MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains text suggesting a 'block letter format example pdf' lure, which is likely intended to trick users into clicking the malicious link. The ML classifier strongly indicates maliciousness, and the presence of a link farm further supports a malicious intent to drive traffic to potentially harmful sites.
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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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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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.com/pify?keyword=block+letter+format+example+pdf In PDF document text
- http://figesu.framingidentity.org/uploads/1/3/0/8/130814011/f1ce48f.pdfIn PDF document text
- http://rujadit.joannemooncelebrant.com/uploads/1/3/1/6/131636725/faed9b76.pdfIn PDF document text
- http://files.davidpaap.com/uploads/1/3/0/8/130873983/2892012.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://www.daltonmaag.com/In PDF document text
- https://cdn.shopify.com/s/files/1/0430/9568/7328/files/turiwa.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2630/0575/files/pazip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/9830/0823/files/nuxurelarexisesemoral.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3885/0728/files/mirowopanebexetode.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3981/7890/files/fufatonasuxapag.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4227/5485/files/pdf_akuntansi_perusahaan_dagang.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/2651/4077/files/69329892815.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7509/3159/files/74255685726.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7940/1632/files/microsoft_office_for_mac_product_key.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/5350/4917/files/crash_bandicoot_gba.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9941/3921/files/90630958739.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/2790/7239/files/pamafomupomox.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
🗂 Part of campaign:
brokenknucklekustoms.com
3 samples
Extracted artifacts 4
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bf30.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBF30 | 2828 bytes |
SHA-256: b7f317aa0f29cd34df008dc84d8f376d2685882a57a4a5cd0d86477d0adf885a |
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font_01_sfnt_off0000c92b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC92B | 4940 bytes |
SHA-256: 3fc374cfaefc02805b15b2441e77e7ca9b39255e38e760b7af395e306eb18fac |
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font_02_sfnt_off0000d9fb.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD9FB | 10120 bytes |
SHA-256: 802e4a651a518845ba1d7851ae4a04932bb4bfcc306eafa058555faed49c3786 |
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font_03_sfnt_off0000fc94.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFC94 | 4324 bytes |
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3 |
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