PDF malware analysis — malicious · 0498e0d34ce236b7

MALICIOUS

PDF

41.6 KB Created: 2020-10-09 07:33:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15

MD5: b4c74e7d747f23f990421f3cde599f30 SHA-1: bbeb6a0c3beea2dd3ee0986d928a88dbdfd414b0 SHA-256: 0498e0d34ce236b71cbc2ddcefffe5d58d2adeb6d5fb1e931e0fc3a6a8fec5a8

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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.
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://ttraff.com/pify?keyword=swiss+chalet+takeout+menu+kingston In PDF document text
- https://site-1036728.mozfiles.com/files/1036728/wujapa.pdfIn PDF document text
- https://site-1037893.mozfiles.com/files/1037893/gutenigovoxijomaki.pdfIn PDF document text
- https://site-1040178.mozfiles.com/files/1040178/pabenujofagugerixurepozab.pdfIn PDF document text
- https://site-1036786.mozfiles.com/files/1036786/tuxisibexowulekoro.pdfIn PDF document text
- https://site-1040000.mozfiles.com/files/1040000/fidomipagefiluzububusib.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/ea429afd-5eb9-407c-8e7b-61a61f7bc955/ziwib.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/aa51887c-488c-4280-a24a-69fa72921cc9/69527142228.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/a7131e87-3dc4-43b0-a6c5-bd14606785de/xopijomogilupepir.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/d191b0a5-fdf5-481e-ad26-f980ed20ed65/nizog.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/19612d1e-8d8f-4888-b7ac-0da89fef129f/55490862269.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88af42e0-7faf-4489-bc08-f37604d90095/97767530191.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e76bb1b5-bc21-413a-98e1-f82929f0fa55/zupagirokame.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/70a41ad2-8d3b-46d3-abc4-cceafaf307d4/29546509116.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/5a26e7e4-42af-4786-9800-24600a86d75d/38199085920.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/54fe7bf1-d25c-4bcb-8573-0ad980769c9b/44217418194.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/4685f2dc-a175-4ede-b3e6-dc53c6d8132c/38520022397.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_off0000656a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x656A	5376 bytes
SHA-256: `c42e42af07f08b3fe1ed6c2cd501818fe4803ce54de2c4a801b8824a6921de0a`
`font_01_sfnt_off000077a5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x77A5	10024 bytes
SHA-256: `b18a23bdfa9cd2a54ae4f0c2525c37d64236d7d9046e4a858b66843f3b274d8c`

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