Analysis

  • max time kernel
    66s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/01/2023, 10:11

General

  • Target

    ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe

  • Size

    811KB

  • MD5

    d13c8f95955973410a07ba397d6a09d7

  • SHA1

    cd2457e2d32449e0fa823c1b86d9e56df3ff448f

  • SHA256

    ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367

  • SHA512

    403c147a0c394b6702e53e53d4b122be820276d5366b5e1b205eaf3457d72b4bbe9a2b70ec898eba8349e0152b461173e25491cad0b2784b4312205ceaa0b002

  • SSDEEP

    12288:8uv35KPZ0+51JSDDeEXfmdfHQlZGyH9vruM7MTNxZSUnuRMbd9o:8uJKPZ0+5q3df2OwyH7MzkUbd9

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bpsm

  • offline_id

    pu5TgkFNAS5fWQ2rCzdamsmMrE5wSlTupdTI0pt1

  • payload_url

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

    http://spaceris.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-rmxjMZAZBJ 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: 0626JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

1.8

Botnet

19

C2

https://t.me/year2023start

https://steamcommunity.com/profiles/76561199467421923

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
  • 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 53 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe
    "C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:632
    • C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe
      "C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4292
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\db0ecd19-a5bd-40c6-9f97-64f4a02c4192" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4808
      • C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe
        "C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe
          "C:\Users\Admin\AppData\Local\Temp\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:1320
          • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe
            "C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of SetThreadContext
            • Suspicious use of WriteProcessMemory
            PID:220
            • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe
              "C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\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:4932
              • C:\Windows\SysWOW64\cmd.exe
                "C:\Windows\System32\cmd.exe" /c timeout /t 6 & del /f /q "C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe" & exit
                7⤵
                • Suspicious use of WriteProcessMemory
                PID:4380
                • C:\Windows\SysWOW64\timeout.exe
                  timeout /t 6
                  8⤵
                  • Delays execution with timeout.exe
                  PID:5064
          • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build3.exe
            "C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build3.exe"
            5⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:4848
            • 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:4796
  • 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:4632
    • 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:3976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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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

    411cd537dcecbf901759b8e6c1bdb076

    SHA1

    655df9870867a1760ad1a2c967b330c61767437a

    SHA256

    aa9e441c6cf813efd9ba76fe4ae52d884a5c7d222ed221903c42f09bc14eb7db

    SHA512

    ea780f875c86f8694f67d236a0af066b952862356edb681375e6c387103a91ce085345359f8fe83dd630d310ee6b7637512e5868951c4c257daa411ab9c03e71

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

    Filesize

    1KB

    MD5

    7c56401cb6bd1ae402e06f0fe35f81c4

    SHA1

    b82bbb9fa39266796cafcd308ef4300fc92e3399

    SHA256

    0c58c7bc18d38a3096da6f3575f1c6f8d79b69382d8e89bb5fca917d3cdb7f65

    SHA512

    2ea607c2dc04c8ef34ecb4c4bd297e0f0882b179303565863d1745172322133b78186fa04334e82c135e25fd717719ceec917f49682a4eac37034ea87bb2b6f3

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

    Filesize

    488B

    MD5

    19d23a2ab62b98067781a93e3bea98a2

    SHA1

    5d3cf7aaa2be99f439fb8d85cb1ee37648d76d8a

    SHA256

    cd9be337e2b721f548f34fd9caa781535b1a4940719333e02406c6ad27ffa4e4

    SHA512

    1b4c8276243932c8c59c35ec0e697e6e052c837e7e81119cced653a4a451474e472b89343dc52fd65cf30a0ce6d1a5f0e97dd6021e1f00580216607ab5735ed6

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

    Filesize

    482B

    MD5

    e0f2922a560c5362be6a735da3673d95

    SHA1

    8a1f6aeffd5c53f361e4bc199a3c583153ff76f6

    SHA256

    6ad1ba72d333194bedf6e6972171c53e5b75d5482a588d29232a5095e91b010e

    SHA512

    2f27873140a1b08f4bc38991497037030640406e10a6e210b46824863945018f0327301a6dc540e0a567d70141a1105b729d1aa05da7924192f12549e0bf1188

  • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe

    Filesize

    429KB

    MD5

    8c14bb1505244971374a88f37a4ec22a

    SHA1

    cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

    SHA256

    f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

    SHA512

    5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

  • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe

    Filesize

    429KB

    MD5

    8c14bb1505244971374a88f37a4ec22a

    SHA1

    cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

    SHA256

    f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

    SHA512

    5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

  • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build2.exe

    Filesize

    429KB

    MD5

    8c14bb1505244971374a88f37a4ec22a

    SHA1

    cebd478fd7ca3956c983fb3e33e2cbb7c54fa4d0

    SHA256

    f333289bf29805ee697908ecb974aeb81206b471252ec2e51f382d53ac35d962

    SHA512

    5e08686f2cbc783716442004d39ee11a4fabec7aaa92f33f758df7861ed0730c211551ecb85dd9dc93c2b83983fc4df08bcfeeb38c9e51bd3dcd138b10cf103e

  • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\42318c47-d25e-43b3-8366-04f3b37a324c\build3.exe

    Filesize

    9KB

    MD5

    9ead10c08e72ae41921191f8db39bc16

    SHA1

    abe3bce01cd34afc88e2c838173f8c2bd0090ae1

    SHA256

    8d7f0e6b6877bdfb9f4531afafd0451f7d17f0ac24e2f2427e9b4ecc5452b9f0

    SHA512

    aa35dbc59a3589df2763e76a495ce5a9e62196628b4c1d098add38bd7f27c49edf93a66fb8507fb746e37ee32932da2460e440f241abe1a5a279abcc1e5ffe4a

  • C:\Users\Admin\AppData\Local\db0ecd19-a5bd-40c6-9f97-64f4a02c4192\ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367.exe

    Filesize

    811KB

    MD5

    d13c8f95955973410a07ba397d6a09d7

    SHA1

    cd2457e2d32449e0fa823c1b86d9e56df3ff448f

    SHA256

    ea2d30589c89954e1c7101fc48f6838dbc4313926dd6d61158029b2eb463c367

    SHA512

    403c147a0c394b6702e53e53d4b122be820276d5366b5e1b205eaf3457d72b4bbe9a2b70ec898eba8349e0152b461173e25491cad0b2784b4312205ceaa0b002

  • 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/220-165-0x0000000000858000-0x0000000000886000-memory.dmp

    Filesize

    184KB

  • memory/220-166-0x00000000005C0000-0x000000000060C000-memory.dmp

    Filesize

    304KB

  • memory/632-136-0x0000000004AE0000-0x0000000004BFB000-memory.dmp

    Filesize

    1.1MB

  • memory/632-134-0x0000000003181000-0x0000000003213000-memory.dmp

    Filesize

    584KB

  • memory/1320-146-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1320-148-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1320-168-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1320-147-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1380-145-0x0000000002E65000-0x0000000002EF7000-memory.dmp

    Filesize

    584KB

  • memory/4292-137-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4292-135-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4292-142-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4292-138-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4292-133-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4932-169-0x0000000050AB0000-0x0000000050B42000-memory.dmp

    Filesize

    584KB

  • memory/4932-190-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/4932-167-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/4932-192-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/4932-164-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/4932-163-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB

  • memory/4932-161-0x0000000000400000-0x0000000000460000-memory.dmp

    Filesize

    384KB