Overview

overview

10

Static

static

1

URLScan

urlscan

1

https://www.yandex.c...

windows7-x64

3

https://www.yandex.c...

windows11-21h2-x64

10

Resubmissions

03-09-2024 20:54

240903-zp4vwawhmm 10

28-08-2024 22:02

240828-1x5ykszhmm 10

Analysis

  • max time kernel
    1642s
  • max time network
    1872s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240802-en
  • resource tags

    arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    03-09-2024 20:54

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General

  • Target

    https://www.yandex.com.tr/search/?text=bonzi+buddy+download&clid=2411726&lr=11508

Score
10/10
cobaltstrikecrimsonratkaitenbackdoorbootkitbotnetdefense_evasiondiscoveryevasionmacromacro_on_actionpersistenceprivilege_escalationransomwareratspywarestealerthemidatrojanupxxlm

Malware Config

Extracted

Family

crimsonrat

C2

185.136.161.124

Signatures

  • Cobalt Strike reflective loader 1 IoCs

    Detects the reflective loader used by Cobalt Strike.

  • Cobaltstrike

    Detected malicious payload which is part of Cobaltstrike.

    trojanbackdoorcobaltstrike
  • CrimsonRAT main payload 1 IoCs
  • CrimsonRat

    Crimson RAT is a malware linked to a Pakistani-linked threat actor.

    ratcrimsonrat
  • Detects Kaiten/Tsunami Payload 2 IoCs
  • Kaiten/Tsunami

    Linux-based IoT botnet which is controlled through IRC and normally used to carry out DDoS attacks.

    botnetkaiten
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Boot or Logon Autostart Execution: Active Setup 2 TTPs 9 IoCs

    Adversaries may achieve persistence by adding a Registry key to the Active Setup of the local machine.

    persistence
  • Downloads MZ/PE file
  • Drops file in Drivers directory 16 IoCs
  • Modifies Windows Firewall 2 TTPs 2 IoCs
    evasion
  • Office macro that triggers on suspicious action 5 IoCs

    Office document macro which triggers in special circumstances - often malicious.

    macromacro_on_action
  • Sets service image path in registry 2 TTPs 14 IoCs
    persistence
  • Suspicious Office macro 1 IoCs

    Office document equipped with 4.0 macros.

    macroxlm
  • Event Triggered Execution: Component Object Model Hijacking 1 TTPs

    Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

    persistenceprivilege_escalation
  • Executes dropped EXE 64 IoCs
  • Loads dropped DLL 64 IoCs
  • Modifies system executable filetype association 2 TTPs 6 IoCs
    persistence
  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

    spywarestealer
  • Reads user/profile data of web browsers 2 TTPs

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

    spywarestealer
  • Themida packer 1 IoCs

    Detects Themida, an advanced Windows software protection system.

    themida
  • UPX packed file 8 IoCs

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

    upx
  • Unexpected DNS network traffic destination 25 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Adds Run key to start application 2 TTPs 7 IoCs
    persistence
  • Blocklisted process makes network request 3 IoCs
  • Checks for any installed AV software in registry 1 TTPs 61 IoCs
  • Checks installed software on the system 1 TTPs

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

    discovery
  • Checks whether UAC is enabled 1 TTPs 4 IoCs
    evasiontrojan
  • Drops Chrome extension 1 IoCs
  • Drops desktop.ini file(s) 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

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

  • Looks up external IP address via web service 1 IoCs

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

  • Modifies WinLogon 2 TTPs 1 IoCs
    persistence
  • Network Share Discovery 1 TTPs

    Attempt to gather information on host network.

    discovery
  • Writes to the Master Boot Record (MBR) 1 TTPs 27 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Checks system information in the registry 2 TTPs 3 IoCs

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

  • Drops file in System32 directory 63 IoCs
  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 64 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

    defense_evasion
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

    discovery
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 10 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

    persistenceprivilege_escalation
  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 64 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 14 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • NSIS installer 2 IoCs
    installer
  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

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

  • Checks processor information in registry 2 TTPs 10 IoCs

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

  • Enumerates system info in registry 2 TTPs 21 IoCs
  • Kills process with taskkill 4 IoCs
    evasion
  • Modifies Control Panel 8 IoCs
    evasion
  • Modifies Internet Explorer settings 1 TTPs 64 IoCs
    adwarespyware
  • Modifies data under HKEY_USERS 64 IoCs
  • Modifies registry class 64 IoCs
  • Modifies system certificate store 2 TTPs 64 IoCs
    evasionspywaretrojan
  • NTFS ADS 64 IoCs
  • Office document contains embedded OLE objects 2 IoCs

    Detected embedded OLE objects in Office documents.

  • Suspicious behavior: AddClipboardFormatListener 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 11 IoCs
  • Suspicious behavior: LoadsDriver 30 IoCs
  • Suspicious behavior: NtCreateUserProcessBlockNonMicrosoftBinary 55 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of FindShellTrayWindow 64 IoCs