Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2b7865fce93da01…

MALICIOUS

PDF

36.4 KB Created: 2021-06-29 18:23:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 41d1a38dd9502c345de7ba6ebb1c92eb SHA-1: 2c04d695f623a19b59d6822030cbf3c0baf62b65 SHA-256: c2b7865fce93da01c4813ada430cc3a4ef5d9a484525e4ce7e8fbb7eb1b7e397
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to websites offering 'game hacks' or 'free generators', a common lure for phishing or malware distribution. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely to download a second-stage payload. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into clicking through to potentially harmful content.

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-someones-roblox-account-2021-game-hack In PDF document text
    • http://gts.edu.gh/library/repository/how-do-you-hack-peoples-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-review_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-hacks-in-roblox-no-scam_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-realms-free-codes_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-download-free-microsoft_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-often-pokemon-go-free-download_GM1094591345.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-rescources-no-download-or-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-codes-2021-march_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hat-free-roblox_GM431946152.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_off000033c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33C5 22944 bytes
SHA-256: 44ee615b52cefcda93c19a22c072e8661a36c803cb099ee913c2d44d11e192f5
font_01_sfnt_off00006736.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6736 19724 bytes
SHA-256: f50c412bcfe1d1f98486a75b2c7138549e2bea37deae9173a274dae717afecb9

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