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Analysis

  • max time kernel
    41s
  • max time network
    142s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    05/05/2023, 11:27

General

  • Target

    final INV, PL, BL..exe

  • Size

    223KB

  • MD5

    80b48131a8ee8130588c6e8915905a4a

  • SHA1

    29493397e53171528e9587581b750ac85333c174

  • SHA256

    29a028df9898f4d21557863d584879c54b759de951022a419cb4b2b6b40a87bf

  • SHA512

    d2511b3014689e11ebb18ec18eb1dfd64b86b00d2acc114ab3360b8b575c4d1942883f62b2123b5b737b9f95a822a849616b9f3c7fab4f0e7c0ece75a231ba23

  • SSDEEP

    3072:DA4CFu2f+4KMKXk0Q9gsYDDAJmGIrmMvSh3/BxYrOW5qmHohiFQQbTgjnIPX3XgE:E4sL+GKXk0F+IRXM+/5DohiyQ+yI4

Malware Config

Extracted

Family

snakekeylogger

Credentials

  • Protocol:
    smtp
  • Host:
    mail.rubagas.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ruba3004

Signatures

  • Snake Keylogger

    Keylogger and Infostealer first seen in November 2020.

  • Snake Keylogger payload 8 IoCs
  • StormKitty

    StormKitty is an open source info stealer written in C#.

  • StormKitty payload 7 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe
    "C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1236
    • C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe
      "C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe"
      2⤵
        PID:2028
      • C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe
        "C:\Users\Admin\AppData\Local\Temp\final INV, PL, BL..exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Modifies system certificate store
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • outlook_office_path
        • outlook_win_path
        PID:2044

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015

      Filesize

      62KB

      MD5

      3ac860860707baaf32469fa7cc7c0192

      SHA1

      c33c2acdaba0e6fa41fd2f00f186804722477639

      SHA256

      d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

      SHA512

      d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

      Filesize

      344B

      MD5

      32d7725621092caebbb414be58f92baf

      SHA1

      2ff6ef79ad101a61c79a115769f426d6e1b43ec9

      SHA256

      8b810ebcfd5e217dbcdeff8c83b5ddc60db5724c73fc5f43bd999bd8209bdca2

      SHA512

      4b209ad9a45ee752da02519f4265487961134404eae2cdc6efb56e0e4015788967af171865ca9e60e40269a0333e93257b6988096238810dbb54fde669fc3932

    • C:\Users\Admin\AppData\Local\Temp\CabC90C.tmp

      Filesize

      61KB

      MD5

      fc4666cbca561e864e7fdf883a9e6661

      SHA1

      2f8d6094c7a34bf12ea0bbf0d51ee9c5bb7939a5

      SHA256

      10f3deb6c452d749a7451b5d065f4c0449737e5ee8a44f4d15844b503141e65b

      SHA512

      c71f54b571e01f247f072be4bbebdf5d8410b67eb79a61e7e0d9853fe857ab9bd12f53e6af3394b935560178107291fc4be351b27deb388eba90ba949633d57d

    • C:\Users\Admin\AppData\Local\Temp\TarCBF1.tmp

      Filesize

      164KB

      MD5

      4ff65ad929cd9a367680e0e5b1c08166

      SHA1

      c0af0d4396bd1f15c45f39d3b849ba444233b3a2

      SHA256

      c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

      SHA512

      f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

    • memory/1236-67-0x0000000004AA0000-0x0000000004AE0000-memory.dmp

      Filesize

      256KB

    • memory/1236-55-0x0000000000450000-0x0000000000488000-memory.dmp

      Filesize

      224KB

    • memory/1236-56-0x00000000003C0000-0x00000000003CA000-memory.dmp

      Filesize

      40KB

    • memory/1236-87-0x0000000004AA0000-0x0000000004AE0000-memory.dmp

      Filesize

      256KB

    • memory/1236-54-0x0000000001260000-0x000000000129E000-memory.dmp

      Filesize

      248KB

    • memory/2044-62-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-66-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-64-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-68-0x00000000047C0000-0x0000000004800000-memory.dmp

      Filesize

      256KB

    • memory/2044-61-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

      Filesize

      4KB

    • memory/2044-59-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-60-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-58-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB

    • memory/2044-57-0x0000000000400000-0x0000000000426000-memory.dmp

      Filesize

      152KB