Analysis

  • max time kernel
    134s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 18:47

General

  • Target

    64e73ef21d2b9d5819334be729f07ac670e6fa83111bc1b666abffc261bc2da1.exe

  • Size

    563KB

  • MD5

    b1cad70cea703c95c6bf90d74c4bfd89

  • SHA1

    1a08e9ad7c417a5011915ccda1a1ec130cd7d3ac

  • SHA256

    64e73ef21d2b9d5819334be729f07ac670e6fa83111bc1b666abffc261bc2da1

  • SHA512

    4f7c7367da4b3009f5f1691832f88de0a7df9103ba16ff43c92fb3d0eec813005a6f6f31e0b3853b2ce07e2d5c9d0be331f1e60bed9bf8f3b3ebcbcab9a4b2de

  • SSDEEP

    12288:KMrxy90uoiqvTegFhHXzNOI+74h82WRiHJ1CVVVV:nyKEgXHDNn+487Ry4VV

Malware Config

Extracted

Family

redline

Botnet

kendo

C2

77.91.124.82:19071

Attributes
  • auth_value

    5a22a881561d49941415902859b51f14

Signatures

  • Detect Mystic stealer payload 4 IoCs
  • Mystic

    Mystic is an infostealer written in C++.

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine payload 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Program crash 2 IoCs
  • Suspicious use of WriteProcessMemory 22 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\64e73ef21d2b9d5819334be729f07ac670e6fa83111bc1b666abffc261bc2da1.exe
    "C:\Users\Admin\AppData\Local\Temp\64e73ef21d2b9d5819334be729f07ac670e6fa83111bc1b666abffc261bc2da1.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2200
    • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x5112215.exe
      C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x5112215.exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of WriteProcessMemory
      PID:2892
      • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\g1240082.exe
        C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\g1240082.exe
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:2856
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
          4⤵
            PID:4460
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe"
            4⤵
              PID:2668
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 2668 -s 540
                5⤵
                • Program crash
                PID:5044
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 2856 -s 588
              4⤵
              • Program crash
              PID:1196
          • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h7567252.exe
            C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h7567252.exe
            3⤵
            • Executes dropped EXE
            PID:4624
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 456 -p 2856 -ip 2856
        1⤵
          PID:4508
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -pss -s 368 -p 2668 -ip 2668
          1⤵
            PID:4108
          • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
            "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=4200,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3464 /prefetch:8
            1⤵
              PID:4968

            Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\x5112215.exe

              Filesize

              397KB

              MD5

              b2df6c5958efbdbc123148c627bb41d3

              SHA1

              fee833e9d20ba95a4fcad101b661315c65c0a4da

              SHA256

              101390dd16f1eac4157fdecbec16f38454803a89cf0599bfeef301bc6f0ca7a9

              SHA512

              a584aeae7d51d998e6a3f4803863b1aa7c867b5a6db90a64318ab8ceb5db54233b165394e324f52e0a0296ef35cb216a72a82be632f41c9963d698d3b3a0fec9

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\g1240082.exe

              Filesize

              379KB

              MD5

              d5cf94dd77a8375c5145e566609bb0c9

              SHA1

              ae8dba7cb8ebf33368aab97ec5f150831fd40823

              SHA256

              b36053dda1b1c85bde6a04a395a6e5b08d76298beaa32183eaed4b9d26787ba1

              SHA512

              1dffe0772e113fb38515755d4f3fb5938e24698bc26efccc38547e8f08c4673b7e7dd2c26f4af628c7c1745d41f59d26a0f269062638b9ec1ec60a5daf2dec00

            • C:\Users\Admin\AppData\Local\Temp\IXP001.TMP\h7567252.exe

              Filesize

              174KB

              MD5

              8e1c9385ea1a727897547ab26f729562

              SHA1

              52e8c50fded14c4b40a303af8b2e730d8ea40879

              SHA256

              2abb2c0b109b138ffbdd22abdb8921dca6790eabf870405bd491c4194d34ec07

              SHA512

              b5f60aab2c3f7ed632adebf5f71a77b3606df9da283219b965151d99e9173d4e2d02eb8d0ea514f13ff7c9f5e44ecb6325d8f7b24ee7b0c67dc707dd19a8778f

            • memory/2668-15-0x0000000000400000-0x0000000000428000-memory.dmp

              Filesize

              160KB

            • memory/2668-18-0x0000000000400000-0x0000000000428000-memory.dmp

              Filesize

              160KB

            • memory/2668-16-0x0000000000400000-0x0000000000428000-memory.dmp

              Filesize

              160KB

            • memory/2668-14-0x0000000000400000-0x0000000000428000-memory.dmp

              Filesize

              160KB

            • memory/4624-22-0x00000000006D0000-0x0000000000700000-memory.dmp

              Filesize

              192KB

            • memory/4624-23-0x00000000028B0000-0x00000000028B6000-memory.dmp

              Filesize

              24KB

            • memory/4624-24-0x0000000005740000-0x0000000005D58000-memory.dmp

              Filesize

              6.1MB

            • memory/4624-25-0x0000000005230000-0x000000000533A000-memory.dmp

              Filesize

              1.0MB

            • memory/4624-26-0x0000000004B10000-0x0000000004B22000-memory.dmp

              Filesize

              72KB

            • memory/4624-27-0x00000000050B0000-0x00000000050EC000-memory.dmp

              Filesize

              240KB

            • memory/4624-28-0x0000000005120000-0x000000000516C000-memory.dmp

              Filesize

              304KB