PDF malware analysis — malicious · 77c158d673b07079

MALICIOUS

PDF

51.5 KB Created: 2020-11-09 15:50:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-11

MD5: fce423ed6f0161a5eafeb91086b1cade SHA-1: c6be907f18ec130f9558494768595c65592fed04 SHA-256: 77c158d673b070790b90ed9919cda35ca433a57f3f307f99bc7507f205f6c1b7

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=garmin+drive+61+manual PDF link annotation
- https://cdn-cms.f-static.net/uploads/4421627/normal_5fa5abaf9c924.pdfIn PDF document text
- https://guxesawaxogego.weebly.com/uploads/1/3/4/3/134314991/katakizezebu-zokivilijanul-ralemelapeniku.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4421341/normal_5fa11ea8eb651.pdfIn PDF document text
- https://kunimagim.weebly.com/uploads/1/3/4/6/134608209/7693096.pdfIn PDF document text
- https://kinojapi.weebly.com/uploads/1/3/2/3/132302846/jigaxewiwokoxuriwi.pdfIn PDF document text
- https://fimelaxezabu.weebly.com/uploads/1/3/4/6/134622198/e9672f0cc51.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4369323/normal_5f87bafa708db.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/bejeseja/39947053934.pdfIn PDF document text
- https://s3.amazonaws.com/jojitagifuva/babylonian_numerals.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
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off000067af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67AF	5092 bytes
SHA-256: `f06e06f988372b2366af2e7f008854dfc1e344b55806a939a1d7c3153bc023f0`
`font_01_sfnt_off000078f6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x78F6	11360 bytes
SHA-256: `46058c12e96d57d3ee1a59bf4ef9e820c651856b07c38849c239d93a1146c612`
`font_02_sfnt_off00009e36.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E36	20152 bytes
SHA-256: `b5da8992ca8f2c376d5cf5f502804b2e92954e8eb479a817ded75a30b2175174`

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