Malicious PDF — malware analysis report

Static analysis result for SHA-256 5583209682b8d094…

MALICIOUS

PDF

34.1 KB Created: 2021-06-19 10:52:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: b7fa13f952f665164e0d6e98fb5ec8a0 SHA-1: 2a1c0913c16b599428072872f677ca447fb02e9a SHA-256: 5583209682b8d094cfd5a5b8fd076f411a5a5e574c333680fb0ab3633151b5d2
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The primary lure is the URL http://netcdn.co/app/431946152/free-alts-roblox-game-hack, which is associated with known malicious redirectors. The document's content and embedded links strongly suggest a phishing or scam attempt to trick users into visiting potentially harmful sites.

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/free-alts-roblox-game-hack In PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/unlimited-robux-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/www-free-robux-com_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/robux-hack-me_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/muscle-roblox-manequin-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/advhaa-roblox-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/roblox-hack-club-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/fb-coin-master_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-2021-robux_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/how-to-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/minecraft-pocket-edition-free_GM479516143.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robloxcom-robluks-for-free_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/hacking-tools-roblox-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7/repository/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
    • http://opac.salatiga.go.id/slims7//repository/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f7d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F7D 22308 bytes
SHA-256: 4b10ab222c85af22efcfb8e70cb497695a20cec07b5e3617ba338495e357757e
font_01_sfnt_off00006107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6107 18752 bytes
SHA-256: 3a8ba1233f594a76aeb7e0c69c0b69e66f872d995f23cd83194508b5c95b512e

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