Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd47e26e4a893b1…

MALICIOUS

PDF

45.8 KB Created: 2021-05-19 06:37:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-08-25
MD5: 8b0f86529a1f9258b83ec125f33d0d86 SHA-1: a8f853cdff9def64d0bc3da038f1d85be0256430 SHA-256: 8dd47e26e4a893b1c0f178d67687f70bf86f966b470637e393a915492951a7ed
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, masquerading as game hacks and generators. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting malicious sites. While no scripts were explicitly extracted, the PDF structure and heuristic firings indicate malicious intent, likely leading to further payload delivery or phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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-tool-pc-game-hack In PDF document text
    • https://kinderdam.nl/images/robux-app_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-mod-free-download_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/completed-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/coin-master-online-free-spin_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/wurst-hacked-client_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/www-free-robux_GM431946152.pdfIn PDF document text
    • https://kinderdam.nl/images/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://kinderdam.nl/images/minecraft-114-4-download_GM479516143.pdfIn PDF document text
    • https://kinderdam.nl/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004999.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4999 27604 bytes
SHA-256: b5dadd8f0f9b98c71d86f640fc47e7d182129e4e9f8e0b16709f13eabf6a1e8d
font_01_sfnt_off0000880d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x880D 2812 bytes
SHA-256: fc92a80cefddbcc51cb4ecd7284aa73b746cbd66adcf1d96110f0323ec06b51f
font_02_sfnt_off000091ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91AE 17944 bytes
SHA-256: 870be5fa8cdab07c7616bfe00b6301e304862008d7cbda7089515cafcebcc899

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