Malicious PDF — malware analysis report

Static analysis result for SHA-256 746c6ebfcfa1fab8…

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 01:26:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 977f2e899a90c6af6bd117c4c120e251 SHA-1: 7815c52df437437f7957d87a6dea78c9cf27ff04 SHA-256: 746c6ebfcfa1fab8c319b4bfaadd90453adcd48d250665a1a67062c25183db26
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free currency'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' and 'PDF_MALICIOUS_REDIRECTOR_LINK' strongly indicate a phishing or scam attempt. The ML classifier also flagged this PDF as malicious. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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/hack-any-account-in-roblox-game-hack In PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-prison-life-hack-mobile_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-project-jojo-hack_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/cool-roblox-avatar-free_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-robux-thumbnail_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/easy-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/earn-free-robux-today_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-tiktok-fans-without-human-verification_GM835599320.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-hack-2021_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-account-cookie_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-without-robot-verification_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/coin-master-free-spins-link-2021-haktuts_GM406889139.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/how-to-hack-roblox-accounts-with-pastebin_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-change-robux-pastebin-hack_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/roblox-cheats-club_GM431946152.pdfIn PDF document text
    • http://opac.akafarma-aceh.ac.id/repository/free-spins-coin-master-links-no-human-verification_GM406889139.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_off0000306f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x306F 21164 bytes
SHA-256: 01476e9b6f18d54afef72817d4dd04227062615c22e84819904791864faca367
font_01_sfnt_off00005e8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E8A 19080 bytes
SHA-256: 4cbe549fb35a6bf55db50be3c67d19b03ce7ca8918a71d8cf9500135daeced32

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