Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7892eac49e0a31a…

MALICIOUS

PDF

34.9 KB Created: 2021-06-25 12:03:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: bfe97e81550ae953df6a9f953eeabba6 SHA-1: 1c90228229051ca555ae72df53f8077ab3b182b9 SHA-256: d7892eac49e0a31abd2f51176d6d095af7b51e2a80368d0ac1515a234562df1a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency' lures. The primary link, http://netcdn.co/app/431946152/get-a-free-ps-on-roblox-jailbreak-game-hack, is identified as a malicious redirector. This suggests the document is part of a phishing or scam campaign designed to trick users into visiting potentially harmful sites.

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.co/app/431946152/get-a-free-ps-on-roblox-jailbreak-game-hack In PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/pastebin-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-tricks-and-hacks_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-unlimited-spin-hack-mod-apk_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-to-get-unlimited_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-robux-2021_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/claim-gg-earn-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/2021-free-promo-codes-robloxyoutube_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/coin-master-free-soins_GM406889139.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/codes-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-minecraft-skins-xbox-one_GM479516143.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021-october_GM431946152.pdfIn PDF document text
    • https://elearning.nurulhuda.sch.id/__statics/gudangsoal/files/robux-plus-hack_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F99 22864 bytes
SHA-256: 6e6d5a233f8b087c82baf713c196a1bf43bc625ad31e9a58a62f7043a88c37b3
font_01_sfnt_off0000627c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627C 19364 bytes
SHA-256: e99460b5322e95247e892f61114058e41fd6737533dafe235ef441cdb13401bc

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