General

  • Target

    3a66552b951bcac1100cbd7e7af6cd14.exe

  • Size

    1.8MB

  • Sample

    230728-wwlq4agd56

  • MD5

    3a66552b951bcac1100cbd7e7af6cd14

  • SHA1

    372acaaacf60624d612dec2bc02786963154777d

  • SHA256

    a5ebf3f3762dc01bca3696993961927ec6aa376c7246b88089eba88f039d69d5

  • SHA512

    d0f3baf9c3fa145bb69d3e36400c403c328905ad3b4ce79314f8c054c82e415be64f579758a9cd5c7fec8f235447e51ed95810f1133327c246ad3824ecd83d30

  • SSDEEP

    24576:2ZfW54hpvs/dLb1ubIyzUY1waiQ4dDoMYWuxU/P3ZzbB3Mm1/vDrheqDqTGQVqF1:2ZfWSqbCKaiFdIWusvpbB3j/ZeqDcZA

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

      3a66552b951bcac1100cbd7e7af6cd14.exe

    • Size

      1.8MB

    • MD5

      3a66552b951bcac1100cbd7e7af6cd14

    • SHA1

      372acaaacf60624d612dec2bc02786963154777d

    • SHA256

      a5ebf3f3762dc01bca3696993961927ec6aa376c7246b88089eba88f039d69d5

    • SHA512

      d0f3baf9c3fa145bb69d3e36400c403c328905ad3b4ce79314f8c054c82e415be64f579758a9cd5c7fec8f235447e51ed95810f1133327c246ad3824ecd83d30

    • SSDEEP

      24576:2ZfW54hpvs/dLb1ubIyzUY1waiQ4dDoMYWuxU/P3ZzbB3Mm1/vDrheqDqTGQVqF1:2ZfWSqbCKaiFdIWusvpbB3j/ZeqDcZA

    • Amadey

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

    • Lumma Stealer

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

    • 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.

    • 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.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

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

2
T1552

Credentials In Files

2
T1552.001

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

2
T1005

Tasks