General

  • Target

    RFQ.xll

  • Size

    728KB

  • Sample

    220719-wme7ysfgg3

  • MD5

    8256cc1447b4199fbe35f627cffd3ae9

  • SHA1

    51540c8084f61ae5a9aafeb6b681b74cddc52cec

  • SHA256

    7ba2a7701e6a8519f6c61142c669c4f5da01fe09b1bb789078b888da2a832be9

  • SHA512

    67e1231aec5b9c81f04e7f90a6d60d5ad2b83301da8fa499c31fea43e4611962b3a0a9dfd41f6aa27f611b3d2035474a2ac0a293266d81b0b30cdd6026d036da

Malware Config

Extracted

Language
xlm4.0
Source

Extracted

Family

arkei

Botnet

Default

Targets

    • Target

      RFQ.xll

    • Size

      728KB

    • MD5

      8256cc1447b4199fbe35f627cffd3ae9

    • SHA1

      51540c8084f61ae5a9aafeb6b681b74cddc52cec

    • SHA256

      7ba2a7701e6a8519f6c61142c669c4f5da01fe09b1bb789078b888da2a832be9

    • SHA512

      67e1231aec5b9c81f04e7f90a6d60d5ad2b83301da8fa499c31fea43e4611962b3a0a9dfd41f6aa27f611b3d2035474a2ac0a293266d81b0b30cdd6026d036da

    • Arkei

      Arkei is an infostealer written in C++.

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks