PDF malware analysis — malicious · 9b8a399a7a4dba04

MALICIOUS

PDF

42.5 KB Created: 2020-11-06 23:55:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 7b3e7329483967fa741d4234951c9ec3 SHA-1: 1a026d23e4dec4b393177f1bab5435f7f607c015 SHA-256: 9b8a399a7a4dba04d9baf5d458528d7d57dce31e5d804f9f7a34722cb05c78fe

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://trafffe.ru/123?keyword=july+2020+psychic+predictions+for+trump PDF link annotation
- https://rijizego.weebly.com/uploads/1/3/0/7/130776487/9907932.pdfIn PDF document text
- https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/837046.pdfIn PDF document text
- https://datirelegewewat.weebly.com/uploads/1/3/4/3/134329883/luxeberosa.pdfIn PDF document text
- https://zuvubexusemeto.weebly.com/uploads/1/3/4/3/134373725/2970522.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/cb49eebd-ea8a-4c78-9ca3-08217f144219/43911367220.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/c5615a95-e5ed-44da-b526-5a71528cf755/barbarian_days_a_surfing_life_summary.pdfIn PDF document text
- https://s3.amazonaws.com/wejuvono/the_things_they_carried_study_guide_answers.pdfIn PDF document text
- https://s3.amazonaws.com/fizup/register_booster_fan_6x12.pdfIn PDF document text
- https://s3.amazonaws.com/memul/ansi_ashrae_standard_55-_2017.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4b3a2aed-ac5b-4f6a-9685-653fb53f97e3/5392300746.pdfIn PDF document text
- https://s3.amazonaws.com/gadumagabusodel/jatufizowixipavugobe.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_off0000650f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x650F	5552 bytes
SHA-256: `65b151aa9feb26b65292b5957b2de8a75ac8570fdd4f1bdf2584f4cc69cbf53b`
`font_01_sfnt_off000077da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77DA	11088 bytes
SHA-256: `dd71fcb33ecf28b6473441f1ea3df663cb3b9de18306c11a7c99ed25ceee64e6`

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