Malicious PDF — malware analysis report

Static analysis result for SHA-256 e068c27086c71d54…

MALICIOUS

PDF

41.9 KB Created: 2021-05-16 03:26:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: bfead486995f9cd0fe2f4bbe1b9bc652 SHA-1: 2fe0b33063c9affb695cb4f11c8eda7da5c2e384 SHA-256: e068c27086c71d548c6ae9012d91f736d13a8b7f80e3c39296c0590f358dbe0b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, masquerading as a "Coin Master Hack" generator. The presence of a visual download button and the document body text further reinforce the lure. The embedded URLs likely lead to further malicious content or malware downloads, indicating a phishing or social engineering attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/coin-master-hack-version-download-2021-game-hack In PDF document text
    • http://glll.de/images/i-need-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://glll.de/images/free-spins-for-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://glll.de/images/hack-free-spin-coin-master_GM406889139.pdfIn PDF document text
    • http://glll.de/images/scary-larry-roblox_GM431946152.pdfIn PDF document text
    • http://glll.de/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://glll.de/images/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://glll.de/images/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://glll.de/images/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • http://glll.de/images/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://glll.de/images/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://glll.de/images/roblox-rewards_GM431946152.pdfIn PDF document text
    • http://glll.de/images/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
    • http://glll.de/images/orewards-com-free-robux_GM431946152.pdfIn PDF document text
    • http://glll.de/images/coin-master-free-spins-daily-1-ga_GM406889139.pdfIn PDF document text
    • http://glll.de/images/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://glll.de/images/blox-pink-robux-free_GM431946152.pdfIn PDF document text
    • http://glll.de/images/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://glll.de/images/hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://glll.de/images/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
    • http://glll.de/images/free-spin-app-for-coin-master_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
stream_003_off000046ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x46EC 24992 bytes
SHA-256: d4747aa7fe2a629a6db164bc9a4b005cf62fada110d29ba04bedf7288ec6b7a8
font_01_sfnt_off00007fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FA1 18832 bytes
SHA-256: 10a49c8f5e0c2228bf8891dcd296cb3cf64f302ec606424858ebb68f2fddb877