Malicious PDF — malware analysis report

Static analysis result for SHA-256 c07992528aaad8b8…

MALICIOUS

PDF

33.9 KB Created: 2021-07-04 19:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 1ed59ee0c0fbe16777dd5f911c3a5f5c SHA-1: b00700f9ee77ea752561440d5a3e989d3590b481 SHA-256: c07992528aaad8b886e7b0aef5e8e026d0366b9e22f7743329461b3f79746004
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appear to be game hack generators or free currency sites. The primary link redirects to malicious infrastructure, indicating a phishing or scam attempt. The document body and embedded URLs strongly suggest a social engineering tactic to trick users into visiting potentially harmful websites.

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.tw/app/431946152/roblox-sign-in-free-game-hack In PDF document text
    • http://www.digilib.uim.ac.id/repository/roblox-free-draw-script_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/robux-for-surveys_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/earnrobux_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/try-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/how-to-change-username-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
    • http://www.digilib.uim.ac.id/repository/how-to-play-a-game-that-cost-robux-free_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/i-want-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
    • http://digilib.uim.ac.id/repository/free-cool-robux_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
stream_002_off00002db0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2DB0 22632 bytes
SHA-256: 4dfe1efaf926ba5b2b30f7644924b55b306d5e2edbc92ffddfebf43c379113ce
font_01_sfnt_off00006030.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6030 18768 bytes
SHA-256: 3ab6c6070bd7305523799bfbbbd7e2cf94c32bd360863863c53c92dc8f43febe

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