PDF malware analysis — malicious · 2679ce44bc9d1b22

MALICIOUS

PDF

35.4 KB Created: 2020-08-03 07:22:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 5a6892f1020c480f41ea403408505a57 SHA-1: 935189387dd92afc0ad3ea1b9815c7ec1734a059 SHA-256: 2679ce44bc9d1b22ba02baca1d5f865537fd6285236aae86cb8b6e587a9d18b7

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a mass of external links, many hosted on Shopify, designed to appear as legitimate content. One critical heuristic identified a link to a known malicious redirector at `https://ttraff.cc/pify?keyword=scrap.+tf+not+working`. The document body, though heavily obfuscated, contains text related to this URL, suggesting a lure to a phishing or malware distribution site. The large number of embedded links indicates a potential SEO poisoning or link farm 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.cc/pify?keyword=scrap.+tf+not+working
- http://files.millenniagraphics.ca/uploads/1/3/2/6/132681812/574e13a18830.pdf
- http://files.kentvalleyfsc.org/uploads/1/3/1/4/131408415/kulefatapuger_vipipekemubavu_pesifelepopopus.pdf
- http://files.endlesslygrateful.com/uploads/1/3/0/8/130814411/pokozunix.pdf
- http://files.collezioneteja.com/uploads/1/3/1/4/131483632/2142592.pdf
- http://files.stfrancis-sthedwig.com/uploads/1/3/2/6/132682113/2405117.pdf
- https://cdn.shopify.com/s/files/1/0433/8365/2506/files/zuziwikaz.pdf
- https://cdn.shopify.com/s/files/1/0430/7386/3829/files/73096271008.pdf
- https://cdn.shopify.com/s/files/1/0432/8728/1832/files/rirolujugixajuw.pdf
- https://cdn.shopify.com/s/files/1/0427/4031/8375/files/87550380.pdf
- https://cdn.shopify.com/s/files/1/0433/1329/9620/files/kofefimimafetukipoj.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/toraladomokipina.pdf
- https://cdn.shopify.com/s/files/1/0434/7982/6597/files/52778827049.pdf
- https://cdn.shopify.com/s/files/1/0430/1714/2433/files/19112138741.pdf
- https://cdn.shopify.com/s/files/1/0436/4979/4213/files/namofe.pdf
- https://cdn.shopify.com/s/files/1/0432/2859/4336/files/gadepufitemoger.pdf
- https://cdn.shopify.com/s/files/1/0436/0273/9363/files/27909467803.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/50537202024.pdf
- https://cdn.shopify.com/s/files/1/0437/8951/6962/files/denuragetegidusawafixevos.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_off00004ba9.bin` `6d3f3b8c5a9931795ba697e00aa7a94dd201452d5f8da5610b814ddacff656e0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4BA9	5264 bytes
`font_01_sfnt_off00005dc5.bin` `539d555956f7d22000defc3bf05050044d3909133b53e16a3e2864159c151ad8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DC5	10256 bytes

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