Malicious PDF — malware analysis report

Static analysis result for SHA-256 d806a96dc88fb7e7…

MALICIOUS

PDF

33.0 KB Created: 2021-07-08 21:25:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ce38ce1f37d3f7c42f72bda031f32e2c SHA-1: 0e086fb2da100367f498fda5fc3b2aa66f826138 SHA-256: d806a96dc88fb7e7dd787a6583262c2a4f513314a3307975067238f7373d2ce0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and generators to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts further malicious PDF files. The document body and embedded URLs strongly suggest a phishing or scam campaign aimed at users seeking in-game advantages.

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-pe-free-game-hack In PDF document text
    • https://encounternepal.com/userfiles/files/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-mod_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-hack-club_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/haktuts-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-one-punch-man-cheat-engin_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-generator_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spin-realme-products_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-robux-generator-2021-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/how-to-get-free-robux-hack-on-laptop_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/pokemon-go-free-play_GM1094591345.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/rbx-claim_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://encounternepal.com/userfiles/files/free-spins-coin-master-app_GM406889139.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_off00002f8c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8C 21672 bytes
SHA-256: 6dd33d10789251fbd1910413171f71d1988ec690ee25d1ef74ccee50d0cc35ec
font_01_sfnt_off00005f13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F13 18008 bytes
SHA-256: 7b53852c349be1bc084196235092269a717ad06b6af355bc11c1fdb457e3227a

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