Analysis

  • max time kernel
    65s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-12-2022 10:27

General

  • Target

    894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe

  • Size

    778KB

  • MD5

    0591ce7264414813b1128e2f19f8c701

  • SHA1

    d3af240c112ca5f42811e3dfa773d2eb0593fb8c

  • SHA256

    894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471

  • SHA512

    c3d6bd85909bcfafd68b58f364b3f48b359797acd275ad3e331719d2c59d6612f31f227fdce3a85c448b243aba6a04a2771267d37893b7fc564894628fcb27cc

  • SSDEEP

    24576:c+cEDCkwQZ+VkO1nZv9IktN4XNtd0WSey:cRK4QZ8konZSktSXT

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .manw

  • offline_id

    M6quF9d1g2LNWnBiQpTSgbW26JwEOrFwFfT1xGt1

  • payload_url

    http://uaery.top/dl/build2.exe

    http://abibiall.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-67n37yZLXk 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: support@fishmail.top Reserve e-mail address to contact us: datarestorehelp@airmail.cc Your personal ID: 0614JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

56.1

Botnet

517

C2

https://t.me/dishasta

https://steamcommunity.com/profiles/76561199441933804

Attributes
  • profile_id

    517

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
  • Executes dropped EXE 4 IoCs
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe
    "C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe
      "C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1260
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b0eba99d-4374-4e61-9786-80613fa2a493" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3660
      • C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe
        "C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4808
        • C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe
          "C:\Users\Admin\AppData\Local\Temp\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:4796
          • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe
            "C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:4088
            • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe
              "C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe"
              6⤵
              • Executes dropped EXE
              • Checks computer location settings
              • Loads dropped DLL
              • Checks processor information in registry
              • Suspicious behavior: EnumeratesProcesses
              • Suspicious use of WriteProcessMemory
              PID:3752
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4212
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:3336
          • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build3.exe
            "C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2388
            • 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:4240
  • C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    C:\Users\Admin\AppData\Roaming\Microsoft\Network\mstsca.exe
    1⤵
    • Executes dropped EXE
    PID:1608
    • 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:3208

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

File Permissions Modification

1
T1222

Modify Registry

1
T1112

Credential Access

Credentials in Files

3
T1081

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll
    Filesize

    133KB

    MD5

    8f73c08a9660691143661bf7332c3c27

    SHA1

    37fa65dd737c50fda710fdbde89e51374d0c204a

    SHA256

    3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

    SHA512

    0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

  • C:\ProgramData\nss3.dll
    Filesize

    1.2MB

    MD5

    bfac4e3c5908856ba17d41edcd455a51

    SHA1

    8eec7e888767aa9e4cca8ff246eb2aacb9170428

    SHA256

    e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

    SHA512

    2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

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

    2KB

    MD5

    a3ba06b0a900ef1f790d2d1faa188e08

    SHA1

    51f7daf4a2bd9c1a9d52bbb62989c7208b71cd98

    SHA256

    30d532e2ce3f53e0865186393000a9a8af1318ab251ebabb168b0bc84bebe4b9

    SHA512

    9ad7d398badf9c48caa8473f4e120a82eba1c37f4885fe19ec34d173821456653a14185bb628338555155035fd77c782525b32385036317140eadaf4918b8e5b

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

    1KB

    MD5

    59e98119dbb289e1c12576b7f5f58831

    SHA1

    d8e74af395a1976a9232d626215333931a3f23ce

    SHA256

    fa68e1f0d87d4ed9a1891e1760cc6c9c6c015547a982e8fb07e58f4d14e38c8f

    SHA512

    672d7926f26f36a8d2c3c3871d8c37249b2d376b2cad82ad01280d9680d0d18bdf65626db48120b7bca1a59ccc49c36b84a7e454235634376e14de03ce11b39c

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

    488B

    MD5

    0b6c6c050dc3240671f4725c3e9796dd

    SHA1

    9fd34b8b6964c9637251f26235ecb31d1561dc26

    SHA256

    ddc2193417a4e925c2ba2efd4012d0ae98521236a314801f1667c1a1fc30f8e9

    SHA512

    7daeb5769008203d71f20e1d4546303fefbb89ab30ad2fc25ee9335533f3fdd24bed357213f5ccd34306a1b21d9ffe556d530b22e8c304cfb454ffd89943ea16

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

    482B

    MD5

    d4ced75b522794173ff6cf4c98b8cc30

    SHA1

    565f723c7b856fac71f2e2ee246b0e9cf1e2f041

    SHA256

    5f4645b6b1c337071c5ef740126966aeaf680df24eeb1290a8177465f3b9076e

    SHA512

    59ad82b1d8e4ba6b7bc75cbbb9156cedd207b4ede1b057bc3b0468fb5d72bdaba23cab2d768ec13bb494fdc7c64f73dbe1165e15509d2d9b41ca3cf39414f99d

  • C:\Users\Admin\AppData\Local\b0eba99d-4374-4e61-9786-80613fa2a493\894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471.exe
    Filesize

    778KB

    MD5

    0591ce7264414813b1128e2f19f8c701

    SHA1

    d3af240c112ca5f42811e3dfa773d2eb0593fb8c

    SHA256

    894b3cfead02de91f16b956502cbf70514c27533863dac5f49e57186d587f471

    SHA512

    c3d6bd85909bcfafd68b58f364b3f48b359797acd275ad3e331719d2c59d6612f31f227fdce3a85c448b243aba6a04a2771267d37893b7fc564894628fcb27cc

  • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe
    Filesize

    471KB

    MD5

    f56c8317f668ed043779b95bef8c849e

    SHA1

    894425839f074075f1179023547a6496ea6f2f70

    SHA256

    11b46637f618cfe5000dea3ebb0d2e0bc5bde585815b670a43f1e9259e4f9941

    SHA512

    a593e03621e5620aee91f998d27474e06cf3ea1c04b63e9c693054af5c205b75ece3f3b55b766c11c7c69767eaaacd7ec27de3b69decc066f0a301fabf759287

  • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe
    Filesize

    471KB

    MD5

    f56c8317f668ed043779b95bef8c849e

    SHA1

    894425839f074075f1179023547a6496ea6f2f70

    SHA256

    11b46637f618cfe5000dea3ebb0d2e0bc5bde585815b670a43f1e9259e4f9941

    SHA512

    a593e03621e5620aee91f998d27474e06cf3ea1c04b63e9c693054af5c205b75ece3f3b55b766c11c7c69767eaaacd7ec27de3b69decc066f0a301fabf759287

  • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build2.exe
    Filesize

    471KB

    MD5

    f56c8317f668ed043779b95bef8c849e

    SHA1

    894425839f074075f1179023547a6496ea6f2f70

    SHA256

    11b46637f618cfe5000dea3ebb0d2e0bc5bde585815b670a43f1e9259e4f9941

    SHA512

    a593e03621e5620aee91f998d27474e06cf3ea1c04b63e9c693054af5c205b75ece3f3b55b766c11c7c69767eaaacd7ec27de3b69decc066f0a301fabf759287

  • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\build3.exe
    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\cc13e966-885f-4453-90e0-5249398981fa\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

  • memory/1260-142-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1260-132-0x0000000000000000-mapping.dmp
  • memory/1260-136-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1260-138-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1260-133-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/1260-134-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2388-156-0x0000000000000000-mapping.dmp
  • memory/3336-192-0x0000000000000000-mapping.dmp
  • memory/3464-135-0x00000000022CF000-0x0000000002360000-memory.dmp
    Filesize

    580KB

  • memory/3464-137-0x0000000002370000-0x000000000248B000-memory.dmp
    Filesize

    1.1MB

  • memory/3660-139-0x0000000000000000-mapping.dmp
  • memory/3752-164-0x0000000000400000-0x000000000045F000-memory.dmp
    Filesize

    380KB

  • memory/3752-165-0x0000000000400000-0x000000000045F000-memory.dmp
    Filesize

    380KB

  • memory/3752-191-0x0000000000400000-0x000000000045F000-memory.dmp
    Filesize

    380KB

  • memory/3752-160-0x0000000000000000-mapping.dmp
  • memory/3752-169-0x0000000060900000-0x0000000060992000-memory.dmp
    Filesize

    584KB

  • memory/3752-161-0x0000000000400000-0x000000000045F000-memory.dmp
    Filesize

    380KB

  • memory/3752-167-0x0000000000400000-0x000000000045F000-memory.dmp
    Filesize

    380KB

  • memory/4088-166-0x00000000005A0000-0x00000000005EB000-memory.dmp
    Filesize

    300KB

  • memory/4088-163-0x00000000004B2000-0x00000000004DE000-memory.dmp
    Filesize

    176KB

  • memory/4088-153-0x0000000000000000-mapping.dmp
  • memory/4212-190-0x0000000000000000-mapping.dmp
  • memory/4240-159-0x0000000000000000-mapping.dmp
  • memory/4796-145-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4796-168-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4796-152-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4796-147-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4796-143-0x0000000000000000-mapping.dmp
  • memory/4808-146-0x00000000020EA000-0x000000000217B000-memory.dmp
    Filesize

    580KB

  • memory/4808-141-0x0000000000000000-mapping.dmp