PDF malware analysis — malicious · fd590c3a9d79043b

MALICIOUS

PDF

38.7 KB Created: 2020-08-21 00:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 64ad634c3ba4b95ae5f81e0f0dd7415d SHA-1: 7b6edafdbde5430c0201ce91d1d6057e5691d258 SHA-256: fd590c3a9d79043b3458ad36a40938b1521773e7dee3981a6434e2014eb2f43d

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a link to a known malicious redirector, ttraff.com, which is designed to lead users to malicious content. The document body, though partially corrupted, contains text related to factoring trinomials and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of a link farm further indicates a malicious intent to distribute content via multiple external links.

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=worksheet+factoring+trinomials+answers+key+algebra+1
- http://files.samuelfort.com/uploads/1/3/0/8/130813972/b2634e9ee22.pdf
- http://files.mrsstoddardsiewclasses.com/uploads/1/3/1/4/131437657/1677181.pdf
- http://xipamixe.theedgeofthemap.net/uploads/1/3/0/7/130776257/5931ebc6ae.pdf
- http://zodajeme.lynbrookels.com/uploads/1/3/2/8/132816042/f5806bd54642bda.pdf
- https://cdn.shopify.com/s/files/1/0438/1884/4322/files/6179018144.pdf
- https://cdn.shopify.com/s/files/1/0430/4669/9165/files/85975266787.pdf
- https://cdn.shopify.com/s/files/1/0428/5834/8700/files/14139304601.pdf
- https://cdn.shopify.com/s/files/1/0435/8720/7331/files/jejuredaputajakibeli.pdf
- https://cdn.shopify.com/s/files/1/0444/5339/6647/files/82110386086.pdf
- https://cdn.shopify.com/s/files/1/0435/4555/9189/files/93902569712.pdf
- https://cdn.shopify.com/s/files/1/0432/2269/6098/files/gebevoxalavegerowirexu.pdf
- https://cdn.shopify.com/s/files/1/0447/5600/9111/files/conduct_disorder_checklist.pdf
- https://cdn.shopify.com/s/files/1/0431/9602/2933/files/nowatibopowi.pdf
- https://cdn.shopify.com/s/files/1/0438/8909/8907/files/1332749620.pdf
- https://cdn.shopify.com/s/files/1/0429/6579/4965/files/dotowafubolakadisim.pdf
- https://cdn.shopify.com/s/files/1/0429/6785/9359/files/sewing_machine_parts_crossword_puzzle_answers.pdf
- https://cdn.shopify.com/s/files/1/0434/0128/1703/files/the_good_fight_season_4_episode_guide.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005796.bin` `e893559311ceb062f74b52d56658c57f82e9e93fa53e24e4b6391881e2fec54f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5796	5760 bytes
`font_01_sfnt_off00006b35.bin` `3800a048b914954c32a41952dc17b5355b6efe1742706a84df6bcce4c28fdb99`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6B35	9936 bytes

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