Analysis

  • max time kernel
    361s
  • max time network
    514s
  • platform
    windows7_x64
  • resource
    win7-20230712-en
  • resource tags

    arch:x64arch:x86image:win7-20230712-enlocale:en-usos:windows7-x64system
  • submitted
    04-08-2023 05:05

General

  • Target

    Tool Reg Gmail/Tool Reg Gmail.exe

  • Size

    2.9MB

  • MD5

    9bb4f8efcb4bd9f775cbf2bb124b52fa

  • SHA1

    293c86f7c01b2112acd8f501eb6bece4261c0c68

  • SHA256

    fbcad70631d25c84ce0248aff8f3c3754c9b6f44bc95e159477373dcd0244c40

  • SHA512

    7d5b92476685053d2ee690d09b548580ec828803eebd1863706bd93235ff94f2281bcfb16fb36ec8725220370377892e342f9948727de8b8a9b405029705cf0a

  • SSDEEP

    49152:yJCdNYoYW4IETrsgUvu9N8ivdKDhA+WsPP6QmUTftIsmNm/5XhG34AiROr2J3Y2D:yJYYVrsk9N8ivyhAdsPSQxgU11lwr2Jh

Malware Config

Signatures

  • StormKitty

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

  • StormKitty payload 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Looks up external IP address via web service 1 IoCs

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

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Program crash 1 IoCs
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Tool Reg Gmail\Tool Reg Gmail.exe
    "C:\Users\Admin\AppData\Local\Temp\Tool Reg Gmail\Tool Reg Gmail.exe"
    1⤵
    • Modifies system certificate store
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2344
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2344 -s 1768
      2⤵
      • Program crash
      PID:2176

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    344B

    MD5

    75bd75f4d174466e45634b79350a19ce

    SHA1

    94ef062394375b7653742cd1e03e92bfd5845637

    SHA256

    3c8b887532bfa3908c5849e89f3ccbd4547938be74275b7ce65b988506d2bd1a

    SHA512

    bbafcc67705ea094b8aaa1936ea871f1909ced1bd66883d0cd0a6dc4993f8f36e8496c94b624cdf39a514ce1afa10cd879bd64fa474a8c64eeeb187e5abbd4d4

  • C:\Users\Admin\AppData\Local\Temp\CabA8EE.tmp

    Filesize

    62KB

    MD5

    3ac860860707baaf32469fa7cc7c0192

    SHA1

    c33c2acdaba0e6fa41fd2f00f186804722477639

    SHA256

    d015145d551ecd14916270efad773bbc9fd57fad2228d2c24559f696c961d904

    SHA512

    d62ad2408c969a95550fb87efda50f988770ba5e39972041bf85924275baf156b8bec309ecc6409e5acdd37ec175dea40eff921ab58933b5b5b5d35a6147567c

  • C:\Users\Admin\AppData\Local\Temp\TarAA0A.tmp

    Filesize

    164KB

    MD5

    4ff65ad929cd9a367680e0e5b1c08166

    SHA1

    c0af0d4396bd1f15c45f39d3b849ba444233b3a2

    SHA256

    c8733c93cc5aaf5ca206d06af22ee8dbdec764fb5085019a6a9181feb9dfdee6

    SHA512

    f530dc0d024a5a3b8903ffaaa41b608a5ccdd6da4ba1949f2c2e55a9fca475fec5c8d2119b5763cabe7ef1c3788fb9dcac621869db51d65b1d83cfe404fb4c27

  • memory/2344-55-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2344-54-0x00000000009A0000-0x0000000000C96000-memory.dmp

    Filesize

    3.0MB

  • memory/2344-56-0x00000000023C0000-0x0000000002400000-memory.dmp

    Filesize

    256KB

  • memory/2344-120-0x0000000005850000-0x00000000058B6000-memory.dmp

    Filesize

    408KB

  • memory/2344-122-0x00000000022A0000-0x00000000022C0000-memory.dmp

    Filesize

    128KB

  • memory/2344-134-0x0000000005B70000-0x0000000005BE8000-memory.dmp

    Filesize

    480KB

  • memory/2344-146-0x0000000006350000-0x00000000063FA000-memory.dmp

    Filesize

    680KB

  • memory/2344-147-0x0000000074DE0000-0x00000000754CE000-memory.dmp

    Filesize

    6.9MB

  • memory/2344-149-0x00000000023C0000-0x0000000002400000-memory.dmp

    Filesize

    256KB