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Analysis

  • max time kernel
    150s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    25/09/2024, 11:13

General

  • Target

    ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe

  • Size

    165KB

  • MD5

    620a708d29766e1da3ea2cca0fe0e5d0

  • SHA1

    a7de11702542544ac2287e8cd0fda62257d0d013

  • SHA256

    ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d

  • SHA512

    0175738ece6f7c96769440a687d16431cf9b79f15d8ae76c53d1459980fe50962345865d220bd80f7a49e34dbc301605e2273cdbc2348d8d323648e6475a44b9

  • SSDEEP

    3072:2naY46tGNttyeQLYm1s99djmMGWBgh1002J8emEu3T7TO+9Z9sTOVrZzxVxU:C46tGdye41WYWBW1Wu3rOOuOVr8

Malware Config

Signatures

  • Drops file in Drivers directory 2 IoCs
  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • Reads user/profile data of web browsers 3 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 SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 38 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Executes dropped EXE
    PID:1152
    • C:\Users\Admin\AppData\Local\Temp\ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe
      "C:\Users\Admin\AppData\Local\Temp\ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe"
      2⤵
      • Drops file in Drivers directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1224
      • C:\Windows\SysWOW64\net.exe
        net stop "Kingsoft AntiVirus Service"
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2332
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1664
      • C:\Windows\SysWOW64\cmd.exe
        cmd /c C:\Users\Admin\AppData\Local\Temp\$$aE678.bat
        3⤵
        • Deletes itself
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2036
        • C:\Users\Admin\AppData\Local\Temp\ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe
          "C:\Users\Admin\AppData\Local\Temp\ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe"
          4⤵
          • Executes dropped EXE
          • Suspicious use of SetWindowsHookEx
          PID:2868
      • C:\Windows\Logo1_.exe
        C:\Windows\Logo1_.exe
        3⤵
        • Drops file in Drivers directory
        • 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:2896
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2688
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2856
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2748
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            5⤵
            • System Location Discovery: System Language Discovery
            PID:2584

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

    258KB

    MD5

    64acc7a926465ed93b0d333a391185b3

    SHA1

    9637951053669780bf774ab6779f6a0988fc7096

    SHA256

    73fcc4298bfe478bfe5667503735e56f5b40699c531fb258da8d70599c4e6fbb

    SHA512

    b27a93010754ea3071725fa7c39381dd5c24d95ab58f203c8612223d3a16e91aa3525ed582119bd94df4ab6737976391cee6b25b92e2b8c70e27d098ceb538b1

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

    Filesize

    478KB

    MD5

    23c2c932165e28ab0bc8488daa561473

    SHA1

    f6852391374e72097387d9af721c0aef807a2ff0

    SHA256

    d10031fa711a530bdcdb77da251ae1098ba91f9bc62f0b9d7ba92214980a71fa

    SHA512

    3f0026e56feaca95434050e7125bd9e275e0d4038d513abde516708c32c5a490a7afe1ea951da3866961e39c8c5e2e02c38c2507ba47d98964298b473f0d9f1b

  • C:\Users\Admin\AppData\Local\Temp\$$aE678.bat

    Filesize

    722B

    MD5

    067be8737dcb98ed71911946a7f12ff2

    SHA1

    e185e9b38f93867f11e95d163278bc48a9709eb0

    SHA256

    662113596874a162130a49440ba667ca071e04564e8f449babaf3f96927b5d84

    SHA512

    0d266a0d6c44d77fce81ffee3ad26bf759b64a03ea994f700ee34d1b8d14c4ef1390fc593b834d03ceb1e21c4156840cb24370f7b10ff76c178072037b15256a

  • C:\Users\Admin\AppData\Local\Temp\ef981582ac391485773d495f38c544293f15b1ffa3f2c44ac896a68bc37ae52d.exe.exe

    Filesize

    131KB

    MD5

    16438a96a8adb85472ca72da04701b29

    SHA1

    b1f5ee8bc083804de4de820255107f6541c84735

    SHA256

    9291cd97d2f1b119438f16e97ea75119f19fd959ec5414e84b337530d692e289

    SHA512

    58f659a29cb34245a261b7666b1cda4b76f2df1039f3713dda6ff5a97c33b4cc273b110d10b4131a6a5c13897efcfa9a5ef3031e0e5fb14db1adc0ac1ef25dcd

  • C:\Windows\Logo1_.exe

    Filesize

    33KB

    MD5

    0538b815d66cc3a52f4cfa0a13c4ddae

    SHA1

    9e8c232d995456d5ef90a7e85905f457e32041f1

    SHA256

    bc3f92b97dee26aec635c758906afdff39e0b26667c326024cf76cfffe5c1717

    SHA512

    b6cf06ee70c8683462fc1018e3bf05d00623fb16c7ad48916e873c849283a766d4794dc2b362c86d6485232d222bb10e12d6d2abbdf6a6a612e4401cb5353116

  • C:\Windows\system32\drivers\etc\hosts

    Filesize

    832B

    MD5

    7e3a0edd0c6cd8316f4b6c159d5167a1

    SHA1

    753428b4736ffb2c9e3eb50f89255b212768c55a

    SHA256

    1965854dfa54c72529c88c7d9f41fa31b4140cad04cf03d3f0f2e7601fcbdc6c

    SHA512

    9c68f7f72dfa109fcfba6472a1cced85bc6c2a5481232c6d1d039c88b2f65fb86070aeb26ac23e420c6255daca02ea6e698892f7670298d2c4f741b9e9415c7f

  • F:\$RECYCLE.BIN\S-1-5-21-312935884-697965778-3955649944-1000\_desktop.ini

    Filesize

    9B

    MD5

    e02899454c67c7d6d1af854fdcb53b67

    SHA1

    26fb213f7c299c2a4d8c4afd234ee0b751d7a30e

    SHA256

    0e67e90646d3ba7b46f935b205c9f89e8bff2dca7aeda3cd5dfb93868b262315

    SHA512

    e1519bebf62ab4cb28e630a201312812e04f815ec0663f7b68b478da97c0bf7c7c2238a8632540d3d1f37acbe83919fb198b39ebeb222c19faa2130ab65ffffa

  • memory/1152-32-0x0000000002B60000-0x0000000002B61000-memory.dmp

    Filesize

    4KB

  • memory/1224-13-0x0000000000230000-0x000000000026E000-memory.dmp

    Filesize

    248KB

  • memory/1224-20-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/1224-0-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2868-27-0x00000000000E0000-0x00000000000E1000-memory.dmp

    Filesize

    4KB

  • memory/2868-37-0x00000000000E0000-0x00000000000E1000-memory.dmp

    Filesize

    4KB

  • memory/2896-35-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2896-2369-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2896-18-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB

  • memory/2896-4158-0x0000000000400000-0x000000000043E000-memory.dmp

    Filesize

    248KB