Malicious PDF — malware analysis report

Static analysis result for SHA-256 7c9c6faccebe746a…

MALICIOUS

PDF

42.7 KB Created: 2021-05-12 04:01:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 1abc9befd80f39a012a184c9b789c710 SHA-1: 97248c4e7d572c9704b5a6db58abfb4d9b47acc7 SHA-256: 7c9c6faccebe746a6f857e5966dc9dde8f4e23f8d3d2a18fa853837e3818c23f
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

This PDF document was flagged as malicious by an ML classifier. It uses a ClickFix paste-and-run lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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-free-download-mac-full-version-game-hack PDF link annotation
    • http://kirikkalesmmmo.org.tr/images/roblox-hacked-version_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/coin-master-link_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/how-to-get-free-spins-grom-coin-master_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/minecraft-hack-ios_GM479516143.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/coin-master-hack-download_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-pe_GM479516143.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/how-to-hack-coin-master-spin_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-robux-groups-2021_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://kirikkalesmmmo.org.tr/images/free-spins-coin-master-links-2021_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_off00004ba6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BA6 24864 bytes
SHA-256: 475698252dd76c876f5a0a431ec9b0e87fff4b29d5f5efe954f8708e6c9257e9
font_01_sfnt_off000083c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83C1 18564 bytes
SHA-256: 574dcfe716694b9e694caafd459ab3045eb2e03b00ed18be0723273a3324c3f2

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