MALICIOUS
202
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body and embedded URL suggest a lure related to an 'answer key', likely to trick the user into clicking the malicious link. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, further supporting a malicious redirection scheme.
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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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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Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTONDocument contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
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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=hssc+clerk+answer+key+21+september+2020+pdf In PDF document text
- http://files.softechinc.net/uploads/1/3/1/4/131453284/wejux_kizowukop_zorigonejujibud.pdfIn PDF document text
- http://files.dadempire.com/uploads/1/3/1/4/131453214/lijevuxeluj_palamilo_xexavarimova.pdfIn PDF document text
- http://files.manalily.com/uploads/1/3/0/8/130814057/62875f5fef7.pdfIn PDF document text
- http://files.samanthaecooper.com/uploads/1/3/0/7/130739011/xevolabemideluguf.pdfIn PDF document text
- http://files.catcollaborative.com/uploads/1/3/0/7/130740018/deluw.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/0629/5201/files/92165807824.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/6761/3089/files/kodewarebe.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1758/5308/files/formula_auditing_in_excel_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8973/1479/files/99431584280.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/8145/7061/files/10798661711.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/1312/8863/files/kubudikekaxofajami.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/1451/1001/files/fukokev.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/3180/4574/files/tower_of_heaven.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/66689816557.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/8166/2628/files/11053592308.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7178/9469/files/46332163436.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0427/9848/1564/files/surovenojaxupigixakus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4371/7274/files/bioelectronics_book.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000880d.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x880D | 5988 bytes |
SHA-256: 58059aedcf0dcf5a59912f555a12d7a96367aefab34b59b9b0774ec40764b40e |
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font_01_sfnt_off00009c76.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9C76 | 11304 bytes |
SHA-256: 17dc903678fae545edc00c3e2a27348d7c758b08a22d541d196141a7f650b009 |
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font_02_sfnt_off0000c1f6.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xC1F6 | 8416 bytes |
SHA-256: 84362280dcf1c4b816cf9b359bb20a03e48d9c0f2a0b8be3bea681ede427a65f |
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