Resubmissions

10-08-2023 00:44

230810-a3xahsab6s 10

29-07-2023 01:06

230729-bf3z8aba6v 10

General

  • Target

    15767660942cc7c75ff800cfeb1b759f8194d3a1332a9.exe

  • Size

    6.5MB

  • Sample

    230729-bf3z8aba6v

  • MD5

    92031e02bc46932ace98fb8b54f261f4

  • SHA1

    e4414033fedbaa9cb96660558748f36b5c0ae9d3

  • SHA256

    15767660942cc7c75ff800cfeb1b759f8194d3a1332a9fb024abdf4b86cfc9df

  • SHA512

    9407bb053c91482fa5426f3d11f5b271f42556905ba49ba0f50fd1f147c24d555086f5ffd11f36187a15ed2d9abc0c45e16c92c0b30f87849ad39a64186c1195

  • SSDEEP

    98304:FgTOuxyekXIG+AM/M8MqPtPGp/6qWXCT5QYux3bWJvAi9nzDMeEuJW2wq73:l4KM/BMqPt8/lWSDucUPqr

Malware Config

Extracted

Family

amadey

Version

3.85

C2

45.9.74.166/b7djSDcPcZ/index.php

45.9.74.141/b7djSDcPcZ/index.php

Extracted

Family

systembc

C2

5.42.65.67:4298

localhost.exchange:4298

Targets

    • Target

      15767660942cc7c75ff800cfeb1b759f8194d3a1332a9.exe

    • Size

      6.5MB

    • MD5

      92031e02bc46932ace98fb8b54f261f4

    • SHA1

      e4414033fedbaa9cb96660558748f36b5c0ae9d3

    • SHA256

      15767660942cc7c75ff800cfeb1b759f8194d3a1332a9fb024abdf4b86cfc9df

    • SHA512

      9407bb053c91482fa5426f3d11f5b271f42556905ba49ba0f50fd1f147c24d555086f5ffd11f36187a15ed2d9abc0c45e16c92c0b30f87849ad39a64186c1195

    • SSDEEP

      98304:FgTOuxyekXIG+AM/M8MqPtPGp/6qWXCT5QYux3bWJvAi9nzDMeEuJW2wq73:l4KM/BMqPt8/lWSDucUPqr

    • Amadey

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

    • SectopRAT

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

    • SectopRAT payload

    • SystemBC

      SystemBC is a proxy and remote administration tool first seen in 2019.

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

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • 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.

    • 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.

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • VMProtect packed file

      Detects executables packed with VMProtect commercial packer.

    • 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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Scheduled Task/Job

1
T1053

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Modify Registry

1
T1112

Credential Access

Unsecured Credentials

1
T1552

Credentials In Files

1
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

1
T1005

Tasks