Resubmissions

22-05-2024 09:14

240522-k7dzvaad9z 10

21-05-2024 10:21

240521-mdy42aaa2x 10

21-05-2024 10:18

240521-mcbx4shg72 10

17-05-2024 09:41

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17-05-2024 09:37

240517-llzvvsca21 10

11-05-2024 15:00

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11-05-2024 09:17

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11-05-2024 09:01

240511-kza8zsdb45 3

10-05-2024 10:35

240510-mmmglahf3z 10

General

  • Target

    Downloaders.zip

  • Size

    12KB

  • Sample

    240521-mcbx4shg72

  • MD5

    94fe78dc42e3403d06477f995770733c

  • SHA1

    ea6ba4a14bab2a976d62ea7ddd4940ec90560586

  • SHA256

    16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

  • SHA512

    add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

  • SSDEEP

    384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
exe.dropper

https://d22hce23hy1ej9.cloudfront.net/load/th.php?a=2836&c=1002

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

185.196.10.233:4782

79.132.193.215:4782

Mutex

b0fcdfbd-bdd4-4a5d-8ab1-7217539d4db6

Attributes
  • encryption_key

    0EC03133971030F6D05E6D59F71626F6543BBE65

  • install_name

    gfdgfdg.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    fgfdhdgg

  • subdirectory

    gfgfgf

Extracted

Family

xworm

Version

5.0

C2

79.110.49.133:5700

5.182.87.154:7000

Mutex

Bg9JRZDpyEfXxrAy

Attributes
  • install_file

    USB.exe

aes.plain
aes.plain

Extracted

Family

amadey

Version

4.20

Botnet

c767c0

C2

http://5.42.96.7

Attributes
  • install_dir

    7af68cdb52

  • install_file

    axplons.exe

  • strings_key

    e2ce58e78f631ed97d01fe7b70e85d5e

  • url_paths

    /zamo7h/index.php

rc4.plain

Extracted

Family

redline

Botnet

1

C2

185.215.113.67:26260

Extracted

Family

xworm

C2

127.0.0.1:7000

beshomandotestbesnd.run.place:7000

Attributes
  • Install_directory

    %ProgramData%

  • install_file

    taskmgr.exe

  • telegram

    https://api.telegram.org/bot2128988424:AAEkYnwvOQA95riqRZwlqBxg4GV-odRNOyo/sendMessage?chat_id=966649672

Extracted

Family

redline

Botnet

Vic

C2

beshomandotestbesnd.run.place:1111

Extracted

Family

redline

Botnet

@LOGSCLOUDYT_BOT

C2

185.172.128.33:8970

Extracted

Family

asyncrat

Version

Venom RAT + HVNC + Stealer + Grabber v6.0.2

Botnet

Default

C2

5.182.87.154:4449

Mutex

jiqsvporltpvroy

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Extracted

Family

asyncrat

Version

1.0.7

Botnet

Default

C2

127.0.0.1:8848

Mutex

DcRatMutex_qwqdanchun

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Targets

    • Target

      Downloaders.zip

    • Size

      12KB

    • MD5

      94fe78dc42e3403d06477f995770733c

    • SHA1

      ea6ba4a14bab2a976d62ea7ddd4940ec90560586

    • SHA256

      16930620b3b9166e0ffbd98f5d5b580c9919fd6ccdcc74fb996f53577f508267

    • SHA512

      add85726e7d2c69068381688fe84defe820f600e6214eff029042e3002e9f4ad52dde3b8bb28f4148cca1b950cd54d3999ce9e8445c4562d1ef2efdb1c6bdeff

    • SSDEEP

      384:6BfwcSEp9ZjKXSBIDv4dDfjlMJ7HWTHWB:efACW6Dr8HWTHWB

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • AsyncRat

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

    • Detect Lumma Stealer payload V2

    • Detect Lumma Stealer payload V4

    • Detect Xworm Payload

    • Lumma Stealer

      An infostealer written in C++ first seen in August 2022.

    • PureLog Stealer

      PureLog Stealer is an infostealer written in C#.

    • PureLog Stealer payload

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Raccoon

      Raccoon is an infostealer written in C++ and first seen in 2019.

    • Raccoon Stealer V2 payload

    • RedLine

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

    • RedLine payload

    • SectopRAT

      SectopRAT is a remote access trojan first seen in November 2019.

    • SectopRAT payload

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • WarzoneRat, AveMaria

      WarzoneRat is a native RAT developed in C++ with multiple plugins sold as a MaaS.

    • Windows security bypass

    • Xworm

      Xworm is a remote access trojan written in C#.

    • Async RAT payload

    • Warzone RAT payload

    • Command and Scripting Interpreter: PowerShell

      Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

    • Creates new service(s)

    • Downloads MZ/PE file

    • Stops running service(s)

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

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

    • Windows security modification

    • Checks installed software on the system

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

    • 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.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Command and Scripting Interpreter

1
T1059

PowerShell

1
T1059.001

System Services

2
T1569

Service Execution

2
T1569.002

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

2
T1543

Windows Service

2
T1543.003

Scheduled Task/Job

1
T1053

Defense Evasion

Impair Defenses

3
T1562

Disable or Modify Tools

2
T1562.001

Modify Registry

2
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Collection

Data from Local System

1
T1005

Command and Control

Web Service

1
T1102

Impact

Service Stop

1
T1489

Tasks