PDF malware analysis — malicious · da15f63bc0717a98

MALICIOUS

PDF

48.1 KB Created: 2020-08-08 18:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 660ad5bac38d163656e93d2e2bfca184 SHA-1: a0e58c5ddca6e3d5fb6a7a0ba16cb50d899a26f3 SHA-256: da15f63bc0717a98c379cf3c1ee532a41a40afcc826f11994a4a75f69c1f5903

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of external links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is likely the primary malicious payload delivery mechanism. The document body, though heavily obfuscated, contains the URL that triggered the redirector heuristic, indicating a social engineering lure.

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.cc/pify?keyword=assembly+language+pdf+step+by+step
- http://files.tresasbridal.com/uploads/1/3/1/6/131637325/mavesafesuto-judebafetuser-bikix-newasewuduse.pdf
- http://files.triplex-arrow.com/uploads/1/3/0/8/130874010/lifokoko_bikobimemi_guvemi_zanebarotef.pdf
- http://files.thewaxball.com/uploads/1/3/1/8/131856567/4101066.pdf
- http://files.mainstreetmusiclessons.com/uploads/1/3/0/9/130969356/3a3d8220d4f6b.pdf
- https://cdn.shopify.com/s/files/1/0429/8221/1733/files/26302656355.pdf
- https://cdn.shopify.com/s/files/1/0437/6566/1853/files/caritas_in_veritate_english.pdf
- https://cdn.shopify.com/s/files/1/0429/7857/4490/files/letipesexidepakararizavax.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/domamusuvusuzexi.pdf
- https://cdn.shopify.com/s/files/1/0431/3789/2509/files/pilujizam.pdf
- https://cdn.shopify.com/s/files/1/0435/7790/1214/files/74121397410.pdf
- https://cdn.shopify.com/s/files/1/0434/5180/9959/files/wefomamukenuvogaf.pdf
- https://cdn.shopify.com/s/files/1/0435/6653/0728/files/58737232036.pdf
- https://cdn.shopify.com/s/files/1/0430/4633/8709/files/nepuvadifanafogibivu.pdf
- https://cdn.shopify.com/s/files/1/0434/5079/4145/files/75847678102.pdf
- https://cdn.shopify.com/s/files/1/0431/8851/9080/files/72821984411.pdf
- https://cdn.shopify.com/s/files/1/0433/4977/0408/files/65608149248.pdf
- https://cdn.shopify.com/s/files/1/0432/0165/9043/files/99658031952.pdf
- https://cdn.shopify.com/s/files/1/0432/7302/7749/files/73842390903.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_off00007c12.bin` `87e92af3cfd78a4276fbaedde631e0a4495a6daa0427c47fd86486e586acf2eb`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7C12	5496 bytes
`font_01_sfnt_off00008ebc.bin` `072e84547c661810cc8126b1c03622d1e162c1fa566c1630b48007fe171c9401`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8EBC	10648 bytes

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