General

  • Target

    cb8d5ae224e8396210326d71714297a285183aeb88583cfca24ce8d35bf84b53

  • Size

    1.8MB

  • Sample

    240326-krrwrshe2t

  • MD5

    afcac2f0e51b3530c8a47e2e8a713cad

  • SHA1

    d4f9364b01087b18875757bd02bddb824b757492

  • SHA256

    cb8d5ae224e8396210326d71714297a285183aeb88583cfca24ce8d35bf84b53

  • SHA512

    7e92a404f0a804357f1c4c8bd07692da21a4b102dec0ba532ccf3ccb0a45d5d564a75f7d354b2f7c0f8b7fb0f09348dec035e582808291c3a16de25c9c8b0208

  • SSDEEP

    49152:BDT83GN3pTOTt+WTuoRo9lr56aUrE2QWH:583GNcTt+WTuqo7rTUA2Q

Malware Config

Extracted

Family

amadey

Version

4.18

C2

http://193.233.132.56

Attributes
  • install_dir

    09fd851a4f

  • install_file

    explorha.exe

  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/index.php

rc4.plain

Extracted

Family

amadey

Version

4.18

C2

http://193.233.132.56

Attributes
  • strings_key

    443351145ece4966ded809641c77cfa8

  • url_paths

    /Pneh2sXQk0/index.php

rc4.plain

Extracted

Family

amadey

Version

4.17

C2

http://193.233.132.167

Attributes
  • strings_key

    1a9519d7b465e1f4880fa09a6162d768

  • url_paths

    /enigma/index.php

rc4.plain

Extracted

Family

stealc

C2

http://185.172.128.209

Attributes
  • url_path

    /3cd2b41cbde8fc9c.php

Targets

    • Target

      cb8d5ae224e8396210326d71714297a285183aeb88583cfca24ce8d35bf84b53

    • Size

      1.8MB

    • MD5

      afcac2f0e51b3530c8a47e2e8a713cad

    • SHA1

      d4f9364b01087b18875757bd02bddb824b757492

    • SHA256

      cb8d5ae224e8396210326d71714297a285183aeb88583cfca24ce8d35bf84b53

    • SHA512

      7e92a404f0a804357f1c4c8bd07692da21a4b102dec0ba532ccf3ccb0a45d5d564a75f7d354b2f7c0f8b7fb0f09348dec035e582808291c3a16de25c9c8b0208

    • SSDEEP

      49152:BDT83GN3pTOTt+WTuoRo9lr56aUrE2QWH:583GNcTt+WTuqo7rTUA2Q

    • Amadey

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

    • Glupteba

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

    • Glupteba payload

    • RisePro

      RisePro stealer is an infostealer distributed by PrivateLoader.

    • Stealc

      Stealc is an infostealer written in C++.

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Modifies Windows Firewall

    • 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

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • 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

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Privilege Escalation

Create or Modify System Process

1
T1543

Windows Service

1
T1543.003

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Impair Defenses

1
T1562

Disable or Modify System Firewall

1
T1562.004

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

2
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Remote System Discovery

1
T1018

Collection

Data from Local System

3
T1005

Command and Control

Web Service

1
T1102

Tasks