Malicious PDF — malware analysis report

Static analysis result for SHA-256 291de193597aab40…

MALICIOUS

PDF

33.9 KB Created: 2021-06-30 05:40:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 81d8bf68e24e0c42ae203c6ddc8e54e0 SHA-1: 54d9d2c94c18cf1166711dcd13ec0d632f4c92da SHA-256: 291de193597aab4006138d43918a2f71956c1efe115892c13ce45966ae5a9178
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs and a call-to-action phrase, strongly suggesting a phishing or malware distribution attempt. The document body explicitly mentions 'Free Robux Plz' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a lure for game-related scams. The presence of external URIs and a URI pointing to a raw IP address further supports the malicious intent, likely to download a second-stage payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://netcdn.co/app/431946152/free-robux-plz-game-hack PDF link annotation
    • http://183.91.70.11/repository/roblox-fashion-famous-vip-free_GM431946152.pdfPDF link annotation
    • http://183.91.70.11/repository/roblox-sciprt-executors-free-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/buy-robux-free-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-game-cards-free-pin_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/hacker-vs-glitcher-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-paintball-hack_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/no-survey-no-human-verification-free-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-hacked-version-download_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-hack-jailbreak-roblox-noclip_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-hotel-logo-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-com-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-iron-man-suit-free_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-robux-oprewards_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-unused-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-spins-apk_GM406889139.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
font_00_sfnt_off00002cfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CFA 22540 bytes
SHA-256: 27296bdde2c6062189df8859bfe5f61d5589acb36f3cb8022b694e5ad0d7f0c3
font_01_sfnt_off00005f72.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F72 19024 bytes
SHA-256: d4be1e9c2ed5e2701aa56ca33f081751fa4353e044349d275e0b5843832b0fe9