Overview

overview

10

Static

static

4ef3b9bb18...58.exe

windows7-x64

10

4ef3b9bb18...58.exe

windows10-2004-x64

1

Sharing

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General

  • Target

    4ef3b9bb1838d76bda8e4e09b033c1948ed6d96c4df1962d7e8b3006ac121158

  • Size

    104KB

  • Sample

    230129-vhlcqsed74

  • MD5

    76bdd809f1bf5dbe375dc15749932959

  • SHA1

    e31ec86484cb2bf3b560e2f611e04fa8e4e702dd

  • SHA256

    4ef3b9bb1838d76bda8e4e09b033c1948ed6d96c4df1962d7e8b3006ac121158

  • SHA512

    3bd57143ff5dda15db19ec33aec123d9df8852c7f804bf499c7d59b100d545c106badf34040a634dbd9bfd62f8c94500b46d6dbff8366afb2dc956796e9e81c2

  • SSDEEP

    1536:cb4/EQxklOmCBboyKAqJk3uNdzh1Syj4OPio8b4/EQx:8Iboy+6Kayj4ON

Score
10/10
guloaderdownloaderguloader

Malware Config

Extracted

Family

guloader

C2

http://mtspsmjeli.sch.id/cl/Maly%20nanocre%202021_ECMFFfzt176.bin

xor.base64

Targets

    • Target

      4ef3b9bb1838d76bda8e4e09b033c1948ed6d96c4df1962d7e8b3006ac121158

    • Size

      104KB

    • MD5

      76bdd809f1bf5dbe375dc15749932959

    • SHA1

      e31ec86484cb2bf3b560e2f611e04fa8e4e702dd

    • SHA256

      4ef3b9bb1838d76bda8e4e09b033c1948ed6d96c4df1962d7e8b3006ac121158

    • SHA512

      3bd57143ff5dda15db19ec33aec123d9df8852c7f804bf499c7d59b100d545c106badf34040a634dbd9bfd62f8c94500b46d6dbff8366afb2dc956796e9e81c2

    • SSDEEP

      1536:cb4/EQxklOmCBboyKAqJk3uNdzh1Syj4OPio8b4/EQx:8Iboy+6Kayj4ON

    Score
    10/10
    guloaderdownloaderguloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader payload

      guloader

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix

Collection

    Command and Control

      Credential Access

        Defense Evasion

          Discovery

          Execution

            Exfiltration

              Impact

                Initial Access

                  Lateral Movement

                    Persistence

                      Privilege Escalation

                        Tasks