Malicious PDF — malware analysis report

Static analysis result for SHA-256 e102afbad7cbc376…

MALICIOUS

PDF

47.6 KB Created: 2021-06-08 23:35:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7319689afa8fee1d1c506149f4d84610 SHA-1: 7e35aeedd316e054201688721d76407556dca436 SHA-256: e102afbad7cbc376e2f30ba93d055de87a1f6cc5e2cec20e1ef3ef4a5bf2a00b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to a website advertising 'free generators' and 'game hacks', specifically mentioning Robux and Roblox. This is a common lure for phishing or malware distribution. The presence of multiple malicious redirector links and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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 https://netcdn.tw/app/431946152/youtube-how-to-hack-free-robux-game-hack In PDF document text
    • http://berntfoto.dk/images/how-to-use-hacks-on-roblox-deathrun_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox-infinite-jump-hack-2021_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/tiktok-free-anime-websites_GM835599320.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-hack-2021-android-apk_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/cheats-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/how-to-hack-roblox-accounts-for-robux_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-roblox-com_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://berntfoto.dk/images/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/free-robux_GM431946152.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-survival-hacks_GM479516143.pdfIn PDF document text
    • http://berntfoto.dk/images/minecraft-hacked-client-bedrock_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005082.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5082 24940 bytes
SHA-256: c27f209f1472cb7484ae873fd2d3b3ee7df06a9dd6f9210ed181ccf0a9fa1836
font_01_sfnt_off000089de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89DE 3500 bytes
SHA-256: e49a868379cd3c37e631c5a53c010e21f38d803532a2b8417aee82315d4e8634
font_02_sfnt_off0000957f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x957F 18844 bytes
SHA-256: e296592cb622d8084aa7bbf78daf2400b15037ed32bddc2084f78b715f91d69c

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