MALICIOUS
222
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
T1059.001 PowerShell
The PDF contains embedded JavaScript and multiple external links, including a malicious redirector. The document body and heuristics strongly indicate an advance-fee scam, luring the user with a fake guide and a download button to a malicious redirector. The redirector likely leads to further stages of the scam or malware delivery.
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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Malformed active-content stream length medium PDF_MALFORMED_EXPLOIT_STREAM_LENGTHA PDF stream that carries active/exploit-looking content has a declared /Length that does not match the recovered stream body. Malformed stream boundaries and length mismatches are common parser-evasion/supporting evidence around Reader exploit streams.
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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.ru/pify?keyword=ibps+guide+editorial+july+2019 In PDF document text
- http://bigev.incolorartgallery.com/uploads/1/3/1/3/131384771/dekewiwodutawev-tenumino-diwoxewonozomum-tiguputa.pdfIn PDF document text
- http://files.melissafloresdesigns.com/uploads/1/3/0/8/130814283/pusuxokakizadusirav.pdfIn PDF document text
- http://javivo.stampgeneral.com/uploads/1/3/0/7/130775735/ec01e5.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/1/0431/6623/6834/files/bupozemid.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0437/3161/5909/files/29439383024.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0438/2107/2541/files/7561005735.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0454/7398/8774/files/81952913637.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/5654/5433/files/linfoma_de_burkitt_y_vih.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/5109/0071/files/kukekuwekewakeme.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/2738/1920/files/furomazoraw.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0428/7689/5398/files/90640886332.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/4456/9242/files/rabujo.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2288/3735/files/vepabedabanezizodalisu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/4891/8440/files/86954158828.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_off00006a92.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6A92 | 5864 bytes |
SHA-256: 877f6dc49a618c7ea04173959a4c5ee015fdbf0dbd4907a4d3592e82233eaf8a |
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font_01_sfnt_off00007e95.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7E95 | 10588 bytes |
SHA-256: 316a3e18445b4097cf19c2f6d89130443d42a2bff174c58e05e715f90129c9f7 |
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