PDF malware analysis — malicious · 4d42529eb022e61d

MALICIOUS

PDF

45.0 KB Created: 2020-08-30 00:50:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c8dc1245edec784b012ba9685de0c8a7 SHA-1: b1cd7db53f2a567bac1f62d9768a06ade48139b2 SHA-256: 4d42529eb022e61dea641c6a827bf3d1a3c7798a0797174f9a0226b8f8bd8163

152 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though partially corrupted, contains text related to a 'land rover defender 90 parts catalog' and includes the malicious URL. This suggests a social engineering attempt to trick users into visiting a malicious site, likely for phishing or malware distribution.

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=land+rover+defender+90+parts+catalog
- https://cdn.shopify.com/s/files/1/0439/0017/4504/files/37777659236.pdf
- https://cdn.shopify.com/s/files/1/0428/7702/6463/files/fogipepevo.pdf
- https://cdn.shopify.com/s/files/1/0435/4693/5447/files/zasemekifunif.pdf
- https://static.usrfiles.com/ugd/0aab01_d57d3d47edd3476dbfc5dbdfe1a231c6.pdf
- https://static.usrfiles.com/ugd/b8c837_4163bf30943147c6a16d8248eb7af845.pdf
- https://static.usrfiles.com/ugd/73cb9e_2e36dc26091544318a7d15a4d567e8d4.pdf
- https://static.usrfiles.com/ugd/8b9728_d604b50795e84b9390af894062ae0774.pdf
- https://static.usrfiles.com/ugd/e2f7e1_bdaf223bab0244598542db695f3d65e0.pdf
- https://static.usrfiles.com/ugd/b8c837_d46dfc5edf7f4833a626abf19ee6e198.pdf
- https://static.usrfiles.com/ugd/b8c837_e80f3863e9394ff49499568e03ae0785.pdf
- https://cdn.shopify.com/s/files/1/0431/0266/6906/files/ramuf.pdf
- https://cdn.shopify.com/s/files/1/0433/6877/5841/files/vonugaruzulow.pdf
- https://cdn.shopify.com/s/files/1/0429/7284/0090/files/analytic_function_complex_analysis.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_off0000652c.bin` `62438b77ba40a3cee9acecf378238e84380a99549c8221dc281ac39746a47206`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x652C	5624 bytes
`font_01_sfnt_off00007860.bin` `ea65d5fb72f3714c437341bf519b4f34b25390ff8ad91f8b07407169f4b760ce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7860	15216 bytes

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