Analysis

  • max time kernel
    151s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    16/06/2022, 09:52

General

  • Target

    SR20220600525003,xlsx.exe

  • Size

    239KB

  • MD5

    1a6d08a5620ad7bfe08c88f9d47c4529

  • SHA1

    028e7cab4e3c2254bd7c45e52725a5a67ae7ef8c

  • SHA256

    a6e44c3ff8fe63ee5d3b07ad20299fe8f5bf59eead301cf5510974ad5f1285d4

  • SHA512

    cc93ef0ed7324510517a09dd94b727c55bc2943c3294ee031170a39d3b7208d74ff6c0c328d85774f9277fed161b05527201675626a4ee290e0dccf08f97d94f

Malware Config

Extracted

Family

xloader

Version

2.6

Campaign

tn61

Decoy

ryliehorrall.art

mesdco.net

street-art-ink.com

sepetcin.com

stilghar.com

hawaiipooltiles.com

fuerst-von-falkennest.com

totalvirtue.com

xdk0blc0tqy6a7.life

zootowngravel.com

kreditkarten-optionde.com

6888tlbb.xyz

albertakleekai.com

travelnurseinfofinder3.life

valleyinnswat.com

secure-remove-devices.com

digitalswamy.com

www112casinova.com

medifasttrd.com

distritoxermar.com

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

  • Xloader

    Xloader is a rebranded version of Formbook malware.

  • suricata: ET MALWARE FormBook CnC Checkin (GET)

    suricata: ET MALWARE FormBook CnC Checkin (GET)

  • suricata: ET MALWARE FormBook CnC Checkin (POST) M2

    suricata: ET MALWARE FormBook CnC Checkin (POST) M2

  • Xloader Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 3 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Modifies Internet Explorer settings 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 48 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 7 IoCs
  • Suspicious use of AdjustPrivilegeToken 10 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Drops file in Program Files directory
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2812
    • C:\Users\Admin\AppData\Local\Temp\SR20220600525003,xlsx.exe
      "C:\Users\Admin\AppData\Local\Temp\SR20220600525003,xlsx.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:3376
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:1548
    • C:\Windows\SysWOW64\control.exe
      "C:\Windows\SysWOW64\control.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious use of SetThreadContext
      • Drops file in Program Files directory
      • Modifies Internet Explorer settings
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1796
      • C:\Windows\SysWOW64\cmd.exe
        /c del "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
        3⤵
          PID:4380
        • C:\Windows\SysWOW64\cmd.exe
          /c copy "C:\Users\Admin\AppData\Local\Google\Chrome\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
          3⤵
            PID:3784
          • C:\Windows\SysWOW64\cmd.exe
            /c copy "C:\Users\Admin\AppData\Local\Microsoft\Edge\User Data\Default\Login Data" "C:\Users\Admin\AppData\Local\Temp\DB1" /V
            3⤵
              PID:924
            • C:\Program Files\Mozilla Firefox\Firefox.exe
              "C:\Program Files\Mozilla Firefox\Firefox.exe"
              3⤵
                PID:1488
            • C:\Program Files (x86)\Hfpvtvh\8pjgzfly8yx.exe
              "C:\Program Files (x86)\Hfpvtvh\8pjgzfly8yx.exe"
              2⤵
              • Executes dropped EXE
              PID:2376

          Network

                MITRE ATT&CK Enterprise v6

                Replay Monitor

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                Downloads

                • C:\Program Files (x86)\Hfpvtvh\8pjgzfly8yx.exe

                  Filesize

                  45KB

                  MD5

                  70d838a7dc5b359c3f938a71fad77db0

                  SHA1

                  66b83eb16481c334719eed406bc58a3c2b910923

                  SHA256

                  e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea

                  SHA512

                  9c9a945db5b5e7ff8105bfe74578e6f00b5f707f7c3d8f1f1fb41553a6d0eab29cef026e77877a1ad6435fa7bc369141921442e1485f2b0894c6bbcbd7791034

                • C:\Program Files (x86)\Hfpvtvh\8pjgzfly8yx.exe

                  Filesize

                  45KB

                  MD5

                  70d838a7dc5b359c3f938a71fad77db0

                  SHA1

                  66b83eb16481c334719eed406bc58a3c2b910923

                  SHA256

                  e4dbdbf7888ea96f3f8aa5c4c7f2bcf6e57d724dd8194fe5f35b673c6ef724ea

                  SHA512

                  9c9a945db5b5e7ff8105bfe74578e6f00b5f707f7c3d8f1f1fb41553a6d0eab29cef026e77877a1ad6435fa7bc369141921442e1485f2b0894c6bbcbd7791034

                • C:\Users\Admin\AppData\Local\Temp\DB1

                  Filesize

                  40KB

                  MD5

                  b608d407fc15adea97c26936bc6f03f6

                  SHA1

                  953e7420801c76393902c0d6bb56148947e41571

                  SHA256

                  b281ce54125d4250a80f48fcc02a8eea53f2c35c3b726e2512c3d493da0013bf

                  SHA512

                  cc96ddf4bf90d6aaa9d86803cb2aa30cd8e9b295aee1bd5544b88aeab63dc60bb1d4641e846c9771bab51aabbfbcd984c6d3ee83b96f5b65d09c0841d464b9e4

                • C:\Users\Admin\AppData\Local\Temp\DB1

                  Filesize

                  48KB

                  MD5

                  349e6eb110e34a08924d92f6b334801d

                  SHA1

                  bdfb289daff51890cc71697b6322aa4b35ec9169

                  SHA256

                  c9fd7be4579e4aa942e8c2b44ab10115fa6c2fe6afd0c584865413d9d53f3b2a

                  SHA512

                  2a635b815a5e117ea181ee79305ee1baf591459427acc5210d8c6c7e447be3513ead871c605eb3d32e4ab4111b2a335f26520d0ef8c1245a4af44e1faec44574

                • memory/1548-132-0x0000000000400000-0x000000000042B000-memory.dmp

                  Filesize

                  172KB

                • memory/1548-134-0x0000000000400000-0x000000000042B000-memory.dmp

                  Filesize

                  172KB

                • memory/1548-135-0x00000000015C0000-0x000000000190A000-memory.dmp

                  Filesize

                  3.3MB

                • memory/1548-136-0x0000000001A80000-0x0000000001A91000-memory.dmp

                  Filesize

                  68KB

                • memory/1796-139-0x0000000000400000-0x0000000000427000-memory.dmp

                  Filesize

                  156KB

                • memory/1796-142-0x00000000026D0000-0x0000000002A1A000-memory.dmp

                  Filesize

                  3.3MB

                • memory/1796-143-0x0000000002460000-0x00000000024F0000-memory.dmp

                  Filesize

                  576KB

                • memory/1796-145-0x0000000000530000-0x000000000055B000-memory.dmp

                  Filesize

                  172KB

                • memory/1796-140-0x0000000000530000-0x000000000055B000-memory.dmp

                  Filesize

                  172KB

                • memory/2812-146-0x0000000008470000-0x00000000085E4000-memory.dmp

                  Filesize

                  1.5MB

                • memory/2812-144-0x0000000008470000-0x00000000085E4000-memory.dmp

                  Filesize

                  1.5MB

                • memory/2812-137-0x0000000008320000-0x0000000008462000-memory.dmp

                  Filesize

                  1.3MB

                • memory/3376-130-0x0000000000C20000-0x0000000000C5C000-memory.dmp

                  Filesize

                  240KB