PDF malware analysis — malicious · 807b073ce5e87c37

MALICIOUS

PDF

40.9 KB Created: 2020-11-04 09:50:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01

MD5: 468e17b223a06995d9fe9291a65ecbf1 SHA-1: cbc88f6f4205d23bd3e1663f61a9af131bf60cdb SHA-256: 807b073ce5e87c3728c47317bb580c6346aa3f6f8d78e3f09ea9936e7b0991c9

134 Risk Score

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.
Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK

PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
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.me/123?keyword=lowes+coupons+september+2019+online In PDF document text
- https://cdn-cms.f-static.net/uploads/4380080/normal_5f9ec04f4d1a2.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4379848/normal_5f91e2e860774.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374835/normal_5f9e4adc9153b.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://s3.amazonaws.com/zonivezada/24800630467.pdfIn PDF document text
- https://s3.amazonaws.com/voxipanovigepiv/77057237075.pdfIn PDF document text
- https://s3.amazonaws.com/fefurorobumi/big_data_mapreduce_hadoop_and_spark_with_python.pdfIn PDF document text
- https://s3.amazonaws.com/belapawerezuju/85433591447.pdfIn PDF document text
- https://s3.amazonaws.com/senodiw/kofoxidifaxop.pdfIn PDF document text
- https://s3.amazonaws.com/xebuvuwov/pdf_macbeth_download.pdfIn PDF document text
- https://s3.amazonaws.com/gowebabuxogiro/lojod.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005f6c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5F6C	5524 bytes
SHA-256: `0d1dbfda8c818559ac5c592eeb580c599ad77cf035e6660f2a94b043b03fc3a3`
`font_01_sfnt_off00007237.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7237	10792 bytes
SHA-256: `7ab95758ae5a1a1ca90b263d97384da2e07839da967ad07486e831743deff0dc`

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