PDF malware analysis — malicious · 8f964f443521d202

MALICIOUS

PDF

55.1 KB Created: 2020-10-25 07:13:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-12-25

MD5: 6d5723bc5fece9e0dc065a9ceeeaa28e SHA-1: 001256c7dac9788615c708e4b4d55f9dc04c1e15 SHA-256: 8f964f443521d202376fcdd17a04eb2586ca68b4a65fdd87df2a398868939cb2

184 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 5

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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.link/pify?keyword=android+status+bar+color In PDF document text
- https://majijajivetik.weebly.com/uploads/1/3/4/2/134265766/xenugiluwega.pdfIn PDF document text
- https://jovikuveditowe.weebly.com/uploads/1/3/0/8/130874612/7250269.pdfIn PDF document text
- https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/wozaj.pdfIn PDF document text
- https://velulaganivuvoj.weebly.com/uploads/1/3/4/4/134438708/pasok.pdfIn PDF document text
- https://jakedekokobara.weebly.com/uploads/1/3/1/3/131381480/jolon_koxuzozudanik_makilitinami.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/pazifetanegapu/wavelet_analysis_matlab.pdfIn PDF document text
- https://s3.amazonaws.com/levovod/bulk_up_fast.pdfIn PDF document text
- https://s3.amazonaws.com/felasorarabipis/jadofomitiguz.pdfIn PDF document text
- https://s3.amazonaws.com/buxoparadazegu/zumusito.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/2a507e39-0d39-48ba-9597-6fc2020f9d8a/81117173262.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/826d04b4-8f74-43e4-b80a-ae874a1e9b46/jakum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0499/8486/4415/files/borderlands_pre_sequel_grinder_recipe_guide.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/5832/6435/files/vobovunefosile.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0483/9440/3989/files/filovukexed.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/e685ca43-a463-457a-a817-94c70a1f55ed/43065573170.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/31826fae-bec0-4db2-a9d8-af6aca8b6d36/venerax.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/88be2a95-5ece-4c2b-83d9-5c3dcb7b27c9/80290821000.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/411d96da-0621-497d-b276-10d4130703f8/bowefaduzitolenotok.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/17692065-190d-4b82-8e69-93eb6230b6ce/sokazuni.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/da460390-8486-4965-8643-a8098a5b8224/36175081592.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_006_off0000a9e3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0xA9E3	20852 bytes
SHA-256: `5bcde039717dc97fc95fa86ae95fb2a11639be520ebdaaf180500d31a90e10f1`
`font_00_sfnt_off00007058.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7058	5060 bytes
SHA-256: `7ce609325f9b4f8fe39abfd61ea65d231746c42083cc0825ac5a8505aecdbbe2`
`font_01_sfnt_off00008198.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8198	11720 bytes
SHA-256: `dc9c59e907b87878ebafda6831d0b295777d39de5cbaf728c62734e787765a8d`

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