MALICIOUS
194
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The presence of numerous external PDF links suggests a link farm or SEO poisoning tactic to distribute malicious content. The ML classifier strongly indicates maliciousness.
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.ru/pify?keyword=pengertian+obat+analgetik+pdf In PDF document text
- http://lerazaki.nyputnamcs.org/uploads/1/3/2/6/132696021/bedibimagabutojudem.pdfIn PDF document text
- http://funoga.lavishsalonhershey.com/uploads/1/3/1/8/131857631/rikadugi.pdfIn PDF document text
- http://files.bouncehopper.com/uploads/1/3/1/3/131379246/pesezow_jekomajezogi_sanewesogoxonu_jazebibemuxupoz.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/1/0435/6879/1713/files/gureratupusomigebedejoxu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/8611/1137/files/15868067748.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1587610690.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/0127/3758/files/tanawidutobevopuxevi.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/3808/7070/files/patoresufus.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4757/4943/files/31939161340.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/3936/7061/files/axis_bank_rtgs_form_2020.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2021/4681/files/66058507870.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4191/5042/files/bup_admission_test_question_bank.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0436/2302/2752/files/article_3_of_the_philippine_constitution.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/8862/5302/files/webitirikagirer.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3858/8584/files/13553897121.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/7523/2153/files/15048088275.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_off0000775f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x775F | 5024 bytes |
SHA-256: d18dfa5d7eb903b41eac465e803ecd7ab78cb85a543b936b52c5f3b5029e3767 |
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font_01_sfnt_off0000886b.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x886B | 10276 bytes |
SHA-256: e3950653651708207a11928fe75c30f825d02c95e21c1ac27fd46c11358aa1fe |
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font_02_sfnt_off0000ab95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAB95 | 4324 bytes |
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176 |
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