PDF malware analysis — malicious · dd756ada2103d1a4

MALICIOUS

PDF

48.2 KB Created: 2020-08-15 17:23:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 04650ea270c956ad1ed7abb5f81e8343 SHA-1: c4fb9d9ce102dbd9fe6ae90bb8ec2b2a7bbc4e9a SHA-256: dd756ada2103d1a49be868be060a952e2efd158444818a063f9b8fdd65fa6c8f

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF was flagged by multiple critical heuristics for containing a malicious redirector link and a link farm. The embedded URL points to 'ttraff.com', which is known malicious infrastructure. The document body, though heavily obfuscated, contains the same URL, reinforcing the malicious intent. The primary attack pattern involves luring users through a deceptive link.

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/wb?keyword=calisthenics%20program%20for%20mass%20pdf
- http://files.historyuntangled.org/uploads/1/3/2/6/132696465/4078281.pdf
- http://files.krgriffiths.org/uploads/1/3/0/8/130874129/96dffd9.pdf
- http://files.fossilridgetheatre.com/uploads/1/3/2/6/132681664/512b94f.pdf
- http://files.drivershieldasia.com/uploads/1/3/1/3/131379540/lagusila-nebuzesodono-masinituguw.pdf
- https://cdn.shopify.com/s/files/1/0431/3848/2332/files/wedgewood_stove_manuals.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tuwaz.pdf
- https://cdn.shopify.com/s/files/1/0431/1089/1680/files/26005077143.pdf
- https://cdn.shopify.com/s/files/1/0437/8561/7570/files/likiluvulapan.pdf
- https://cdn.shopify.com/s/files/1/0434/7287/9773/files/femiwilotarajapew.pdf
- https://cdn.shopify.com/s/files/1/0433/7437/9157/files/87693601642.pdf
- https://cdn.shopify.com/s/files/1/0438/2982/1600/files/gekigot.pdf
- https://cdn.shopify.com/s/files/1/0437/5710/9402/files/aesthetic_philosophy.pdf
- https://cdn.shopify.com/s/files/1/0434/0128/1701/files/65478617923.pdf
- https://cdn.shopify.com/s/files/1/0433/7503/4520/files/guxukolapegigum.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugomedimugatusigoxafif.pdf
- https://cdn.shopify.com/s/files/1/0431/4185/7448/files/85792432140.pdf
- https://cdn.shopify.com/s/files/1/0431/3173/2132/files/42920644283.pdf
- https://cdn.shopify.com/s/files/1/0433/0546/8068/files/acido_citrico_usi.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_off00007e96.bin` `9eaf4b26049ea10e90919db719476e58efea7f8baf4958d95f6a0e9007dad936`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7E96	5476 bytes
`font_01_sfnt_off000090fc.bin` `13d63b34b412db49faca11208411633290f4ff4aa1ddfe7805c1919cfec6bb43`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90FC	10072 bytes

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