Analysis

  • max time kernel
    149s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    14/09/2024, 19:23

General

  • Target

    55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe

  • Size

    48KB

  • MD5

    0afccdcba7062a0eac1442ab279b6684

  • SHA1

    8df03692954e89f0614affae9fe6a636be62f6b8

  • SHA256

    55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb

  • SHA512

    9d3a8fd3dcca0343e41a6b7a75063f574e10ece47866cf8d286054c968ee1ca22856227fd5757ecf3a81a0933bdb01364b13327858252dda96cfe9aa1e2e087d

  • SSDEEP

    768:2s6Hp+Vxr1x5cE9Fl5pz8w1rU9hFInlI1LqYJUukGdKETL4Ibq:2Rpsrz8GvnG1hXRTlq

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 2 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
  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • 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:1388
      • C:\Users\Admin\AppData\Local\Temp\55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe
        "C:\Users\Admin\AppData\Local\Temp\55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2684
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2896
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:1908
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$aAA24.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2832
          • C:\Users\Admin\AppData\Local\Temp\55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe
            "C:\Users\Admin\AppData\Local\Temp\55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe"
            4⤵
            • Executes dropped EXE
            PID:1044
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Drops startup file
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:2868
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2612
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2724
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1916
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2596

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

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

            Filesize

            478KB

            MD5

            8ef1a94c2988444c9d5d6c36a63765d3

            SHA1

            d566ce1693e16fd605afcf2c5ea87af57af56197

            SHA256

            ab3dfdf37c3eaae2dbeb15b4e6be3659187e8e3613450664160702c787cf1623

            SHA512

            991fc8c061d831e96f6e061ec85f6d5c2aa7e7380a949bd04193ef6b0f8d495a462bf6b9bcafbd2893eefa0195bf4a191a923c36f4845e6f44a86be1e1ded45e

          • C:\Users\Admin\AppData\Local\Temp\$$aAA24.bat

            Filesize

            722B

            MD5

            8142d2df553a6495643177f4ffcf5792

            SHA1

            6c37d385128273dd0dc65a17a20af6e6ac61239b

            SHA256

            63e7e5fad59432e7306d1459d39183069c1ab62db54061e0ab509951a31c67c6

            SHA512

            c6fb82476d5e5056b3de1377d5a809b73b2889575cf45d703a4c67c43efdbe61297ea5d1231a69e54228509a1c3b60c58a0a8a66f17b6cb1db4cb4c2b524cf5f

          • C:\Users\Admin\AppData\Local\Temp\55531bf7f59392f9b32b1c6647b17bd36a75f9536cb5cd8067cbee6d2f6564fb.exe.exe

            Filesize

            14KB

            MD5

            dc6311fbfd49f41fbf35860a30e68355

            SHA1

            b08b15be412e843acaf7ad5e6df0ef1e8bdb465c

            SHA256

            ffdf81680522029c2eb578a9f442fd9692900a5c782c711e35203fb2d25620ba

            SHA512

            5e2938f5a8396154928a7d093db3843d73497cea4f49c0f1b77e3aac6e29d1db7f0ad4518587c336f0dfccb67ff33aac8e12afa70503504c5d8d46d12a86e453

          • C:\Windows\Logo1_.exe

            Filesize

            33KB

            MD5

            356cac02b916fa68cdb143461cd998e9

            SHA1

            888516965d3843e0a10864d6cc0480cc912cf0a8

            SHA256

            c0e06a40330d72717d8c82fa7844df30dd8c6d99447e2e2372dc22a95120a92f

            SHA512

            6daeea1394153fb814655ef67b6220182f8eb0fb995f189f455771412e484c6522a6965c13b6ff748060778b25397ecb8a627b2fea4dffcf526ade0aaec53965

          • F:\$RECYCLE.BIN\S-1-5-21-2703099537-420551529-3771253338-1000\_desktop.ini

            Filesize

            9B

            MD5

            e2a14c19421b289cbd51a76363b166bd

            SHA1

            5d0621d68da5a444f49c090b0725c7044d47fdb7

            SHA256

            844af243be560dc4e478aa7ea28f4959f9df45f204006bade7ae52398d651835

            SHA512

            8c49bec05605c4d2b8f07f00a7a39e70f5bd4f7c84ba221c615447f947053bf3bb0496c38e2bf8b15235c493cc5a0b41f34285fed1adb4c13572f25b67e178e5

          • memory/1388-28-0x0000000002A90000-0x0000000002A91000-memory.dmp

            Filesize

            4KB

          • memory/2684-0-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2684-12-0x00000000001C0000-0x0000000000200000-memory.dmp

            Filesize

            256KB

          • memory/2684-18-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2868-32-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2868-2963-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB

          • memory/2868-4146-0x0000000000400000-0x0000000000440000-memory.dmp

            Filesize

            256KB