PDF malware analysis — malicious · c475b0b2fb9ff8fb

MALICIOUS

PDF

40.6 KB Created: 2020-09-01 10:44:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: dddf098328c573ed74356d613740c6d6 SHA-1: 54ec090ed138082784ad6dd8d55f9e386dd9ddb0 SHA-256: c475b0b2fb9ff8fbd51e1b47ce363118d4d659d4f8fa8170d889807738dd6b0a

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a link to a known malicious redirector, ttraff.ru, which is disguised with a seemingly innocuous keyword related to sports news. This indicates a phishing or social engineering attempt to lure the user to a malicious site. The ML classifier strongly supports the malicious nature of this PDF.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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.ru/wix?keyword=cardinals+football+injury+report
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdf
- https://cdn.shopify.com/s/files/1/0428/8321/9619/files/runap.pdf
- https://cdn.shopify.com/s/files/1/0439/4971/9720/files/84952083454.pdf
- https://static.usrfiles.com/ugd/9e41f0_30e6940d74dd4a53957c024adcebe418.pdf
- https://static.usrfiles.com/ugd/b8c837_67212efc73d74239844be4f70bcf6f48.pdf
- https://cdn.shopify.com/s/files/1/0439/0099/3691/files/axel_general_lubricating_grease_guide.pdf
- https://cdn.shopify.com/s/files/1/0455/6609/9621/files/volume_of_compound_shapes_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0437/3741/5831/files/queen_bed_sheet_fitted_sale.pdf
- https://cdn.shopify.com/s/files/1/0428/5625/1559/files/52364815256.pdf
- https://static.usrfiles.com/ugd/22739b_de958cfd0d6a4f9cb65e7c7a1ed167b7.pdf
- https://static.usrfiles.com/ugd/9ea9b6_dbb5c676723a4f4d91024b4712782cf1.pdf
- https://static.usrfiles.com/ugd/2ca09c_073963ec19fa4c228b56cbb93a2d0241.pdf
- https://static.usrfiles.com/ugd/b8c837_cc7f93e8b811467cb0ed3ad494484435.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_off00005f9a.bin` `10adae9af04fc3ab8d6a9ad94b8536ee7cb16da90aded65bf44da70e574ee8ed`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F9A	5256 bytes
`font_01_sfnt_off00007191.bin` `0f44bc0ef6ada755f4e155b1707850dff8a462299ab998d1fd9c7765ad318327`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7191	10656 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.