General

  • Target

    walterfn revived AGAIN!! unsigned.rar

  • Size

    7.5MB

  • Sample

    241122-sn34mayrdj

  • MD5

    248163ed4affcbab61509daba1c63c1b

  • SHA1

    4f3e6bbb9eb63a91204e2bea09a531818187fefd

  • SHA256

    926aaf413202b89c532a7e7f4faa364fbe44d90f53dfa00b6af04de785c644e8

  • SHA512

    ee067c82751febdd791bc98cb6e12ae0cf386708fc2acc081058a99afbb8a0159a2c7150401f6848a5bcd67997d273c0cd6c55c4870d4a466e063056293cd0c3

  • SSDEEP

    196608:8gbI0Zjj0F98dkyJOv9GyKXCua8+OrtLXC1zCqc:PbI0Zjj0F98dnw7kCua8/FXC1Pc

Malware Config

Targets

    • Target

      WalterFN REVIVED perm and temp.exe

    • Size

      7.6MB

    • MD5

      f56c04d05f7e84a2013697ec4122ed49

    • SHA1

      73037619bc747de6fad26a605dfb8f9087c274fc

    • SHA256

      a80abe51170126d2b18068704a2393a322f89c481daad6776465680e60fc4755

    • SHA512

      39fc7e12e98a3608c8d788586f5644da6069ae73dd3d96c16073b1a85503fc77d659513166e74d4865689be95130eaff1a4a19695d044dda34089cc08ee27654

    • SSDEEP

      196608:BtHYAi/wfI9jUCzi4H1qSiXLGVi7DMgpZ3Q0VMwICEc/jV:/iUIHziK1piXLGVE4Ue0VJp

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Drops file in Drivers directory

    • Clipboard Data

      Adversaries may collect data stored in the clipboard from users copying information within or between applications.

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

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

    • Obfuscated Files or Information: Command Obfuscation

      Adversaries may obfuscate content during command execution to impede detection.

    • Enumerates processes with tasklist

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

MITRE ATT&CK Enterprise v15

Tasks