Analysis

  • max time kernel
    149s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    12/10/2024, 08:06

General

  • Target

    b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe

  • Size

    56KB

  • MD5

    5d58ad8fa5d0371f0fdd28661ee3a281

  • SHA1

    e9dc457ffdb0f9030a5770e4ec05bf0150131a33

  • SHA256

    b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6

  • SHA512

    2f137c554fae079b8f6fea4462988376b73310f975ae13834d116f4c44803c1c2b8e2bcd11c89c3d976aa146bcc9ed38ad073889be494ec0a748304189432ef0

  • SSDEEP

    768:S9tyBpQFJFKZj1PVs9Ag1vzbaBrOF32zzFF+OtTDMmgqgt6jpYU5ltbDrYiI0oPC:Sncx1aeg1viBxvCOt3+6jWWvr78Pxc

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 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 WriteProcessMemory 41 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1260
      • C:\Users\Admin\AppData\Local\Temp\b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe
        "C:\Users\Admin\AppData\Local\Temp\b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe"
        2⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:1072
        • C:\Windows\SysWOW64\net.exe
          net stop "Kingsoft AntiVirus Service"
          3⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2700
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            PID:2800
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a3025.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2796
          • C:\Users\Admin\AppData\Local\Temp\b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe
            "C:\Users\Admin\AppData\Local\Temp\b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2608
            • C:\Windows\system32\WerFault.exe
              C:\Windows\system32\WerFault.exe -u -p 2608 -s 124
              5⤵
              • Loads dropped DLL
              PID:2548
        • 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:2732
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:2844
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:2600
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • System Location Discovery: System Language Discovery
            • Suspicious use of WriteProcessMemory
            PID:1128
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
              • System Location Discovery: System Language Discovery
              PID:1100

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      478KB

      MD5

      c845912f3a8d7c041a8c2f00c826ff3f

      SHA1

      3c63cf9ad0d5a52f1e0fdb72fb06a6a425cb178b

      SHA256

      a74283fa88ea195ef69d1581486241feeddb28a30503cc4831bc0efac8ecc6ee

      SHA512

      4a98d7f117eb96e0ad2289161bf11868364dafa01d4301cdfb33cc1d3ac053e4d373f71b9711efe164965a0d99fd95cf4db553e6dcbb0249a89306e5149e41dc

    • C:\Users\Admin\AppData\Local\Temp\$$a3025.bat

      Filesize

      722B

      MD5

      b614f7db48e7f3aa1881ffc7f4dfd13f

      SHA1

      e4cc2d3bdd49cf45d4433858d0276198f2ebc325

      SHA256

      a8e05549aefe058732a75679bbcefc39150bc5699abf2d794a82c2599c424a41

      SHA512

      01d76c172e6a983b9e2b6e0b8d5b800f139eb553b23d5ef3dc9d34d560bb385aa0a2d4b038d15e4b0be32703705cf17db08f557fe4cd4f89584bd2a9d787c4c5

    • C:\Users\Admin\AppData\Local\Temp\b8fea97f3ef040b6273bcd08d3be91fb1674f352aa76b29315059198f224bfb6.exe.exe

      Filesize

      23KB

      MD5

      3f9dbfee668294872ef01b90740b01d0

      SHA1

      99a4702b65485cd14736b1c2cdfb81b455dda01c

      SHA256

      40b32fea1fcadcb2db369475e2bba58b0b83f5c3bb647e2e63877726c35a9f86

      SHA512

      0113cec160d97ea0cce70860cc5b79b502d16191ee237a3abb84309499be193aa0127dbcb41fc05a90fa61484b061ec4332ad29a918db598e32fe832b74bd1e3

    • C:\Windows\Logo1_.exe

      Filesize

      33KB

      MD5

      d143d6be0f2e2ac5f65f38aa9353e37f

      SHA1

      c92ca263ed63d4e895ff1d4372ff520547dee06f

      SHA256

      9a8762ed33e5119f95257f7d46c11018df06695f51e3c0e384b22aac4a071962

      SHA512

      40b71242fea55d48142e6590465174c9e9fa6e649791e6953703b90ccdcd8025a31d82016019f2e76eaec86a64e01c10622c3ff391928a38901c49ca47aee447

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

      Filesize

      10B

      MD5

      291aa08828faa68893c7f89a0dfc158b

      SHA1

      fcae3d190f0d8c14b44dc2be0b627b0680d2eab9

      SHA256

      f9e79f635e09441b5a073e6263a1d1de881c2105d7637650b5ec2d20f6a7c841

      SHA512

      9c80a5e3e37731eb0eba85b496e512dbfe08c77c207bcb41ad429d289e3d348e8e7b83ef00052c445581df37aa60729a4f0c2dd3ed0ed2e5d05a8758a23f1f38

    • memory/1072-16-0x0000000000230000-0x000000000026D000-memory.dmp

      Filesize

      244KB

    • memory/1072-0-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1072-17-0x0000000000230000-0x000000000026D000-memory.dmp

      Filesize

      244KB

    • memory/1072-21-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/1260-33-0x00000000025F0000-0x00000000025F1000-memory.dmp

      Filesize

      4KB

    • memory/2732-37-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2732-18-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2732-2967-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB

    • memory/2732-4151-0x0000000000400000-0x000000000043D000-memory.dmp

      Filesize

      244KB