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General

  • Target

    YammiBeta.exe

  • Size

    1.1MB

  • Sample

    230826-qzq74aae76

  • MD5

    6b5050c12abc27bad622f9af8ed7ebe3

  • SHA1

    506be642a7d276c783bfd32a754a9bd1373abaea

  • SHA256

    7de778c5153ba0ae2157f8a3ea78ef402c63d014a9fa719257cee24089e4a88f

  • SHA512

    22ffa4c6afd0661307ca1a3a349e19f9fbb8739e382e2fea7b1ec59200c3d7ca06241b2f5154246ce2b8165da26eac31e70f2a0f4ff586e5b09cf0c993b2d319

  • SSDEEP

    24576:348l0DlMFVPNpQiWq5KMsEINq4pXCxTRg/9QyGTlouInmUf/6ix5GWZ:35yeVPRWq5KMspBpX+wLEojnm3RE

Malware Config

Targets

    • Target

      YammiBeta.exe

    • Size

      1.1MB

    • MD5

      6b5050c12abc27bad622f9af8ed7ebe3

    • SHA1

      506be642a7d276c783bfd32a754a9bd1373abaea

    • SHA256

      7de778c5153ba0ae2157f8a3ea78ef402c63d014a9fa719257cee24089e4a88f

    • SHA512

      22ffa4c6afd0661307ca1a3a349e19f9fbb8739e382e2fea7b1ec59200c3d7ca06241b2f5154246ce2b8165da26eac31e70f2a0f4ff586e5b09cf0c993b2d319

    • SSDEEP

      24576:348l0DlMFVPNpQiWq5KMsEINq4pXCxTRg/9QyGTlouInmUf/6ix5GWZ:35yeVPRWq5KMspBpX+wLEojnm3RE

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • DCRat payload

      Detects payload of DCRat, commonly dropped by NSIS installers.

    • Downloads MZ/PE file

    • 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.

    • Looks up external IP address via web service

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Enterprise v15

Tasks