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General

  • Target

    Downloaders.zip

  • Size

    12KB

  • Sample

    241128-cr9sks1kht

  • 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

Family

quasar

Version

1.4.1

Botnet

SGVP

C2

192.168.1.9:4782

150.129.206.176:4782

Ai-Sgvp-33452.portmap.host:33452

Mutex

a35ec7b7-5a95-4207-8f25-7af0a7847fa5

Attributes
  • encryption_key

    09BBDA8FF0524296F02F8F81158F33C0AA74D487

  • install_name

    User Application Data.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windowns Client Startup

  • subdirectory

    Quasar

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

14.243.221.170:2654

192.168.43.241:4782

Mutex

a7b38fdd-192e-4e47-b9ba-ca9eb81cc7bd

Attributes
  • encryption_key

    8B9AD736E943A06EAF1321AD479071E83805704C

  • install_name

    Runtime Broker.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Runtime Broker

  • subdirectory

    SubDir

Extracted

Family

quasar

Version

1.4.1

Botnet

ZJEB

C2

VIPEEK1990-25013.portmap.host:25013

Mutex

ad21b115-2c1b-40cb-adba-a50736b76c21

Attributes
  • encryption_key

    3EBA8BC34FA983893A9B07B831E7CEB183F7492D

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Windows Security Service

  • subdirectory

    SubDir

Extracted

Family

asyncrat

Botnet

Default

C2

technical-southwest.gl.at.ply.gg:58694

forums-appliances.gl.at.ply.gg:1962

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain
aes.plain

Extracted

Family

mercurialgrabber

C2

https://discordapp.com/api/webhooks/1308883657456619530/0_Ad9EyrLZrIMKH4vjM6XHyvCJJtKddsiohDSyvCWZ8HIxpyNxmVJgrKb_zO-jqSHSO0

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.3

Botnet

Default

C2

3.70.228.168:555

127.0.0.1:4449

135.181.185.254:4449

Mutex

bslxturcmlpmyqrv

Attributes
  • delay

    1

  • install

    true

  • install_file

    atat.exe

  • install_folder

    %AppData%

aes.plain
aes.plain
aes.plain

Extracted

Family

asyncrat

Version

0.5.7B

Botnet

Default

C2

3.70.228.168:555

Mutex

AsyncMutex_6SI8OkPnk

Attributes
  • delay

    3

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

0.5.8

Botnet

Default

C2

66.66.146.74:9511

Mutex

nwJFeGdDXcL2

Attributes
  • delay

    3

  • install

    true

  • install_file

    System32.exe

  • install_folder

    %AppData%

aes.plain

Extracted

Family

vidar

Version

11.1

Botnet

df523263f44cc8d55414a260a0197e4a

C2

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

Attributes
  • user_agent

    Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Extracted

Family

metasploit

Version

metasploit_stager

C2

144.34.162.13:3333

Extracted

Family

quasar

Version

1.4.0

Botnet

svhost

C2

151.177.61.79:4782

Mutex

a148a6d8-1253-4e62-bc5f-c0242dd62e69

Attributes
  • encryption_key

    5BEC1A8BC6F8F695D1337C51454E0B7F3A4FE968

  • install_name

    svhost.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhost

  • subdirectory

    svhost

Extracted

Family

redline

Botnet

TG CLOUD @RLREBORN Admin @FATHEROFCARDERS

C2

89.105.223.196:29862

Extracted

Family

xworm

Version

5.0

C2

68.178.207.33:7000

Mutex

sSM7p4MT4JctLnRS

Attributes
  • install_file

    USB.exe

aes.plain

Extracted

Family

xworm

C2

assistance-arbitration.gl.at.ply.gg:12152

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

Extracted

Family

quasar

Version

1.4.0

Botnet

Target

C2

127.0.0.1:6070

affasdqa.ddns.net:6070

haffasdqa.duckdns.org:6070

Mutex

670d21b7-71ed-4958-9ba7-a58fa54d8203

Attributes
  • encryption_key

    25B2622CE0635F9A273AB61B1B7D7B94220AC509

  • install_name

    svhoste.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svhoste

  • subdirectory

    SubDir

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

    • Detect Umbral payload

    • Detect Vidar Stealer

    • Detect Xworm Payload

    • Mercurial Grabber Stealer

      Mercurial Grabber is an open source stealer targeting Chrome, Discord and some game clients as well as generic system information.

    • Mercurialgrabber family

    • MetaSploit

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

    • Metasploit family

    • Modifies WinLogon for persistence

    • NetSupport

      NetSupport is a remote access tool sold as a legitimate system administration software.

    • Netsupport family

    • Njrat 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.

    • 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

    • Umbral

      Umbral stealer is an opensource moduler stealer written in C#.

    • Umbral family

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Vidar family

    • Xmrig family

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Xworm family

    • njRAT/Bladabindi

      Widely used RAT written in .NET.

    • xmrig

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

    • Async RAT payload

    • Enumerates VirtualBox registry keys

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

    • Looks for VirtualBox Guest Additions in registry

    • XMRig Miner payload

    • Command and Scripting Interpreter: PowerShell

      Using powershell.exe command.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Event Triggered Execution: Image File Execution Options Injection

    • Looks for VMWare Tools registry key

    • Modifies Windows Firewall

    • Possible privilege escalation attempt

    • Sets service image path in registry

    • Stops running service(s)

    • Uses browser remote debugging

      Can be used control the browser and steal sensitive information such as credentials and session cookies.

    • Checks BIOS information in registry

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

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Drops startup file

    • 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

    • Modifies file permissions

    • 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.

    • Unsecured Credentials: Credentials In Files

      Steal credentials from unsecured files.

    • 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.

    • File and Directory Permissions Modification: Windows File and Directory Permissions Modification

    • 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.

    • Maps connected drives based on registry

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

    • Network Service Discovery

      Attempt to gather information on host's 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.

    • System Binary Proxy Execution: Verclsid

      Adversaries may abuse Verclsid to proxy execution of malicious code.

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Detected potential entity reuse from brand MICROSOFT.

    • Drops file in System32 directory

    • 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