Malicious PDF — malware analysis report

Static analysis result for SHA-256 e101822f758d8735…

MALICIOUS

PDF

35.0 KB Created: 2021-06-21 15:42:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 867703f6eeec42d3cebe813709dd65ea SHA-1: 66af0b2d7ef66ef4fb345aa0c766fde6402cc482 SHA-256: e101822f758d8735d18a9dd211d5290c1c71fd9a21429656d052b882988d6bd9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, disguised as game hacks and generators. The document body explicitly contains the URL http://netcdn.co/app/431946152/how-to-get-free-vip-on-adopt-me-roblox-game-hack, which is also flagged by heuristics as a malicious redirector lure. The presence of embedded URLs and the nature of the lures suggest an attempt to trick users into visiting potentially harmful sites, likely for credential harvesting or malware delivery.

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/how-to-get-free-vip-on-adopt-me-roblox-game-hack In PDF document text
    • http://precisionheavyhaul.com/images/roblox-bad-business-hack-speedrun_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-roblox-girl-clothes_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/how-to-get-free-robux-gift-cards_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-group_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-phantom-forces-hack-mod-menu_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-apps-that-work_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/how-to-hack-to-get-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-generator-no-surveys-and-no-human-verification_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-generator_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/free-robux-no-survey-no-downloads_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/roblox-kohls-admin-house-hack-script_GM431946152.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • http://precisionheavyhaul.com/images/hacker-minecraft-song_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
font_00_sfnt_off00002e7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E7D 22808 bytes
SHA-256: 7440bbec114ff3db71af0d557852777da6de7dc1ffae98a9ae6a3add4695c30b
font_01_sfnt_off00006196.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6196 19716 bytes
SHA-256: 1e626dd230b7d8db51ed00ecd705a093f90ff8002ec6a624f22ba3442e0d04bf