Resubmissions

27-11-2022 17:35

221127-v6cqhaae6s 9

27-11-2022 17:17

221127-vt2tvsea79 1

General

  • Target

    Set-up-lighter.zip

  • Size

    5.5MB

  • Sample

    221127-v6cqhaae6s

  • MD5

    42256aba6fbdbf68842b64207b75a48a

  • SHA1

    5696fc1de5a97ebc5ff0bc07ed103b5c935f106c

  • SHA256

    572cf96f621410c12b54911b8bd286b44de70a3e143e536b060dce99d5751eb7

  • SHA512

    42620d18b640e0ef9e8b043e3d6d918c3189969a0e935f15a35fc001402662c208a72766000d7c7f0c73a2d850b6858fffcf217b21074c1247bb0efbf2b913d7

  • SSDEEP

    98304:5Drxl0oKOfQwhOik2Jfg5iZ3nYgsWQmdEj5A2dzytciLIsKN5pGFF:dxl0opfbMn2Ngk3daj5mtPJ

Malware Config

Targets

    • Target

      Set-up-lighter.exe

    • Size

      5.8MB

    • MD5

      6424ba9f7c036fa497c991018a09e182

    • SHA1

      f8c0bde1d722805c874eae92d776610aa10306fe

    • SHA256

      7e04e86e08094ab27371e4b9d5307f47a16043300b48a928273b1314f8a9daca

    • SHA512

      e78bb0d1c824396ed720d805df8c19510321b13e34aa7dcaeb79c4e20c5faf44a8c6f056e8629bcc74b2bfdecb201afcd9c1636664ba318cbb7e63b80f5be47b

    • SSDEEP

      98304:jxLMYUeMsfIOmQg40J1iZkfd7YkmU8uDSrf82pznNsLbZoiY:VMYUe3fwQv07iERBOrfBKo

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

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks BIOS information in registry

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

    • Loads dropped DLL

    • Themida packer

      Detects Themida, an advanced Windows software protection system.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Credentials in Files

2
T1081

Discovery

Query Registry

3
T1012

Virtualization/Sandbox Evasion

1
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

2
T1005

Tasks