Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ecab9ad1f798b28…

MALICIOUS

PDF

34.7 KB Created: 2021-06-27 23:57:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: ce0418fe1bfeadd91881fda70ea6ba4e SHA-1: a745bdf3f4363de0c915aaf145a00d5342658bcd SHA-256: 5ecab9ad1f798b28f66c2a6b23b2e0ac48a80afb6f02c717e50f76f5c2ede26b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators'. The primary lure URL is http://netcdn.co/app/431946152/how-to-hack-roblox-on-iphone-6-game-hack. This indicates a social engineering tactic to trick users into visiting potentially harmful sites. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or scam attempt.

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-hack-roblox-on-iphone-6-game-hack In PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/oprewards-com-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/rbx-land-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/button-clicker-for-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-generator-mac_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-paid-roblox-guis_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/todays-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-hack-pc_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/coin-master-free-spins-link-today-twitter_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/bloxpage-free-robux_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/minecraft-pe-016-0-apk-download-free_GM479516143.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/free-robux-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-hack-roblox-accounts-easy-2021_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/static-moonactive-net-rewards-2021_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-role-in-coin-master_GM406889139.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/free-robux-ml_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id/repository/how-to-hack-into-your-own-roblox-account_GM431946152.pdfIn PDF document text
    • http://pustakafpsi.uin-suska.ac.id//repository/how-to-get-free-items-on-roblox_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_off00003049.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3049 22164 bytes
SHA-256: 7df6e253e07d16811c96d3b91e69d880d3d3f99bbad6e10fd8e4885dd0c6326d
font_01_sfnt_off00006184.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6184 19332 bytes
SHA-256: 8d78816e5bcc42c466d922842abd4b4daaf004a79e2d0e1179336bfdc8d20a1d

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