PDF malware analysis — malicious · 32379880c710cca9

MALICIOUS

PDF

45.6 KB Created: 2020-08-06 11:55:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 49a41a2be1ba5f4795dacb65633a1059 SHA-1: 798169f8f292eb9ad88b77fac9acac1da81334c2 SHA-256: 32379880c710cca93198dbc835ad80756cf2947f84436ffe4f6202576939e0f7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains multiple embedded links, with one critical heuristic identifying it as a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a 'color blindness test book pdf'. This URL redirects to `https://ttraff.com/pify?keyword=color+blindness+test+book+pdf`, which is flagged as malicious. The file also contains a large number of other PDF links, suggesting a link farm or SEO poisoning tactic.

Heuristics 3

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.
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.
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://ttraff.com/pify?keyword=color+blindness+test+book+pdf
- http://files.tiffanycrowhurst.com/uploads/1/3/0/7/130739318/robinukulowu_rolilepajagizu.pdf
- http://files.neurosportchiropractic.com/uploads/1/3/1/4/131413905/e2e081239da1f.pdf
- http://files.bereanwest.com/uploads/1/3/1/8/131871439/c534ceb34.pdf
- http://fedivajal.rocoveryfitness.org/uploads/1/3/1/4/131437987/gupovusagokinokul.pdf
- https://cdn.shopify.com/s/files/1/0433/8896/0933/files/fexujaraduvibin.pdf
- https://cdn.shopify.com/s/files/1/0436/3055/9390/files/sidonirugenifuxe.pdf
- https://cdn.shopify.com/s/files/1/0432/4874/6651/files/wenexepojegutetoteta.pdf
- https://cdn.shopify.com/s/files/1/0432/6712/9504/files/26860453397.pdf
- https://cdn.shopify.com/s/files/1/0430/1262/0447/files/30905489217.pdf
- https://cdn.shopify.com/s/files/1/0439/7082/2302/files/features_of_globalisation.pdf
- https://cdn.shopify.com/s/files/1/0429/2424/5155/files/wubirobimade.pdf
- https://cdn.shopify.com/s/files/1/0435/0171/5622/files/guitar_for_beginners_chords.pdf
- https://cdn.shopify.com/s/files/1/0437/5196/4830/files/74424527737.pdf
- https://cdn.shopify.com/s/files/1/0431/2449/0397/files/17503798217.pdf
- https://cdn.shopify.com/s/files/1/0433/9993/8211/files/wusinuvagozoves.pdf
- https://cdn.shopify.com/s/files/1/0431/0604/2023/files/fewefer.pdf
- https://cdn.shopify.com/s/files/1/0431/7410/1160/files/76383354760.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- https://cdn.shopify.com/s/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000075d7.bin` `bb049de203aca0cd4b9ee0b8bf9fba60bab0b9ba40faf1cfe317581245b09df8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x75D7	4932 bytes
`font_01_sfnt_off000086a4.bin` `8f0386789e71a9c35b62dc8514419f7f11a29c0a727ca0863da63b633c16df24`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86A4	10096 bytes

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