MALICIOUS
254
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains multiple heuristics indicating malicious intent, including links to known redirectors and a large number of external PDF links, suggesting a link farm for SEO manipulation or phishing. The document body, though partially corrupted, contains a URL that is also flagged as a malicious redirector. The ML classifier strongly indicates maliciousness, and the presence of callback phishing lures further supports a malicious classification.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
-
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.
-
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.
-
PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINKPDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
-
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.
-
Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
-
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.
-
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=acca+f6+finance+act+2020+pdf In PDF document text
- http://files.eytspartans.org/uploads/1/3/2/8/132814996/fusakupafogureb_rosama_somufivijaso.pdfIn PDF document text
- http://gupeweto.coachhouseaccommodationledbury.com/uploads/1/3/1/0/131071243/levojurogidozifavo.pdfIn PDF document text
- http://files.electrolysisandco.com/uploads/1/3/1/8/131857631/jarobemanilizedos.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/1/0428/9835/8432/files/kemisavixazesunomezixe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1370/9722/files/kidijigipudotepazofale.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/0686/8126/files/54201729955.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7079/9510/files/13073748687.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/9033/7182/files/35820184117.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9140/9558/files/88486348689.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/7133/1742/files/zitadopudeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/5727/4270/files/44364898111.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/nejoxalivivurotuzepebibus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2956/8408/files/tunuvorevepanigixasizade.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8647/1587/files/3rd_grade_vocabulary_activities.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9474/6023/files/98819259616.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_off0000f327.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF327 | 5260 bytes |
SHA-256: beb3e6e9cdc9c5e629b6f64fa914deca421a6b966a50a00f4a2dbdbe095801cb |
|||
font_01_sfnt_off00010528.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10528 | 10180 bytes |
SHA-256: 3d7d036e8b7a34fcd32ef614754392eb12ec1af06aae65d6b92e3b78cf63a1a7 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.