PDF malware analysis — malicious · 60847367de80d69a

MALICIOUS

PDF

33.0 KB Created: 2020-08-29 07:31:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: c87fe0c4069a487f4b2d97e83ac9bc74 SHA-1: 90cb55375804f6ffe44d0cc8579d8ba66ae40a8c SHA-256: 60847367de80d69a3cbcf818009e5a928bd5158009ed5ae6091625dae9019882

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a link that redirects to a known malicious domain, disguised with a search query for a movie. This indicates a phishing or scam attempt to lure users to malicious content. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a phishing attack.

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=barbie+pony+tale+full+movie+in+english
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://static.usrfiles.com/ugd/b8c837_5ae2889575764f73a16e29a057cfd818.pdf
- https://static.usrfiles.com/ugd/b8c837_97e2640bd1cb497eaffce27b09671eb0.pdf
- https://static.usrfiles.com/ugd/b8c837_29d687b177f84664b0bc3efad5eb96d3.pdf
- https://static.usrfiles.com/ugd/b8c837_1dc06b8a4d1e49f2aa0a95c7f6ebf558.pdf
- https://static.usrfiles.com/ugd/b8c837_56b12172fd954cb7be43318321bb1f0c.pdf
- https://cdn.shopify.com/s/files/1/0430/7858/2439/files/letosufuli.pdf
- https://cdn.shopify.com/s/files/1/0428/5625/1559/files/84256591231.pdf
- https://cdn.shopify.com/s/files/1/0432/3442/7047/files/92141308147.pdf
- https://cdn.shopify.com/s/files/1/0429/1949/3785/files/hp_laptop_brightness_driver_windows_10.pdf
- https://cdn.shopify.com/s/files/1/0436/0414/8381/files/muzibugamuximaxasulorow.pdf
- https://static.usrfiles.com/ugd/b8c837_8c72a3f4c8a94c9881aa3c40433381a7.pdf
- https://static.usrfiles.com/ugd/b8c837_edaa6cb7a74a450c919441e89df33d72.pdf
- https://static.usrfiles.com/ugd/b8c837_76925b519f274fabb3e97b08dfb613a7.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/
- http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004320.bin` `ffae541856f893a444cb864f3569b9a048c67b078550aca6832752a6a5363132`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4320	5668 bytes
`font_01_sfnt_off00005641.bin` `06fe0bfa433f99adbad09239d6ca1f635f0e63a5519fa44c5cc24fa72950c71c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5641	9624 bytes

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