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General

  • Target

    Downloaders.zip

  • Size

    12KB

  • Sample

    241127-w6pkqs1mek

  • MD5

    94fe78dc42e3403d06477f995770733c

  • SHA1

    ea6ba4a14bab2a976d62ea7ddd4940ec90560586

  • SHA256

    16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

  • SHA512

    add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

  • SSDEEP

    384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://bitbucket.org/superappsss/1/downloads/papa_hr_build.exe

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/3.png

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://176.113.115.178/FF/2.png

Extracted

Credentials

  • Protocol:
    ftp
  • Host:
    216.146.202.21
  • Port:
    21
  • Username:
    admin
  • Password:
    11111

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

ser.nrovn.xyz:6606

ser.nrovn.xyz:7707

ser.nrovn.xyz:8808

Mutex

nfMlxLKxWkbD

Attributes
  • delay

    3

  • install

    true

  • install_file

    http.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

metasploit

Version

encoder/shikata_ga_nai

Extracted

Family

metasploit

Version

metasploit_stager

C2

144.34.162.13:3333

Extracted

Family

cobaltstrike

C2

http://�'�)���@��@'��u�.Qt�,��R�y��b� ��6��'\�<C+xS��ǎ}���0IޭQ�}�W��x��R8�&w� }�+yq����R.�kem:2470497230)���@��@'��u�.Qt�,��R�y��b� ��6��'\�<C+xS��ǎ}���0IޭQ�}�W��x��R8�&w� }�+yq����R.�kem

Extracted

Family

cryptbot

C2

fivexc5pt.top

analforeverlovyu.top

Attributes
  • url_path

    /v1/upload.php

Extracted

Family

quasar

Version

1.3.0.0

Botnet

sigorta

C2

128.0.1.24:1604

Mutex

QSR_MUTEX_rVykraFS4RvYG92h8I

Attributes
  • encryption_key

    Yjb2TFL9st7uVjRJpP63

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Extracted

Family

xworm

C2

147.185.221.22:47930

127.0.0.1:47930

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Extracted

Family

xworm

Version

5.0

C2

68.178.207.33:7000

Mutex

sSM7p4MT4JctLnRS

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

127.0.0.1:4449

135.181.185.254:4449

212.15.49.155:4449

Mutex

fssssssshsfhs444fdf%dfs

Attributes
  • delay

    11

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family

lumma

C2

https://p3ar11fter.sbs

https://3xp3cts1aim.sbs

https://owner-vacat10n.sbs

https://peepburry828.sbs

https://p10tgrace.sbs

https://befall-sm0ker.sbs

https://librari-night.sbs

https://processhol.sbs

https://cook-rain.sbs

Extracted

Family

xworm

Version

3.1

C2

18.181.154.24:7000

Mutex

w8DsMRIhXrOmk0Gn

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain

Targets

    • Target

      Downloaders.zip

    • Size

      12KB

    • MD5

      94fe78dc42e3403d06477f995770733c

    • SHA1

      ea6ba4a14bab2a976d62ea7ddd4940ec90560586

    • SHA256

      16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

    • SHA512

      add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

    • SSDEEP

      384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers written in C#.

    • Asyncrat family

    • Cobaltstrike

      Detected malicious payload which is part of Cobaltstrike.

    • Cobaltstrike family

    • CryptBot

      CryptBot is a C++ stealer distributed widely in bundle with other software.

    • Cryptbot family

    • Detect PurpleFox Rootkit

      Detect PurpleFox Rootkit.

    • Detect Xworm Payload

    • Gh0st RAT payload

    • Gh0strat

      Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.

    • Gh0strat family

    • Lumma Stealer, LummaC

      Lumma or LummaC is an infostealer written in C++ first seen in August 2022.

    • Lumma family

    • MetaSploit

      Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

    • Metasploit family

    • Phorphiex family

    • Phorphiex payload

    • Phorphiex, Phorpiex

      Phorphiex or Phorpiex Malware family which infects systems to distribute other malicious payloads such as ransomware, stealers and cryptominers.

    • PurpleFox

      PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.

    • Purplefox family

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • Redline family

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • Async RAT payload

    • Contacts a large (2234) amount of remote hosts

      This may indicate a network scan to discover remotely running services.

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

    • XMRig Miner payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Downloads MZ/PE file

    • Indicator Removal: Network Share Connection Removal

      Adversaries may remove share connections that are no longer useful in order to clean up traces of their operation.

    • Checks BIOS information in registry

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

    • Drops startup file

    • Event Triggered Execution: Component Object Model Hijacking

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • 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.

    • Indicator Removal: File Deletion

      Adversaries may delete files left behind by the actions of their intrusion activity.

    • 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.

    • Network Service Discovery

      Attempt to gather information on host's network.

    • Network Share Discovery

      Attempt to gather information on host network.

    • Power Settings

      powercfg controls all configurable power system settings on a Windows system and can be abused to prevent an infected host from locking or shutting down.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Detected potential entity reuse from brand MICROSOFT.

    • Enumerates processes with tasklist

    • Sets desktop wallpaper using registry

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks