PDF malware analysis — malicious · b6802cbfe234341f

MALICIOUS

PDF

36.9 KB Created: 2020-11-08 23:23:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: f0b833d99b157820a7e9096e18119429 SHA-1: 3c63b47fb2bd1f9018ecb156a1a0b8ce8800a73a SHA-256: b6802cbfe234341fa830605f9020cea91e9e26c6e5c2908d81e17d30989fa096

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://trafftec.ru/123?keyword=the+diamond+dimensions+modpack+technic PDF link annotation
- https://cdn-cms.f-static.net/uploads/4368950/normal_5f8f9f85166de.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4366005/normal_5f925c9fc2ece.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420018/normal_5fa129f2f35c8.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/leteraxewe/mount_and_blade_best_starting_stats.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/9c6413a6-4063-45e0-be7a-1207f07df6e7/thanos_demands_your_silence_twitter.pdfIn PDF document text
- https://s3.amazonaws.com/lixasifasi/dufudotodarozupovu.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/b7d55532-6567-493e-8aa2-24d927872e34/5218379763.pdfIn PDF document text
- https://s3.amazonaws.com/dalava/68503549066.pdfIn PDF document text
- https://s3.amazonaws.com/sibenuvokiwuz/how_to_calculate_proficiency_bonus.pdfIn PDF document text
- https://s3.amazonaws.com/badodemebo/sox_compliance_checklist_accounts_receivable.pdfIn PDF document text
- https://s3.amazonaws.com/xisefowu/borderlands_pre-sequel_torgue-o_torgue-o.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_off00005177.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5177	5200 bytes
SHA-256: `7e48f0fad889b7a947a93b2950a24ad4d0419551d546e1808d9c6ef893675357`
`font_01_sfnt_off00006300.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6300	10604 bytes
SHA-256: `62c661ecf9a1d71a008549ca9f5bf2eaf0756e211b7efa890ac4e508841f718c`

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