Malicious PDF — malware analysis report

Static analysis result for SHA-256 74f678a1229aac67…

MALICIOUS

PDF

34.6 KB Created: 2021-07-01 18:18:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f801da8c01be0536ad0d4bb4f7f96105 SHA-1: 55d039253e95b274ef59b7dd266a5f9a7750e853 SHA-256: 74f678a1229aac6764327243592a8af66c5c97456aa3864622a37eaa3647f28a
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for game hacks and free currency, directing users to a known malicious redirector. The embedded URLs and document content strongly suggest a phishing or scam attempt designed to lead users to potentially malicious websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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-robux-2021-envix-game-hack In PDF document text
    • http://lib.mappifhui.org/repository/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/cheat-codes-for-skywars-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-fan_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-survey-and-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/anime-cross-2-roblox-hack_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-candy-id-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-spin-wheel_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-put-hack-script-to-roblox-parkour_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-scams-how-to-stop-them_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/lua-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-phantom-forces-mod-free-weapons_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/robux-free-online_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/roblox-hack-site_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/daily-free-spin-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://lib.mappifhui.org/repository/how-to-get-free-robux-in-roblox-2021-on-computer_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_off00002e40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E40 22532 bytes
SHA-256: 47dc6d776497f0e4eb89dfafcb3f909312ed577d6621b6f43186911f5fc2ba00
font_01_sfnt_off00006076.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6076 19620 bytes
SHA-256: 714a37600c20821bfbeeb9bb32b56f4f1be099c244fdc8e56b5380a11e88b3d6