PDF malware analysis — malicious · f49249aca5764d72

MALICIOUS

PDF

43.0 KB Created: 2020-11-06 19:09:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-15

MD5: bec51cb5758e65830cea276e1e02c217 SHA-1: 18a81a9e63ee16bce9288969be2ce6999c43e51d SHA-256: f49249aca5764d72ffc6c27b6e272dbca3bc8cbf9c721c4534a1efbd20391634

76 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
External URI info PDF_URI

PDF contains an external URL action
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://traffset.ru/aws?keyword=cheap+straight+jackets+for+sale PDF link annotation
- https://cdn-cms.f-static.net/uploads/4393762/normal_5f995f588d656.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4367665/normal_5f87662827984.pdfIn PDF document text
- https://mogidudurunupiz.weebly.com/uploads/1/3/2/6/132695636/katulepunusuvenag.pdfIn PDF document text
- https://mikodetakono.weebly.com/uploads/1/3/4/4/134497144/3178409.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4380545/normal_5f90d38e90521.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4374857/normal_5fa46e872a842.pdfIn PDF document text
- https://makaxifosezopuv.weebly.com/uploads/1/3/4/5/134511124/654d162.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4365549/normal_5f87333f05a83.pdfIn PDF document text
- https://gonerogad.weebly.com/uploads/1/3/1/4/131438616/jobud-kajixo.pdfIn PDF document text
- https://tivakoxidedopa.weebly.com/uploads/1/3/0/7/130776298/soxuboxesumexi.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://uploads.strikinglycdn.com/files/613356ee-6653-4730-ac80-149aa3a701e4/lafuzugikug.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_off000068d7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68D7	5324 bytes
SHA-256: `c47133d89ec135f2b290c454929b1ee2d7a4833bc9b9c3c04b9caa52176882de`
`font_01_sfnt_off00007af4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7AF4	10856 bytes
SHA-256: `4039fe4dafdd8dcfa710bb11122d826aad3f1f52fe727172460262a9d537d012`

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