PDF malware analysis — malicious · d50d677e728008d6

MALICIOUS

PDF

42.2 KB Created: 2020-08-10 10:24:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: a6ee999b805874b5c88d8dfd5dcf8e7a SHA-1: 5bdcfc21a3b5ec281a738ce122f87a1c6b4e3239 SHA-256: d50d677e728008d6c67fbc180e682e32250d7a6d4eea518b2219e3f50d72d69c

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=attitude+measurement+scale+pdf', suggesting a lure to disguise malicious activity. The presence of numerous external links and a malicious redirector indicates a likely attempt to lead the user to a phishing or malware distribution site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=attitude+measurement+scale+pdf
- http://files.seryklee.com/uploads/1/3/2/8/132815008/rodowadivarajodub.pdf
- http://files.clevelandchamberchoir.org/uploads/1/3/0/7/130775653/nunuguzagira-godirizija-boruvuvafe.pdf
- http://penebepam.kidsdollarstuff.com/uploads/1/3/0/8/130813765/jilasali-baminog-wazuzesotedat-wijelelowuj.pdf
- http://files.bumblecampers.com/uploads/1/3/2/6/132695568/a10a3135.pdf
- https://cdn.shopify.com/s/files/1/0435/7698/3713/files/sawilipazepev.pdf
- https://cdn.shopify.com/s/files/1/0428/4389/8019/files/1490936185.pdf
- https://cdn.shopify.com/s/files/1/0438/1055/4013/files/detailed_lesson_plan_in_english_grade_1_nouns.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87277754858.pdf
- https://cdn.shopify.com/s/files/1/0431/2737/3986/files/21389001038.pdf
- https://cdn.shopify.com/s/files/1/0431/5129/4628/files/cs_go_crosshair.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12091312038.pdf
- https://cdn.shopify.com/s/files/1/0434/9722/6402/files/jowepesidelolamosebi.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29480145432.pdf
- https://cdn.shopify.com/s/files/1/0430/8028/6372/files/12902002919.pdf
- https://cdn.shopify.com/s/files/1/0433/7952/3751/files/76017779416.pdf
- https://cdn.shopify.com/s/files/1/0441/1287/1576/files/weder.pdf
- https://cdn.shopify.com/s/files/1/0432/0460/8155/files/15249754045.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_off000067d8.bin` `f764e5c51d99933484c777f25f3b6b82fa52e2e3240a01967754297971123cf4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67D8	5288 bytes
`font_01_sfnt_off000079ba.bin` `0bf3243ef0eaf05fb49131b2cde008f5fc8055ecf6b2d08016772c085e999519`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x79BA	10004 bytes

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