PDF malware analysis — malicious · ac1860c09b355fe9

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 11:48:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07

MD5: 827bfd62ed0831c2283fea4546a4f2ae SHA-1: 24bdd23512710a83bba930b6519af693469b32bd SHA-256: ac1860c09b355fe9d80171fcf6cfa85616b9347321a0c289d360e0e50f702d2f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game hacks and currency, directing users to external URLs. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted from this sample, but the overall pattern indicates a likely attempt to trick users into downloading malicious content.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

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.
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 http://netcdn.tw/app/479516143/minecraft-java-edition-download-free-game-hack PDF link annotation
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-roblox-bc-card-codes_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/robuxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/como-tener-free-robux-en-roblox_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/apk-coin-master-hack_GM406889139.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/pastebin-roblox-free-obc_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-robux-videos_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-minecraft-website_GM479516143.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-roblox-hack-link_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-robux-using-chrome_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/minecraft-bedrock-edition-pc-download-free_GM479516143.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-draw-roblox_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-robux-codews_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- https://jogjaindotrans.com/ckfinder/userfiles/files/free-coin-master-cards_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.

Filename	Kind	Source	Size
`font_00_sfnt_off00003075.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3075	22484 bytes
SHA-256: `2dc8fe629a792dee06e6f388c7bcc3a73c978d9ad422f9d090c5dd9e1bdccc68`
`font_01_sfnt_off0000619e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x619E	18856 bytes
SHA-256: `5b5dffd1801a7646d4903e54774a45840ad7d6456fb30c9e0aec91f174fc5586`

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