PDF malware analysis — malicious · 7ef5c4fdfb60dd63

MALICIOUS

PDF

38.0 KB Created: 2020-11-07 22:07:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-01-23

MD5: 1193cffc49e7f8c4d5926c2f3e468277 SHA-1: 6543a01ce02fc48336c3a5e972bb830ba3007295 SHA-256: 7ef5c4fdfb60dd63429040b4a57d384ed78c7555ec6fb6efda5d821bcc5ceaf3

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=handless+millionaire+unblocked+google+sites PDF link annotation
- https://gadipofonikiw.weebly.com/uploads/1/3/4/3/134390141/f00a1dff.pdfIn PDF document text
- https://walasopi.weebly.com/uploads/1/3/4/5/134588780/bunoporobin-kirigojod.pdfIn PDF document text
- https://rabifupokuwu.weebly.com/uploads/1/3/1/1/131164250/7226353.pdfIn PDF document text
- https://zosupexaduj.weebly.com/uploads/1/3/0/7/130738593/bebapojifodo.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/wenobagupexekap/common_black_girl_tag.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/7227439c-0931-4dd6-8caa-b5cada83bf1f/40992093363.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d4733ccb-e70e-46a1-92d1-361871282e63/14550735859.pdfIn PDF document text
- https://s3.amazonaws.com/gidibesuxi/82528151745.pdfIn PDF document text
- https://s3.amazonaws.com/tejuvonixag/cisco_2960_x_24_datasheet.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/671721f2-3558-484e-b9b5-cc2836933c7c/jujoponopenasefeji.pdfIn PDF document text
- https://temobozuz.files.wordpress.com/2020/11/punjab_university_degree_verification_challan_form_online.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_off00005572.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5572	5424 bytes
SHA-256: `5d32ada45b60059cf3e8df3bd418fd9b0cfb1c774d7b407e584d2327dbc8f5c5`
`font_01_sfnt_off000067c8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67C8	10468 bytes
SHA-256: `0e9776c0b6eafa8d05e13ecacacfb648af4a00f7063d8638f2107576d02aaf83`

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