Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b769dfaa73d74f9…

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 06:02:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d56563326b5f736fb5a08ed12d2f5266 SHA-1: bad25df0db182bbd1f9f60104e09e6d530fef538 SHA-256: 7b769dfaa73d74f987b269a4c0807f01373eba3ddb10fdff425eab3aa45d746f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to known malicious infrastructure, specifically promoting game hacks and generators. The document body and extracted URLs suggest a lure for users seeking in-game advantages, which is a common social engineering tactic. No scripts were extracted, but the presence of malicious redirectors and the lure indicate a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/406889139/coin-master-free-spins-hacktman-game-hack In PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/coin-master-hack-tool-no-human-verification_GM406889139.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/is-roblox-virus-free_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-welcome-to-bloxburg-money-cheats_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-cheat-robux-generator-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-jailbreak-hack-2021-april_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-robux-hack-website_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/minecraft-pocket-edition-apk-free-download_GM479516143.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-hack-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-assassin-hacks-2021_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-creag_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/free-roblox-followers_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/roblox-hacks-and-cheats_GM431946152.pdfIn PDF document text
    • https://elearningmts.mapersis31banjaran.sch.id/__statics/gudangsoal/files/robux-rewards_GM431946152.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_off0000314f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x314F 22816 bytes
SHA-256: 69f2c4a04fb8ae529b89785d06c0ae931a0245c69be59ecb1b0e64b27e9395dd
font_01_sfnt_off00006496.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6496 18604 bytes
SHA-256: 4bdfeca594628802d69067d6b2f20385009c2d8f96afc7f272a39be84923808b

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