Resubmissions

06-11-2022 08:11

221106-j28rladfdr 10

31-10-2022 17:01

221031-vjjkjacdbr 8

Analysis

  • max time kernel
    150s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    31-10-2022 17:01

General

  • Target

    816C.exe

  • Size

    32KB

  • MD5

    7129291fc3d97377200f8a24ad06930a

  • SHA1

    3f858d2837529e6c973ffa7c26c643e9748e7282

  • SHA256

    650f0d694c0928d88aeeed649cf629fc8a7bec604563bca716b1688227e0cc7e

  • SHA512

    6bd4537a79f839c2964a814eed2fd5c217a969632e267afbe028b04a91a410abd594fb45bf1cba954f8be71e6041a923e932994754fcd46cc71a0bbaf4a932a1

  • SSDEEP

    384:s+ImkKRjvD/XlXPRPNTEUZytgSisYuaDhcWNDkSIvrfPxLCk9Hf/z:WKRjvTXlXPRNTRZ6hisYugcXjfNCkl

Malware Config

Signatures

  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Drops startup file 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in Program Files directory 64 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\816C.exe
    "C:\Users\Admin\AppData\Local\Temp\816C.exe"
    1⤵
    • Modifies extensions of user files
    • Drops startup file
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in Program Files directory
    PID:1184

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1184-56-0x0000000000400000-0x0000000000409000-memory.dmp

    Filesize

    36KB

  • memory/1184-55-0x0000000000110000-0x0000000000115000-memory.dmp

    Filesize

    20KB

  • memory/1184-54-0x0000000000020000-0x0000000000027000-memory.dmp

    Filesize

    28KB