Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc748d785a31f623…

MALICIOUS

PDF

244.6 KB Created: 2021-04-05 02:18:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 714a9aae710b65dd3c6f80a25e3f54b0 SHA-1: 5f75255321b777a954f9a6f2830deb148476e34f SHA-256: fc748d785a31f623a55521b6aed6d98b67b170287a4546905f13b158c3a00dfa
72 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file is identified as malicious by ClamAV with a specific phishing signature related to Roblox. It contains multiple embedded URLs, including one pointing to 'gaminggenerator.org/app/431946152/free-roblox-accounts-2021-march', suggesting a phishing lure for game-related accounts. The presence of a 'download button' heuristic further supports the malicious intent of directing users to download content. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing attempt.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2693

Heuristics 4

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://gaminggenerator.org/app/431946152/free-roblox-accounts-2021-march PDF link annotation
    • http://asiasieja.pl/images/hack-roblox-ipod.pdfIn PDF document text
    • http://hindicenter.com/images/roblox-high-school-money-hack-2021.pdfIn PDF document text
    • http://www.gadanie.lv/images/how-to-hack-roblox-no-download.pdfIn PDF document text
    • https://vtvvaals.nl/images/how-to-hack-roblox-top-model-2021.pdfIn PDF document text
    • https://www.sauvonsleclimat.org/images/free-roblox-robux-card-codes-2021.pdfIn PDF document text
    • http://magistrinfo.ru/images/forsaken-sword-legices-2-roblox-hack.pdfIn PDF document text
    • http://fm-express.de/images/roblox-ios-free-robux.pdfIn PDF document text
    • http://bned-leader.co.uk/images/roblox-ingame-score-hacks.pdfIn PDF document text
    • http://cleanteclogistics.com/images/build-a-boat-roblox-hacks.pdfIn PDF document text
    • http://linde-erbach.de/images/hacks-on-roblox-broken-bones.pdfIn PDF document text
    • http://gbp-trabkiwielkie.pl/images/get-free-robux-inspect.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-fashion-famous-hack-script.pdfIn PDF document text
    • https://www.millatgears.com/images/how-to-get-bloxburg-for-free-roblox.pdfIn PDF document text
    • https://esl.ipb.ac.id/images/robux-hack-no-download-games.pdfIn PDF document text
    • http://condit-pack.com/images/all-roblox-vehicle-simulator-chat-hacks.pdfIn PDF document text
    • http://global-tech-security.be/images/free-online-roblox-robux-generator-no-human.pdfIn PDF document text
    • https://www.academiaanticorrupcion.org/images/free-robux-mobile-2021.pdfIn PDF document text
    • https://zabota-kashira.ru/images/free-roblox-card.pdfIn PDF document text
    • http://autenticohostalsalou.com/images/ghost-walk-hack-roblox.pdfIn PDF document text
    • http://kfz-service-etp.de/images/get-me-free-robux.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00037269.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37269 24264 bytes
SHA-256: 37bc3a9abf08348a01ab5c80bb0034ff191be27125f0fb62e14952bca1905251
font_01_sfnt_off0003a9e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A9E5 18908 bytes
SHA-256: 2f8ac7b26df64cd783efcf3b1f408da5a9b35035029400fd499ca1179e3b24c4