MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a deceptive document body referencing 'bstc result 2020 name wise pdf' and numerous embedded links. A critical heuristic identified a malicious redirector link pointing to 'https://ttraff.cc/pify?keyword=bstc+result+2020+name+wise+pdf', indicating an attempt to lead the user to malicious infrastructure. The presence of a large PDF link farm, with many links pointing to benign Shopify domains but one critical redirector, suggests a social engineering tactic to obscure the malicious destination.
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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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.
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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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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.cc/pify?keyword=bstc+result+2020+name+wise+pdf In PDF document text
- http://saralakaz.bluepansycottage.com/uploads/1/3/0/8/130874284/fufefitadebowobefuk.pdfIn PDF document text
- http://files.pridefightingchampionshipstribute.com/uploads/1/3/0/8/130814235/f67774d2690a.pdfIn PDF document text
- http://files.refacemasters.com/uploads/1/3/1/3/131383323/kunadeka-xesil-fokap.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/1/0431/6302/5559/files/government_budgeting_system.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5650/4744/files/fevute.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/1236/6241/files/19374619642.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7453/6103/files/wimititudaludor.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9569/4239/files/zamozoloruzeji.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/6511/4775/files/65078919748.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3033/2070/files/vonuvumopitit.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0448/0391/5933/files/the_barefoot_investor_five_steps_to_financial_freedom.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/8738/1155/files/gamimuvunen.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0440/4042/1541/files/python_print_2_decimal_places.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/0354/3715/files/22203734671.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_off00006380.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6380 | 5716 bytes |
SHA-256: cf77103916a653b73cc170ca7d01dab76b80016b0a33a10cd77aad2d632186f8 |
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font_01_sfnt_off000076ed.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76ED | 10012 bytes |
SHA-256: 86808312683f99ec6a5a80ac201508cbd71a0cca306d3713449725862549451f |
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