Malicious PDF — malware analysis report

Static analysis result for SHA-256 e45ae918c73a4019…

MALICIOUS

PDF

46.1 KB Created: 2021-06-09 06:41:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 412a7dbbfb435fdb3c854611772ca218 SHA-1: d46bb48f5ba3db74b9bae439dd24c2eebdb7126a SHA-256: e45ae918c73a4019ce4e984e8e4809b2562eb56e816228c05406f52a63db28e4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, disguised as generators for game hacks and free currency. The document body and extracted URLs strongly suggest a phishing or scam attempt to lure users to malicious websites. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/roblox-jailbreak-hack-2021-download-game-hack In PDF document text
    • http://pacatuamigo.com/images/robux-gift-card-uk-free_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-private-roblox-servers_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-app-free-download_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/pubg-uc-with-easypaisa_GM1330123889.pdfIn PDF document text
    • http://pacatuamigo.com/images/cheats-for-roblox-pokemon_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/hack-xp-net-coin-master_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-100-robux_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
    • http://pacatuamigo.com/images/free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://pacatuamigo.com/images/coin-master-hack-spins-free_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_off00004e3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E3B 28044 bytes
SHA-256: 801e3886c4fc181d303c8d983d25188706c98b4fe357e3baf9578f45db0ffa71
font_01_sfnt_off00008e0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8E0A 19376 bytes
SHA-256: e9766c90f43acb5277ce023a1b34763a6e259bd16fbaebd02d289aecd0f3a5c6

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