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Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    08/05/2024, 14:18

General

  • Target

    b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe

  • Size

    98KB

  • MD5

    8e969a1f2381657f18de466ba4f9ecc0

  • SHA1

    b95798444a7ad167dfa21ec01f4191c434d622a8

  • SHA256

    b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871

  • SHA512

    a38bd87d16f5ba768f714b07c7c574c1774f0542151fc3d0872665894a7d4c5d16bbde2b262132d9b32a80a41a6b325e400ffa0beab339e5047c420fa851c61e

  • SSDEEP

    1536:gLPQsrz8haFpmqr76/Y3WLpQQwFxV7qjh3rmKPNIwW:gLPN8QFda/2hAjZqMNId

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Enumerates connected drives 3 TTPs 21 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 43 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1192
      • C:\Users\Admin\AppData\Local\Temp\b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe
        "C:\Users\Admin\AppData\Local\Temp\b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1652
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3068
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
              PID:2160
          • C:\Windows\SysWOW64\cmd.exe
            cmd /c C:\Users\Admin\AppData\Local\Temp\$$a2359.bat
            3⤵
            • Deletes itself
            • Loads dropped DLL
            • Suspicious use of WriteProcessMemory
            PID:3040
            • C:\Users\Admin\AppData\Local\Temp\b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe
              "C:\Users\Admin\AppData\Local\Temp\b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe"
              4⤵
              • Executes dropped EXE
              PID:2604
          • C:\Windows\Logo1_.exe
            C:\Windows\Logo1_.exe
            3⤵
            • Executes dropped EXE
            • Enumerates connected drives
            • Drops file in Program Files directory
            • Drops file in Windows directory
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of WriteProcessMemory
            PID:1628
            • C:\Windows\SysWOW64\net.exe
              net stop "Kingsoft AntiVirus Service"
              4⤵
              • Suspicious use of WriteProcessMemory
              PID:2676
              • C:\Windows\SysWOW64\net1.exe
                C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                5⤵
                  PID:2580
              • C:\Windows\SysWOW64\net.exe
                net stop "Kingsoft AntiVirus Service"
                4⤵
                • Suspicious use of WriteProcessMemory
                PID:2480
                • C:\Windows\SysWOW64\net1.exe
                  C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
                  5⤵
                    PID:3028

          Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

            Filesize

            265KB

            MD5

            144a07f0eb9ee08baff92603553bb51b

            SHA1

            0cf1b6d320f8f167584209cd250c1d2e8fb31aaf

            SHA256

            796386a95ca9b7bd73cdeeb4a5974272cb2aee380a9176213e7f90930ada8506

            SHA512

            712139a7c7ba2f695d3a96440ea855505ad7b80b05657e1c31f1254168de57a2d688f21333751fe9fa4f3a6d439a506214894358aa0578a807ade561fa5050ae

          • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

            Filesize

            485KB

            MD5

            3ac7773258fe0684e8a28f3793a74ed3

            SHA1

            316fba91c21ea13e4576a5eeec832fd585c31ca0

            SHA256

            9f41dbbbdf4edcf63ba6262af0ae0d9a13874d0e008522af866f12f3e71b198f

            SHA512

            8d2647018107b940fe80b5ab979570b9f255764195976272b8c2ee8640b0e91493d5e7fa598b4ce29bda8f87cf495c6c71fd62734d51761b04bb5127eb5b2b4a

          • C:\Users\Admin\AppData\Local\Temp\$$a2359.bat

            Filesize

            722B

            MD5

            0a1cda7b743776bb1ae6648030c79943

            SHA1

            5018da1dc023810105c41d9345f718661495ca20

            SHA256

            a411930e91345aae0d158db5586e3b562cfd5c96e868b0e45a49955dd891194d

            SHA512

            78497e41de40b78466efd53f66106cd75111b77a9d5c647e524fe58099ce53223e90a74b02fc739b6959529d48d8f6d2953f155c4a2ea97c97f46a1e1bdbf892

          • C:\Users\Admin\AppData\Local\Temp\b8ca31703c834baf0e7c0d3d0f16f28710ebd7101407e5003acea8539c660871.exe.exe

            Filesize

            57KB

            MD5

            fa71e60855b37c3c26d9ebbb52a0c3de

            SHA1

            e608fea1cd4d5a34d7a86ca4e64d1db67f539f29

            SHA256

            5122bb9ce0e46f847cf1920c4e2fcead16b3101f6f03d3225e92a5f80a2f1c1c

            SHA512

            1b8cc9b37c24c9a5661e26cfb162fd1cb6419a4beb472bf100f4fbb61dfe9c353e8d3502af3d9a55d44a5f07dc0bf49412d5ca0d0d20fe466e3156ad1a88886b

          • C:\Windows\Logo1_.exe

            Filesize

            40KB

            MD5

            ee15a6a567557bb41533caabe57892ef

            SHA1

            9507149eb9a8a36be2fddca32ffc2ee56b1c0712

            SHA256

            2e77a08e9801594b1f91a8467a15f4e3078d4a9804e3a25567ac0f6a594f6eb1

            SHA512

            41c4fcfc250209b1bf9e3d4d99030ff558a46089083ef92b23f924e7c6de8d9a2dcc8013957183bf544bdff2fa3ddfd5198511c2f19989f2736bef73a8adc9e4

          • F:\$RECYCLE.BIN\S-1-5-21-1298544033-3225604241-2703760938-1000\_desktop.ini

            Filesize

            8B

            MD5

            ec89b9cba2f5e7b9394fdd901d6c3977

            SHA1

            63b0db3abcd08b863a9a3944799b41efa264db40

            SHA256

            2b4efa4e113d3044c8e47f59a7b75225cc7736c2fa28f9e52949b9441f3d77ca

            SHA512

            901f7d44754e59fba0b1b90341927744f670463f4d18e2694617f74fe4e3f456e9088530bccc16e758fc67a23f91380a3655121ba911e8ff5173f3ac4cb0f1d2

          • memory/1192-27-0x0000000002550000-0x0000000002551000-memory.dmp

            Filesize

            4KB

          • memory/1628-31-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1628-3056-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1628-18-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1628-4141-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1652-0-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB

          • memory/1652-17-0x0000000000400000-0x000000000043F000-memory.dmp

            Filesize

            252KB