Malicious PDF — malware analysis report

Static analysis result for SHA-256 c14f4d1954412ffe…

MALICIOUS

PDF

34.7 KB Created: 2021-06-30 01:12:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c5ff6b3f75f76af4cd0a38fc624144a7 SHA-1: daedc7cb02367d0b4dfecede662094baec70fd1c SHA-256: c14f4d1954412ffe6bd82827ee27cde2f375fd6ab84ae0b54c6546378493c0b0
220 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game hacks and currency to trick users into clicking malicious links. It contains numerous links to redirectors and link farms, including one specifically identified as malicious infrastructure. The document body and heuristics indicate a scam designed to lead users to potentially harmful content or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/free-modded-legs-download-roblox-game-hack In PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/roblox-six-pack-t-shirt-free_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/invisible-hack-roblox-prison-life-withe-cheat-engine_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/is-minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/treelands-roblox-free_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/roblox-hacks-2021-mobile_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-roblox-gift-cards-2021_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/guess-that-song-roblox-cheat-sheet_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-gamepass-in-any-games-roblox_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-without-having-to-download-anything_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/free-robux-generator-for-kids-no-password-nosurveys_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/did-roblox-add-an-anti-cheat_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/how-to-code-free-robux_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/all-free-for-catalog-roblox-pastebin_GM431946152.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://sistem.amikomsolo.ac.id/perpus/repository/coin-master-free-spins-2021-haktuts_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_off000031a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A6 21832 bytes
SHA-256: a7cff85e17e45599104c4a0cabac122f39454a053adc533c5df34bcd599604e9
font_01_sfnt_off000061a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A1 19352 bytes
SHA-256: 42b9dbc3ac2f413c2b60adb545d57318c8e8eb69e2fcf7f1b4f462a93d514fa0

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