Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc6bd6ccc534153c…

MALICIOUS

PDF

244.3 KB Created: 2021-04-05 05:08:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-23
MD5: ccebf841e020db7f72fafbe5c7621061 SHA-1: 81d6dfb8d863a47dd0f12a80802d2abb4961262a SHA-256: fc6bd6ccc534153cc85a6cf89675e81b0eff283ec220a5adddefed90385ff268
112 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The file is identified as a PDF containing a lure for a "Free Robux Giveaway" and impersonates the Apple brand. The embedded URL `http://gaminggenerator.org/app/431946152/free-robux-giveaway-no-hacks-2021` is associated with a credential phishing attempt. ClamAV detection further confirms its malicious nature as `Pdf.Phishing.Roblox062100-9873116-0`.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.2693

Heuristics 5

  • ClamAV: Pdf.Phishing.Roblox062100-9873116-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Roblox062100-9873116-0
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://gaminggenerator.org/app/431946152/free-robux-giveaway-no-hacks-2021.
  • 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-robux-giveaway-no-hacks-2021 PDF link annotation
    • https://icefuture.ru/images/booga-booga-roblox-cheat.pdfIn PDF document text
    • http://wcasrock.org/images/ninja-animation-package-free-roblox.pdfIn PDF document text
    • http://kermas.eu/images/free-roblox-accounts-and-passwords-2021.pdfIn PDF document text
    • https://europainstitut.hu/images/roblox-roblox-free.pdfIn PDF document text
    • http://solidcommunication.ch/images/robux-hack-2021-no-human-verification.pdfIn PDF document text
    • http://consultinggirona.es/images/freed-roblox.pdfIn PDF document text
    • http://xn-----clcdhzcbmgnochhb1boe1a6b.xn--p1ai/images/roblox-free-robux-simulator.pdfIn PDF document text
    • https://www.yewtreealpacas.co.uk/images/aroboy-10-hacker-roblox.pdfIn PDF document text
    • http://domaizdereva24.ru/images/roblox-free-hair-boy.pdfIn PDF document text
    • https://www.europap.cz/images/roblox-free-adidas-teu.pdfIn PDF document text
    • http://www.awakeningtruth.org/images/code-triche-roblox-robux-free.pdfIn PDF document text
    • http://bau-lk.de/images/download-roblox-free-on-xbox-360.pdfIn PDF document text
    • http://altc.de/images/roblox-robux-hack-2021.pdfIn PDF document text
    • http://www.visiblefilm.com/images/roblox-skull-kid-free.pdfIn PDF document text
    • http://cleanteclogistics.com/images/free-robux-hack-xbox-one.pdfIn PDF document text
    • http://jasperfirstumc.com/images/hack-roblox-robux-apk.pdfIn PDF document text
    • http://pa-tanjungselor.go.id/images/best-admin-hack-roblox.pdfIn PDF document text
    • http://www.teapotjewelry.com/images/infect-roblox-games-hack.pdfIn PDF document text
    • https://www.dachytarasowe.eu/images/how-to-download-roblox-on-ps4-for-free.pdfIn PDF document text
    • http://posterprintshop.nl/images/how-to-hack-roblox-accounts-real.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_off00037221.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x37221 23980 bytes
SHA-256: cbc9b9200f2fa1367f51a10042dc1f07cd4ba79fd5b33835d45175cc7e1ffb3d
font_01_sfnt_off0003a850.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3A850 18956 bytes
SHA-256: fa762d1bf8f439a91d25892bf2fb0799bb3c8f61d34e146fcdbaa45467c09ca6

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