PDF malware analysis — malicious · c7cc5092bdc506d2

MALICIOUS

PDF

43.5 KB Created: 2020-08-06 20:47:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: b6e750210a2804366b517ca92fc4fc7c SHA-1: 7d2d66ba554677e1ae6fc0b17372830fd9b0c77e SHA-256: c7cc5092bdc506d2bc06e05b8f12a83dc8aa4125442cb451b0598663cf8222a1

150 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with one specifically identified as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though partially corrupted, contains the malicious URL, suggesting the intent is to redirect the user to potentially harmful 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.cc/pify?keyword=anemia+hemolitica+recien+nacido+pdf
- http://files.barbarafoxartstudio.com/uploads/1/3/1/3/131382841/0a080e.pdf
- http://files.chocolatedudeabq.com/uploads/1/3/0/8/130814682/zawoponewadi.pdf
- http://files.strengthindia.org/uploads/1/3/0/7/130739027/guzazemivosoze_timifejokikike.pdf
- https://cdn.shopify.com/s/files/1/0435/2226/1143/files/list_of_us_cities_by_population.pdf
- https://cdn.shopify.com/s/files/1/0431/1423/4017/files/carol_of_the_bells.pdf
- https://cdn.shopify.com/s/files/1/0434/4106/2040/files/poppy_avi.pdf
- https://cdn.shopify.com/s/files/1/0431/2514/5754/files/fexukalon.pdf
- https://cdn.shopify.com/s/files/1/0438/0744/1053/files/multiplicative_inverse_calculator.pdf
- https://cdn.shopify.com/s/files/1/0432/5300/6494/files/fotugowuvoxoxazafuzagozu.pdf
- https://cdn.shopify.com/s/files/1/0440/0611/3430/files/mulokubotizet.pdf
- https://cdn.shopify.com/s/files/1/0435/7075/7795/files/fusopusixisabosubi.pdf
- https://cdn.shopify.com/s/files/1/0438/4813/8912/files/60572031512.pdf
- https://cdn.shopify.com/s/files/1/0433/0084/7781/files/7279388762.pdf
- https://cdn.shopify.com/s/files/1/0434/9339/2536/files/nomukotegud.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rewosegukedisupagur.pdf
- https://cdn.shopify.com/s/files/1/0431/0623/8626/files/bilitikofar.pdf
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/gifepizanakilokajevutinef.pdf
- https://cdn.shopify.com/s/files/1/0429/6219/0499/files/fukerewumowalus.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_off000069bd.bin` `27aae5485046e2ff88371a120261eaca560bab31a85a4f974fc03292aeb41488`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69BD	5204 bytes
`font_01_sfnt_off00007b46.bin` `b4cea5ca96a062e3cd949eb7faaa05c7c82ebcf0819d7e04f0c321fce6cff016`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7B46	10980 bytes

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