aad521813092

    SHA512

    73b347494835d2fbb378f87c4d1f81b71801e14d598377e288af08f37415f85dc212d71128e85111131938c62f49c6eb3fb7c74ba9f6927025cbbd5da799a982

  • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\b76bfd11-8d2e-401d-8c1a-31558276f1d9\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\be10a6ec-7ba3-44d5-8573-a56e45bcf04a\65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0.exe

    Filesize

    782KB

    MD5

    7b3bb22f4c17a2030a8fa3336632fd68

    SHA1

    0376aae1ebe5d6483b71b00bc329961fb36dbec8

    SHA256

    65bc0fe782ba242e422f4f1177068316e1d35603483f04281eda5b65234475d0

    SHA512

    24fa68563b59004cff121e01cd6276e86620b166b27dd06f71337c41d023728f5f7fb361432410a6ce5aab3b9f0140749cb7eb28d0505605018614d9b201a19a

  • 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/32-2-0x0000000004040000-0x000000000415B000-memory.dmp

    Filesize

    1.1MB

  • memory/32-1-0x0000000003F40000-0x0000000003FD8000-memory.dmp

    Filesize

    608KB

  • memory/60-70-0x0000000002500000-0x0000000002551000-memory.dmp

    Filesize

    324KB

  • memory/60-68-0x00000000025B0000-0x00000000026B0000-memory.dmp

    Filesize

    1024KB

  • memory/864-20-0x0000000003E20000-0x0000000003EBD000-memory.dmp

    Filesize

    628KB

  • memory/3416-67-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-84-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/3416-121-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-72-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-122-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-123-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-73-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3416-71-0x0000000000400000-0x0000000000465000-memory.dmp

    Filesize

    404KB

  • memory/3780-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3780-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3780-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3780-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3780-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-52-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-46-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4348-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB