Malicious PDF — malware analysis report

Static analysis result for SHA-256 02f41af813873464…

MALICIOUS

PDF

33.7 KB Created: 2021-07-05 03:41:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 2c975403b778dae9ced074ee6717c9cd SHA-1: d090fd74a0192e66f8206d4f53d16251a9a93501 SHA-256: 02f41af813873464ab1f72f035a096bee40db73bbadb7fa31f246fe47056e6ad
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a known malicious domain, masquerading as a generator for game hacks. The heuristic firings indicate the PDF is designed to lure users with promises of free game hacks, a common social engineering tactic. While no scripts were explicitly extracted, the nature of the redirect and the lure suggests an attempt to download or lead the user to a malicious payload.

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/479516143/minecraft-hacks-ps4-game-hack In PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/hack-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/can-you-geet-banned-for-using-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/robux-quiz-free_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/pubg-uc-app-download_GM1330123889.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-roblox-2021-rich-accounts-logins_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/how-to-get-free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-accounts-roblox-2021-september-2021-live_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-spins-coin-master-android_GM406889139.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-without-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/robux-earner_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id//repository/youtube-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-avatar-free-girl_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-maker_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/free-robux-codes-generator_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • https://katalog.smkn1glagah.sch.id/repository/roblox-how-to-get-bloxburg-for-free_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_off00002ff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF7 22228 bytes
SHA-256: f25db65f780088924d1859f256106f4f9bd1b4415ac473b16e7a943bc6944aad
font_01_sfnt_off00006151.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 18240 bytes
SHA-256: b4f73002f18e81855a006ce18e0825fb4920a9dbc57326b79a3de6e9c2cfa2d9

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