Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2c4d152b1511c8b…

MALICIOUS

PDF

42.7 KB Created: 2021-05-10 15:21:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: f40f7ce051d388e1755a1ba0bd613a79 SHA-1: e6e07b8fdc79211a633afdd9c951d4b31779ec2d SHA-256: f2c4d152b1511c8b97f7120e55ec04f2750d414f1a1d74351454c0048277bbaf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and embedded links suggest a lure for game-related cheats or hacks, aiming to trick users into visiting potentially harmful sites. No scripts were extracted, but the presence of malicious links and the lure indicate a phishing or social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/descargar-coin-master-hackeado-game-hack In PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-coin-master-spins-without-human-verification_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/roblox-character-free_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-executor-roblox_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-chest-coin-master_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-robux-mobile_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-robux-hack_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/robuxglobalcom-no-verification_GM431946152.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • http://belajar.kurman1kotasemarang.com/__statics/gudangsoal/files/get-free-minecraft-account_GM479516143.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_off00004c71.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C71 24956 bytes
SHA-256: a941f340d649145282c06bc3bf1f9d16705e4b44dbd22ba539067cdaf8eb628f
font_01_sfnt_off00008458.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8458 18344 bytes
SHA-256: f36247ffb38554f38145ddbd5964f7161795fb102c5bcaad17a29f5e2fd4ae9a

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