Analysis

  • max time kernel
    98s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19-11-2022 23:21

General

  • Target

    acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe

  • Size

    212KB

  • MD5

    1b5179dd7832afc0ba092c0e80f21450

  • SHA1

    5cce39b3e85c432c2ad135874e11d759b133789f

  • SHA256

    acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3

  • SHA512

    395f7334432e9e377688d707786be28646214bf1abbcdb2f6dc143d5e9d267414732a47bebbf9e146552d4f713cfe6115c7d69deb6b146814a24a311a3b44ab7

  • SSDEEP

    3072:sr85Ckb7XSAF/+E7eKb/mqz7u3F4VkU3QRFeJDK+90X:k9IDSAF/7eKlzy3KCIgeJSX

Malware Config

Signatures

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Reads user/profile data of web browsers 2 TTPs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry class 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe
    "C:\Users\Admin\AppData\Local\Temp\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4788
    • C:\Users\Admin\AppData\Local\Temp\3582-490\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe"
      2⤵
      • Executes dropped EXE
      PID:4132

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe

    Filesize

    171KB

    MD5

    8ab7aa6286f2919518495597d7134fdb

    SHA1

    6e017e8bcd2e91027bb9dfef993d6896fbcb2192

    SHA256

    aa6398b539dbe090f0a62ba7c38acd44551f8e75dba58e40b3d0c97c0c8a7ee4

    SHA512

    9762276a2b96112221fd0db46441783d306010c9977cfe1185e014d0a76a14c6d472bf5a8bea931ab6d57a82193da15e10598e92083ba1f2ab67a035b5c0b6c6

  • C:\Users\Admin\AppData\Local\Temp\3582-490\acf99f5ae92cfe459fbbebe689f60a8b9aff04b8ce988100750f7c36472441b3.exe

    Filesize

    171KB

    MD5

    8ab7aa6286f2919518495597d7134fdb

    SHA1

    6e017e8bcd2e91027bb9dfef993d6896fbcb2192

    SHA256

    aa6398b539dbe090f0a62ba7c38acd44551f8e75dba58e40b3d0c97c0c8a7ee4

    SHA512

    9762276a2b96112221fd0db46441783d306010c9977cfe1185e014d0a76a14c6d472bf5a8bea931ab6d57a82193da15e10598e92083ba1f2ab67a035b5c0b6c6

  • memory/4132-132-0x0000000000000000-mapping.dmp