MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains numerous embedded links, with the primary one leading to a known malicious redirector. The document body, though heavily obfuscated, appears to contain the title 'Nrc assam draft list 2020 pdf', suggesting a lure for users searching for this information. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the malicious nature of the redirector, and 'PDF_SEO_LINK_FARM' indicates a large number of outbound links, likely for SEO manipulation or to host further malicious content. No scripts were extracted, but the primary attack vector is the redirection to a malicious URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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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=nrc+assam+draft+list+2020+pdf In PDF document text
- http://tupuxa.stjvschool.org/uploads/1/3/0/7/130776418/6e61536473c0ad2.pdfIn PDF document text
- http://files.boilingfrogproductions.com/uploads/1/3/0/8/130813732/zesanivegokemut-givod-bobuwovabifa.pdfIn PDF document text
- http://wetov.mtslma.com/uploads/1/3/2/7/132740214/nukupizelaraz.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/1/0430/4555/2290/files/kokenunowizenager.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/1596/8680/files/body_parts_in_japanese.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/4156/1503/files/45564840199.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/4586/3067/files/besoin_en_fond_de_roulement_calcul.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/3046/3142/files/88971005399.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1643/8438/files/kuroborowogixujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/9703/0805/files/sizavovivukub.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9593/9488/files/north_america_political_outline_map.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/7311/7091/files/genixujizuwujoliziril.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/8163/8812/files/99729536227.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0445/3584/0932/files/how_do_you_change_your_minecraft_name.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
- http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
- http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000069dd.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x69DD | 5544 bytes |
SHA-256: 3402d688e413802d26d49aa82b6b1a642729f2ffa44385afef0ab310762b7485 |
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font_01_sfnt_off00007c92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7C92 | 4592 bytes |
SHA-256: 2b0b2ba6e24c5a4d44c1dd9b3ea6005ae8c665ed4583b9a8ebd2b076e1baceab |
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font_02_sfnt_off00008b6b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8B6B | 10488 bytes |
SHA-256: fd05c71d01a76466f23fbb345574246e075435502776990c7e81303e63c92798 |
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