MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains numerous embedded links, many of which point to external PDF files hosted on various domains. One critical heuristic identified a link to a known malicious redirector, `https://ttraff.ru/pify?keyword=academic+performance+of+working+students+pdf`, suggesting a phishing or malware distribution attempt. The document body itself is heavily obfuscated but contains references to academic performance and PDF files, likely serving as a lure. The presence of a link farm heuristic further supports the malicious intent of directing users to potentially harmful content.
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=academic+performance+of+working+students+pdf In PDF document text
- http://files.burmantoftscommunityprojects.org/uploads/1/3/2/6/132681928/7019272.pdfIn PDF document text
- http://tinuv.nyunderground.info/uploads/1/3/0/8/130874359/ea32490f583ca.pdfIn PDF document text
- http://vokuduj.anthonyweitz.com/uploads/1/3/1/8/131872055/zixinizulujote.pdfIn PDF document text
- http://files.itfcwomen.co.uk/uploads/1/3/1/4/131438353/towusag_tojotazilaje_jukitifumum.pdfIn PDF document text
- http://files.houseofcare.org/uploads/1/3/1/4/131437753/bopago_kabatubofat_mejet.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/1/0428/9835/8432/files/zugazad.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8249/7701/files/41872120736.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/6558/0437/files/ancient_egypt_silverman.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3041/2454/files/38765866903.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6127/2995/files/59745042291.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/3195/2536/files/4050306888.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/4275/7029/files/28259511373.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/4885/3926/files/85471356133.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/7331/5740/files/dropdown_menu_php.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4034/2169/files/kadifur.pdfIn PDF document text
- http://www.flickr.com/photos/alamosbasement/In 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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005fad.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5FAD | 5472 bytes |
SHA-256: 4a3cc72e9438a9bd638f40c6ddbb093a59e6759fb582ce95336a654b71a8aedf |
|||
font_01_sfnt_off0000723f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x723F | 9700 bytes |
SHA-256: 37b8c8ddae41ebeaa18d42db2f46c9a846850ebc7fcd1a138cc78e24b4e82d85 |
|||
font_02_sfnt_off00009378.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9378 | 4324 bytes |
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378 |
|||
Open this report in the interactive analyzer, or submit your own file for analysis.