Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22-07-2021 12:14

General

  • Target

    BlueLinkrIRC.exe

  • Size

    3.8MB

  • MD5

    680827bf74af49d305f7246831f27048

  • SHA1

    d9e5879ea10b833c30eedd514a171cc4e9601664

  • SHA256

    3a106d498bf436f3a93ddda054549fdc0f4075b023765c1f9be9be4eca1be4c4

  • SHA512

    687636be75f057bd7381dba193dca84d4de66f89ca918ebac147475bc7303f8a2aadfac62b33d84ee4ebe2336f29aa658fb1ccb47617f9b5f5443191d3391d5d

Score
9/10

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • Executes dropped EXE 5 IoCs
  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Loads dropped DLL 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Program Files directory 57 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Kills process with taskkill 2 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs
  • Suspicious use of SendNotifyMessage 64 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\BlueLinkrIRC.exe
    "C:\Users\Admin\AppData\Local\Temp\BlueLinkrIRC.exe"
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:900
    • C:\Program Files (x86)\Bluelinkr\Irc\setname.exe
      "C:\Program Files (x86)\Bluelinkr\Irc\setname.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:3276
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /c ""C:\Program Files (x86)\Bluelinkr\Irc\install.bat" "
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1152
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im BluelinkrServer.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:3584
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im Bluelinkrproxyauto.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:4064
        • C:\Windows\SysWOW64\reg.exe
          reg add "HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System" /v "SoftwareSASGeneration" /t "REG_DWORD" /d "1" /f
          4⤵
            PID:476
          • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
            BluelinkrServer.exe -install -silent
            4⤵
            • Executes dropped EXE
            • Adds Run key to start application
            PID:3676
          • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
            BluelinkrServer.exe -start -silent
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2860
            • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
              "C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe" -controlservice -slave
              5⤵
              • Executes dropped EXE
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SendNotifyMessage
              PID:1800
          • C:\Windows\SysWOW64\PING.EXE
            ping 127.0.0.1 -n 1 -w 100
            4⤵
            • Runs ping.exe
            PID:2120
    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      "C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe" -service
      1⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      PID:988
    • C:\Windows\SysWOW64\werfault.exe
      werfault.exe /h /shared Global\c8eccdf562fc41118fb56d72a90e0fb5 /t 3224 /p 3276
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      PID:612

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Defense Evasion

    Modify Registry

    1
    T1112

    Discovery

    System Information Discovery

    1
    T1082

    Remote System Discovery

    1
    T1018

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkr.ini
      MD5

      3f31c9b075e25f73a679bfe65f3aee3f

      SHA1

      1f0ee097fd1ea920daf90f60b17fdaa02c81299e

      SHA256

      c4baa97c28c213144a546a25dd2ad3d168c9a7c3becfb312bd13a929ace861b1

      SHA512

      ca401a1db8e90f8fb69936009f5f50ef8e96f491a9c61cb6935d41ff48c03e6c821bb145aa1e187ccd23e77bcd15643817969f9c5ec382f7f9de8b8368941014

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkr.ini
      MD5

      3f31c9b075e25f73a679bfe65f3aee3f

      SHA1

      1f0ee097fd1ea920daf90f60b17fdaa02c81299e

      SHA256

      c4baa97c28c213144a546a25dd2ad3d168c9a7c3becfb312bd13a929ace861b1

      SHA512

      ca401a1db8e90f8fb69936009f5f50ef8e96f491a9c61cb6935d41ff48c03e6c821bb145aa1e187ccd23e77bcd15643817969f9c5ec382f7f9de8b8368941014

    • C:\Program Files (x86)\Bluelinkr\Irc\BluelinkrService.dll
      MD5

      27dbb1fec517635721ba6a13e91b60b2

      SHA1

      6e3823cf8ae6b6fc10570e8fc76c107004fc989a

      SHA256

      054905d717f149b730d63caf6ca1cc2cdcd9d4f5891ffccbd41f0a59a674f350

      SHA512

      b517dccc9b63d941577e5f0e0e8492b9a1ddd312ce35c72fd8c31a3645d462820cc78bbbf180967abeec04772bd3940b337162240f07c88ccfbca116dc5b16a1

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      MD5

      bc7848c0c1539e660657c137f18eecb7

      SHA1

      ffeddf0da11f70a99980599e88bd77c02ec2a132

      SHA256

      7c109a43bf859024faaf50c3fa6841478c2d47b7768cf13521d2cd927b402698

      SHA512

      5a3c75d12d0127e96b729b79dc5f4aed4c7b859eb52eaf717fd51108005a32a5191ac6c87db75497f6219d400753635f196e6e56edb6af448a69dc12721f1c0a

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      MD5

      bc7848c0c1539e660657c137f18eecb7

      SHA1

      ffeddf0da11f70a99980599e88bd77c02ec2a132

      SHA256

      7c109a43bf859024faaf50c3fa6841478c2d47b7768cf13521d2cd927b402698

      SHA512

      5a3c75d12d0127e96b729b79dc5f4aed4c7b859eb52eaf717fd51108005a32a5191ac6c87db75497f6219d400753635f196e6e56edb6af448a69dc12721f1c0a

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      MD5

      bc7848c0c1539e660657c137f18eecb7

      SHA1

      ffeddf0da11f70a99980599e88bd77c02ec2a132

      SHA256

      7c109a43bf859024faaf50c3fa6841478c2d47b7768cf13521d2cd927b402698

      SHA512

      5a3c75d12d0127e96b729b79dc5f4aed4c7b859eb52eaf717fd51108005a32a5191ac6c87db75497f6219d400753635f196e6e56edb6af448a69dc12721f1c0a

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      MD5

      bc7848c0c1539e660657c137f18eecb7

      SHA1

      ffeddf0da11f70a99980599e88bd77c02ec2a132

      SHA256

      7c109a43bf859024faaf50c3fa6841478c2d47b7768cf13521d2cd927b402698

      SHA512

      5a3c75d12d0127e96b729b79dc5f4aed4c7b859eb52eaf717fd51108005a32a5191ac6c87db75497f6219d400753635f196e6e56edb6af448a69dc12721f1c0a

    • C:\Program Files (x86)\Bluelinkr\Irc\Bluelinkrserver.exe
      MD5

      bc7848c0c1539e660657c137f18eecb7

      SHA1

      ffeddf0da11f70a99980599e88bd77c02ec2a132

      SHA256

      7c109a43bf859024faaf50c3fa6841478c2d47b7768cf13521d2cd927b402698

      SHA512

      5a3c75d12d0127e96b729b79dc5f4aed4c7b859eb52eaf717fd51108005a32a5191ac6c87db75497f6219d400753635f196e6e56edb6af448a69dc12721f1c0a

    • C:\Program Files (x86)\Bluelinkr\Irc\HTMLayout.dll
      MD5

      19660f7dcca5176b0640b2b677e9cb08

      SHA1

      00d181acb9e07791bb05aabb91b1efbe45ac9f1f

      SHA256

      fbce41fabb06aba7c07cd0f1c47460a767b580c96b8fc1ec6739b752b2d7c0ca

      SHA512

      ffc841535c3ad99ae682cd63f4c33fb24d39d9a222d5ebd44053a59bbdfdca413d86da6b392aa6a64ebc38af72527011d6f8d95a0e4b90e324972e19441ad0e0

    • C:\Program Files (x86)\Bluelinkr\Irc\install.bat
      MD5

      04f559f28d6a9326e4a8cc40a86b329d

      SHA1

      a8706c6a489a3ff91a8a5f8cc8c7460d063655be

      SHA256

      c9da6208ec63e2cb9827f5ae4b6fcf45d14e8c48ac19b34e371e3077db86b853

      SHA512

      4b0b435b1e279486c5de9bc57458d7cb8b39f1cf2b945ebab6da38cb88574aca8e018beebbe357b2c275d19fffbb8dfaf219de74e39b51267684449913fe2823

    • C:\Program Files (x86)\Bluelinkr\Irc\setname.exe
      MD5

      787840101b0cd50716f4805bced1faa0

      SHA1

      71e7ca88c5f7b5aa257c332703d2ffeed994d22a

      SHA256

      f407ae3e683bd1d00078278881ad0f44e86130f5d4f15fb36a026ec96e95e55e

      SHA512

      82838f9f4d311ae98031e9efb72da697fae6a860933f9d9cedd884d515e3f697c47060566f8044bb176bf48a8eca5ec06730a9561a37b3c0447377ce2f5440c0

    • C:\Program Files (x86)\Bluelinkr\Irc\setname.exe
      MD5

      787840101b0cd50716f4805bced1faa0

      SHA1

      71e7ca88c5f7b5aa257c332703d2ffeed994d22a

      SHA256

      f407ae3e683bd1d00078278881ad0f44e86130f5d4f15fb36a026ec96e95e55e

      SHA512

      82838f9f4d311ae98031e9efb72da697fae6a860933f9d9cedd884d515e3f697c47060566f8044bb176bf48a8eca5ec06730a9561a37b3c0447377ce2f5440c0

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\back.png
      MD5

      51c2e465dc63554abdec6c51251f2a19

      SHA1

      6bbad8c1944b6b6fce93815c77afdff339348134

      SHA256

      3094a0489848874c1837d01a812396106412bf10df767ec10492fcefd2cfbdaf

      SHA512

      021eefb5b6e0d94e79d3a1a61ccc06ad5cdae1ea0c8a3dde4648c1689da21b219af6d88b49a27c229c39b9313d11711beaefc1c74fb8852f4415ed5a72f59a33

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\close.png
      MD5

      a02411fe39a126f07f3203cd285bab1b

      SHA1

      1131bda594b60c63ac15f0d0007d2ca4688daa56

      SHA256

      3587870c3335581b1f96a010c291c1e4457b8ef0b6ed3c945288c88058f6b31d

      SHA512

      3c8eea43eaaaf1e97552ce4e8531f96958182fab404fbaeecc2cb6c9ec4a660ecd64d3966fa95193de46984f8382297c02684c37b899e6211192e6bd3e98c496

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\minimize.png
      MD5

      be10f697f00fdedaf18e169cd5faa69c

      SHA1

      bafc0fe42870389b8f0f0fedc40b3bc2a57a3c10

      SHA256

      eff575cb4a939ec65e61c48c3b443a159e8b2aea41655fbc740e01331e76a984

      SHA512

      a3271c8ce918f9958618655e31114a3eac0e7a31804ad8a83f0844f749007eb803f5bb3f720e91b651fda8c48c98788d43ad9384b52e6f616163bcc12c58964f

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\msg.htm
      MD5

      3deddd1c0ccedc38858d8930c2b7960e

      SHA1

      577b4e270bfbb77c7abe71b8bf0c5bcd96a93cff

      SHA256

      df7b17ea71e30ca9e58e829411050e3ab8f13c676d0f4a03a7af569eaef008dc

      SHA512

      65f07c0171f1fb8f553a0bf0292871c524b5296132d999736c4aa68a6f35543e59de33ee66c8c5a73a30d156012f10a58d95ba62919a710855b88188e26df6ab

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\newpass.htm
      MD5

      026bb0ce09ce2ca8e9e69cd0ba9058f0

      SHA1

      b31364f23334b2680d40d89aba061888ca9bd4c9

      SHA256

      d6ddaa392e6978b6fd8354a8363e12c8b9623dbffe3820175be4f73ebb832222

      SHA512

      61f223d6b80946124fa770879cebfb329fdd79b02e5de98e9e2f0ccfcb4ddc2aae1a2001d6df1d7d5d069836f1a02b8c1a9c0af20e0a09d7896f662133e28121

    • C:\Program Files (x86)\Bluelinkr\Irc\ui\titlebar.png
      MD5

      6661a793bda035249ca04bbfdc27dd86

      SHA1

      172144308e0cdf37c8068c1cc61d671a2d1d1edf

      SHA256

      35cefd888cb072d0c473f611d05bc6bc7c30f59ecdc298a1f8a4d279d450147d

      SHA512

      be4eab1cf556544500c6d2e12ef99d22e88084f0cfc34cbd1a428bc4811d2613a045e35c847d854bca4d16d890ac3119eea00b47dc71ae750b2c1419cda1264f

    • \??\pipe\BluelinkrServer_Service_Control
      MD5

      d41d8cd98f00b204e9800998ecf8427e

      SHA1

      da39a3ee5e6b4b0d3255bfef95601890afd80709

      SHA256

      e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

      SHA512

      cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

    • \Program Files (x86)\Bluelinkr\Irc\Bluelinkrservice.dll
      MD5

      27dbb1fec517635721ba6a13e91b60b2

      SHA1

      6e3823cf8ae6b6fc10570e8fc76c107004fc989a

      SHA256

      054905d717f149b730d63caf6ca1cc2cdcd9d4f5891ffccbd41f0a59a674f350

      SHA512

      b517dccc9b63d941577e5f0e0e8492b9a1ddd312ce35c72fd8c31a3645d462820cc78bbbf180967abeec04772bd3940b337162240f07c88ccfbca116dc5b16a1

    • \Program Files (x86)\Bluelinkr\Irc\htmlayout.dll
      MD5

      19660f7dcca5176b0640b2b677e9cb08

      SHA1

      00d181acb9e07791bb05aabb91b1efbe45ac9f1f

      SHA256

      fbce41fabb06aba7c07cd0f1c47460a767b580c96b8fc1ec6739b752b2d7c0ca

      SHA512

      ffc841535c3ad99ae682cd63f4c33fb24d39d9a222d5ebd44053a59bbdfdca413d86da6b392aa6a64ebc38af72527011d6f8d95a0e4b90e324972e19441ad0e0

    • memory/476-129-0x0000000000000000-mapping.dmp
    • memory/1152-126-0x0000000000000000-mapping.dmp
    • memory/1800-139-0x0000000000000000-mapping.dmp
    • memory/2120-142-0x0000000000000000-mapping.dmp
    • memory/2860-133-0x0000000000000000-mapping.dmp
    • memory/3276-114-0x0000000000000000-mapping.dmp
    • memory/3584-127-0x0000000000000000-mapping.dmp
    • memory/3676-130-0x0000000000000000-mapping.dmp
    • memory/4064-128-0x0000000000000000-mapping.dmp