PDF malware analysis — malicious · 026791d260b4b6f6

MALICIOUS

PDF

45.1 KB Created: 2020-11-09 06:43:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: 7937887740cae0307e12efec94c55608 SHA-1: 8eb8d74d8a083f11aeb3cda0ef0698f8a7470040 SHA-256: 026791d260b4b6f6846b85eabefe2eda3188a0efdb0f7f599cdaba80c8aada82

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=stihl+chainsaw+ms291+online+manual PDF link annotation
- https://jigaxamika.weebly.com/uploads/1/3/4/6/134610035/gaketijuzimugesisitu.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4377120/normal_5f92748f643f1.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4390659/normal_5f9559afac45f.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4375341/normal_5f91dec8db681.pdfIn PDF document text
- https://xemupawiked.weebly.com/uploads/1/3/4/3/134321325/sixiti.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4449419/normal_5f9ef40ce74f9.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://nisowekewus.files.wordpress.com/2020/11/71847233910.pdfIn PDF document text
- https://s3.amazonaws.com/zalomi/76774569218.pdfIn PDF document text
- https://s3.amazonaws.com/varoximu/volleyball_stat_sheets_printable.pdfIn PDF document text
- https://vuwujija.files.wordpress.com/2020/11/79995466096.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000623b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x623B	5360 bytes
SHA-256: `9f45483b2e64b462c465946f52c5497fcae7ebbc67e1d0bb8801b1bd10c165ce`
`font_01_sfnt_off0000744f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x744F	11024 bytes
SHA-256: `2bce222b5b6380c1a7db44f4ef60ce63a17161aabbeac3847c70bc933355b77b`
`font_02_sfnt_off000099ee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99EE	4324 bytes
SHA-256: `4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3`

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