Malicious PDF — malware analysis report

Static analysis result for SHA-256 5069c9c3d2306868…

MALICIOUS

PDF

32.9 KB Created: 2021-06-18 06:21:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 9039fe0dc6ead8c50fdf66851107e7bf SHA-1: 889b2e359ddd9df851561cf3b73b74b9e6a6ca79 SHA-256: 5069c9c3d2306868c4e7e63639d1bdcbe1d455cf2f509342e027206e65928278
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, disguised as 'free generators' and 'hacks' for popular games. The document body and extracted URLs strongly suggest a phishing or scam attempt to lure users to malicious websites. No scripts were extracted, but the presence of malicious links and the lure content indicate a high likelihood of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/battle-royale-hacks-jailbreak-roblox-game-hack In PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-account-cracker-free_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-codes_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-roblox-codes-2021-november_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/roblox-murder-mystery-2-knife-hack_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/no-download-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/fb-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/free-robux-videos_GM431946152.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
    • http://www.library.gkigadingserpong.org/repository/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • http://library.gkigadingserpong.org/repository/wwwcoin-master-hack-game-download_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_off00002a20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A20 22276 bytes
SHA-256: 774f6433678122c8eb50ddda3688edbe56a8989fa3a41f8993fd0c460ea9bcfa
font_01_sfnt_off00005b4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B4A 19228 bytes
SHA-256: 974bc24b6c4b27b4a2f28832a4fcfb6e3af967db33a075c359054f89e6272f35

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