Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc5c987d8da7d0c…

MALICIOUS

PDF

42.5 KB Created: 2021-05-16 08:09:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: ebef5b50bd44254a03259af47e776c96 SHA-1: 6c0c30611e75df4bfb3bc12c2d95ad0dc94d9604 SHA-256: cdc5c987d8da7d0c5c9ec6f3db35b8f9b718ff7498e51483733f54864ad65f68
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirectors and potentially malicious infrastructure, disguised as game hacks and free item generators. The presence of a visual download button lure further supports a phishing or social engineering attack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a workflow designed to lead the user to download further malicious content.

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/479516143/minecraft-menu-game-hack In PDF document text
    • http://tasleemdubai.com/userfiles/files/worst-client_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/claim-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-to-village-3-in-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-intros_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/links-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/robux-get-com_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://tasleemdubai.com/userfiles/files/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • https://playhack.in/minecraftIn 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
stream_003_off00004d4f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D4F 25028 bytes
SHA-256: ce3eebae274979176d55a9ff940d9b74623b0eaf89e018b702fe84bb89d9ba1f
font_01_sfnt_off000085a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85A7 17708 bytes
SHA-256: 679a1d8f76460a115219f4f15c6f17ac3f2059c2b9f5df8a51dcf2988abe9cc5

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