PDF malware analysis — malicious · 928739027932e1df

MALICIOUS

PDF

55.7 KB Created: 2020-08-29 18:59:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: bda85a7867403b1eb42e76e506554b13 SHA-1: 4f3f38898c0693c75c87254dc70c369881979653 SHA-256: 928739027932e1dfd5d1d32c7c914ef6457d0e6608f31a2fc616aef7333c1032

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Budget Camino de Santiago' and the malicious URL, suggesting a lure. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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/wix?keyword=budget+camino+de+santiago
- https://cdn.shopify.com/s/files/1/0432/5556/2398/files/lightybulb_2_answers_9669.pdf
- https://cdn.shopify.com/s/files/1/0437/8155/4325/files/understanding_statistical_process_control_wheeler.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bifivejeg.pdf
- https://static.usrfiles.com/ugd/b8c837_d6b7d4e6566648ff8d62b88f85dfd127.pdf
- https://static.usrfiles.com/ugd/eda9ba_ebd8771ce75d4a6a99430c31fa1b56cb.pdf
- https://static.usrfiles.com/ugd/b8c837_997157d551bc4884a913108b97e2cfbe.pdf
- https://cdn.shopify.com/s/files/1/0430/3526/3138/files/76769651372.pdf
- https://cdn.shopify.com/s/files/1/0432/3934/2247/files/dugusolisivuxekezewe.pdf
- https://static.usrfiles.com/ugd/b8c837_1d87c320efe2464ea12b8ac505d36e53.pdf
- https://static.usrfiles.com/ugd/b8c837_126e144c5ecc440babe735d92e7e5aeb.pdf
- https://static.usrfiles.com/ugd/63d3ad_d10875e4200b41ddb956b21daf157863.pdf
- https://static.usrfiles.com/ugd/b8c837_c365ef63ac3a4dc3a3093827b0de7f60.pdf
- https://static.usrfiles.com/ugd/b8c837_369be3c04a034272b99533d926e64fe8.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 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00007ef4.bin` `280447a55dd073d03b5c41366501ba90b0fb5eaba4a293c40ad94d793742b5dd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7EF4	5180 bytes
`font_01_sfnt_off00009082.bin` `49ac714c9784c2cc301e591c288e6f17f27a95789a4397cf3061ea9cf0122859`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9082	10412 bytes
`font_02_sfnt_off0000b45c.bin` `b59fbf4de48dd8aa3d96adf847c97080a63991bb53c972061d95bb3759270fd7`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB45C	16396 bytes
`font_03_sfnt_off0000c9ff.bin` `551918360585b1590efa6fd2a215345b2f702067d151a0e4b48cfa7490b57960`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC9FF	1736 bytes

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