MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, a technique often used for SEO poisoning or to redirect users to malicious sites. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=ap+calculus+limit+worksheet+pdf'. The document body, though heavily obfuscated, contains similar text, suggesting a lure to disguise the malicious intent. No scripts were extracted, but the extensive link farm and the identified malicious redirector strongly indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
-
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.
-
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.
-
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.ru/pify?keyword=ap+calculus+limit+worksheet+pdf In PDF document text
- http://files.hollypham.com/uploads/1/3/1/0/131070754/vuramutupotefupe.pdfIn PDF document text
- http://files.ashleycarruthers.com/uploads/1/3/1/4/131453610/4cf5eeca7f.pdfIn PDF document text
- http://files.youdesignleather.com/uploads/1/3/2/6/132682585/masebut_gawotumobavo_sivavule.pdfIn PDF document text
- http://budoxefu.familypracticecenterofnewtown.com/uploads/1/3/2/8/132814930/joviwu-mikuj-mojuvedet.pdfIn PDF document text
- http://files.ed2edtutoring.com/uploads/1/3/2/7/132710780/fazalokepalotejaf.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/1/0440/5110/3894/files/random_number_javascript.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8749/5322/files/sipigamaludufuviz.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4115/2421/files/sudojipe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/6209/1163/files/zejozoguno.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/9918/1476/files/hindu_boy_name_list_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0799/1208/files/46901364630.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7389/6615/files/os_axiomas_de_zurique_completo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/5153/2963/files/wipakozukepix.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9758/7861/files/actos_de_comercio.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/9392/3742/files/sopenonawujufaputibos.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dutevitijenunolekegek.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8207/2743/files/bifalaxuxoruxe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/9488/2984/files/jepejimozuretetewokabisex.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_off00004db9.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4DB9 | 5540 bytes |
SHA-256: 21b83e1bdc1587f557a1d3821f5684a93c76f8416ccd432f1c0d4f0afe930e03 |
|||
font_01_sfnt_off00006075.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6075 | 9948 bytes |
SHA-256: d3310b971ef3d3c665f468ed0602bda15a39052a4f5680c6874a6a9ac1e94f0e |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.