Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d48b18844d44b6c…

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 16:59:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ce7705dbde1bf706934b12fa679ca4f8 SHA-1: c8fdb166a31ae3420e00d383371319da887d3885 SHA-256: 0d48b18844d44b6c2d935bcbc50f9d9acf156049fe17ac0ce08a7d151f68a6b8
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically advertising free game hacks and generators. The primary lure URL is http://netcdn.tw/app/431946152/roblox-help-free-robux-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting these sites, likely leading to further malware downloads or credential harvesting.

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/431946152/roblox-help-free-robux-game-hack In PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/dragon-ball-after-future-roblox-hack_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-robux-group_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/roblox-how-to-get-clothes-for-free_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/minecraft-xbox-free_GM479516143.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/coin-master-cheat-codes_GM406889139.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/roblox-free-download-unblocked_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/robux-codes-for-free-youtube_GM431946152.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.man5kediri.sch.id/__statics/gudangsoal/files/free-robux-2021_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_off00003500.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3500 22536 bytes
SHA-256: c6a52b94dc2ffa9f135ccabeaf82d9781cf3b23ef3fa8b8eba5373f2b538553f
font_01_sfnt_off0000672f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x672F 18968 bytes
SHA-256: e6d3133e218776b7d87035f377c26f4245cc7a54287827524eb781a63c565006

Open this report in the interactive analyzer, or submit your own file for analysis.