MALICIOUS
214
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many of which are hosted on Shopify domains and appear to be part of a link farm. One critical heuristic identified a link to a known malicious redirector at "https://ttraff.ru/pify?keyword=alabama+cdl+manual". The document body, though heavily obfuscated, contains this URL and references "Alabama cdl manual", suggesting a lure to trick users into clicking the malicious link. The ML classifier strongly flagged this PDF as malicious.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINKPDF 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.
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Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARMSmall 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.
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Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINKPDF 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.
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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe 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.
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Embedded URL info EMBEDDED_URLOne 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.ru/pify?keyword=alabama+cdl+manual In PDF document text
- http://files.oldcahaba.org/uploads/1/3/2/7/132740541/joleduxurolekel.pdfIn PDF document text
- http://files.southlandfamilyclub.com/uploads/1/3/1/3/131379371/e862cb.pdfIn PDF document text
- http://files.groundscapes.net/uploads/1/3/1/4/131453252/bimogafijis-kimow-fuxuwutewedelon.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9389/4044/files/zifiguduzuwagufa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7495/3124/files/opm_piano_sheet_music.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0749/2775/files/35682680741.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8360/4903/files/wokodepusokapipojo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4940/2016/files/12129183335.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/9270/4408/files/52012096738.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7692/0220/files/jimidoxewapevizejuwovu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/0143/0695/files/26203998340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8750/4294/files/88364038458.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/8697/0021/files/66243367879.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8370/3206/files/jivenikonijusovudalo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/6051/7269/files/dapikisuvepinemifotum.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8607/8369/files/node_random_string.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_off000062f9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x62F9 | 4940 bytes |
SHA-256: e72f7a6ac101f6e577c2a01f88faeaf34215ae05c0c4663ca0f3f6a1c3733950 |
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font_01_sfnt_off000073b3.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x73B3 | 10352 bytes |
SHA-256: d21c782173c1127c865a875b1d1b5eb99c8dd9450fcb7a4843c1059cb8384be3 |
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