PDF malware analysis — malicious · 0226da6a5b4ea95c

MALICIOUS

PDF

44.2 KB Created: 2021-06-03 15:29:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: b1b06b433863c10132c3ab97479ef6e0 SHA-1: eca232564e00e26800a7e0e0f47a58671964e316 SHA-256: 0226da6a5b4ea95cf6d277fbc4c6bbab831cf26329f527eaed17098bc8df72fb

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are structured as a link farm for SEO purposes, suggesting a malicious intent to drive traffic to potentially harmful content. The document body and extracted URLs indicate a lure related to game cheats and hacks, a common social engineering tactic. While no scripts were explicitly extracted, the PDF structure and the presence of external links are indicative of a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/how-to-win-attack-madness-in-coin-master-hack-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/pubg-600-uc-redeem-code_GM1330123889.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robux-today_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-tiktok-likes-no-human-verification-or-download_GM835599320.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-cards-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-35-13-hack-download_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
`stream_004_off0000529a.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x529A	24788 bytes
SHA-256: `5baad7f5918611c98e41b151f83288f72dbc047ce2874f208faa28e1cf8a5949`
`font_01_sfnt_off00008a2b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A2B	18252 bytes
SHA-256: `ebc75091247f42f4d8f6f5328204ee4b219dff7698097371fec03a0e52319ffd`

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