PDF malware analysis — malicious · 2f12a2f3526f7ace

MALICIOUS

PDF

34.8 KB Created: 2021-06-18 12:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16

MD5: 3238def2320ed4b0ba5a3d98f8f6893c SHA-1: ded20e47f7a46ffc3e40237bfee05accd953ee6c SHA-256: 2f12a2f3526f7ace709101c6df028d2ed30df88ca22e1902df0367f354d2dba5

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which point to other PDF files hosted on the same domain, suggesting a link farm designed to attract users searching for game-related cheats and currency. The presence of a direct download URL and the overall structure strongly indicate a malicious intent to deliver potentially harmful content. No scripts were extracted, but the PDF's structure and embedded links are indicative of a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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.co/app/431946152/admib-free-roblox-game-hack PDF link annotation
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-minecraft-alts_GM479516143.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/hack-coin-master-free_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/easy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-get-a-refund-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-spins-on-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://irecruitersafrica.com/ckfinder/userfiles/files/free-robux-no-human-verification-2021_GM431946152.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_off00002f1c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F1C	23060 bytes
SHA-256: `b4ce332eaf78385d70bd701b06b8c9f5083900325fdc95d2bbecd6750ceb91ff`
`font_01_sfnt_off000062d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62D0	19204 bytes
SHA-256: `96eca531fb27a85408d91fb5ace31c8eb68627ceb6a14c8d5f090fb7c7538e86`

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