General

  • Target

    41cca3fa0f500dc6c17d1f02fc906d2b0c769210af9c4286760b84ecf46cab89

  • Size

    386KB

  • Sample

    240401-fjx1laed63

  • MD5

    16f67f1a6e10f044bc15abe8c71b3bd6

  • SHA1

    ce0101205b919899a2a2f577100377c2a6546171

  • SHA256

    41cca3fa0f500dc6c17d1f02fc906d2b0c769210af9c4286760b84ecf46cab89

  • SHA512

    a11db01bf55e3497644918c7dcc6180e0911261f39f062e653f000e1365dc9668fe5bd1d0fee0ae5c740a6477bcea510ba8c5ff6831c3bdb0d7c0590d2487e3c

  • SSDEEP

    6144:rSPQ0j90DAUc6e84vdOm7QbQeo4N5P/hCakUhD4doTA3oEfMaH0RsN400:rE94vc984v57pkN5XMakqDkvNV0uN8

Malware Config

Targets

    • Target

      41cca3fa0f500dc6c17d1f02fc906d2b0c769210af9c4286760b84ecf46cab89

    • Size

      386KB

    • MD5

      16f67f1a6e10f044bc15abe8c71b3bd6

    • SHA1

      ce0101205b919899a2a2f577100377c2a6546171

    • SHA256

      41cca3fa0f500dc6c17d1f02fc906d2b0c769210af9c4286760b84ecf46cab89

    • SHA512

      a11db01bf55e3497644918c7dcc6180e0911261f39f062e653f000e1365dc9668fe5bd1d0fee0ae5c740a6477bcea510ba8c5ff6831c3bdb0d7c0590d2487e3c

    • SSDEEP

      6144:rSPQ0j90DAUc6e84vdOm7QbQeo4N5P/hCakUhD4doTA3oEfMaH0RsN400:rE94vc984v57pkN5XMakqDkvNV0uN8

    • Detect ZGRat V1

    • Detects DLL dropped by Raspberry Robin.

      Raspberry Robin.

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Modifies firewall policy service

    • Rhadamanthys

      Rhadamanthys is an info stealer written in C++ first seen in August 2022.

    • Stealc

      Stealc is an infostealer written in C++.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Modifies boot configuration data using bcdedit

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • UPX packed file

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

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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.

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks