MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF document contains a lure related to an 'online application form for nsfas 2019' and embeds a link to a known malicious redirector. The presence of a link farm and a call-to-action phrase further supports a malicious intent to redirect the user to harmful content. No scripts were extracted, but the PDF structure and embedded URLs indicate a phishing or redirection attack.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 7
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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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Callback phishing phone lure medium SE_CALLBACK_LUREDocument asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
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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.cc/pify?keyword=online+application+form+for+nsfas+2019 In PDF document text
- http://files.connecticutghosthunter.com/uploads/1/3/1/3/131381109/kuluba.pdfIn PDF document text
- http://simuderiz.skipperstone.com/uploads/1/3/1/3/131379578/guzemawitadigox-pesesakevu-pusabirawifo.pdfIn PDF document text
- http://files.letspaintwithauntdeb.com/uploads/1/3/0/8/130874518/tifojo.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/1/0433/4272/5275/files/38032991876.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/3536/1442/files/90591419001.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/7093/7498/files/nukasimobaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0434/5308/7901/files/laws_of_algebra_of_sets.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/9751/2354/files/samude.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2630/0575/files/pazip.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/6137/1290/files/67981790832.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2862/7099/files/biliwonituwilobagefurixof.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7863/2095/files/58089154742.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5448/1058/files/komosofakuwegufupu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/7664/9124/files/wipemewolurofu.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_off00006451.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6451 | 5672 bytes |
SHA-256: 3d036170af3325e47dc41a35795c5ebf798c9a451200fdad0cee19983706fc1f |
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font_01_sfnt_off00007785.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7785 | 9968 bytes |
SHA-256: 014f5cd44583898be8bd5d326235e4ac3027354f7182d45fa3db160f7a90249c |
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