MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link to a known malicious redirector, ttraff.com, which is disguised as a guide for combining PDF files. The document body and embedded URLs suggest a social engineering lure to drive traffic to malicious infrastructure. The ML classifier strongly indicated maliciousness, and the presence of numerous SEO-optimized PDF links further supports a malicious intent to distribute harmful content.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
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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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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/wb?keyword=how%20to%20combine%20pdf%20files%20in%20adobe%20reader%207
- http://files.alohabaseballclub.com/uploads/1/3/1/0/131070604/9603816.pdf
- http://suforob.lebaneseaustralianfriendship.com/uploads/1/3/1/6/131636725/lisaxakilewulas_somulizezis_titip_muzofa.pdf
- https://cdn.shopify.com/s/files/1/0428/6542/6598/files/kuvujeponefepopi.pdf
- https://cdn.shopify.com/s/files/1/0428/9291/8937/files/zununavolune.pdf
- https://cdn.shopify.com/s/files/1/0433/2797/9678/files/the_principal_source_wow_classic.pdf
- https://cdn.shopify.com/s/files/1/0440/6162/2437/files/learn_guitar_chords_for_beginners.pdf
- https://cdn.shopify.com/s/files/1/0433/4908/2264/files/13032973924.pdf
- https://cdn.shopify.com/s/files/1/0438/3011/6509/files/printable_2018_monthly_calendar.pdf
- https://cdn.shopify.com/s/files/1/0440/7758/0453/files/29060373362.pdf
- https://cdn.shopify.com/s/files/1/0428/9747/3699/files/xuvuwove.pdf
- https://cdn.shopify.com/s/files/1/0431/6397/5835/files/64459149164.pdf
- https://cdn.shopify.com/s/files/1/0431/3497/6157/files/45527160454.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/12319118289.pdf
- https://cdn.shopify.com/s/files/1/0434/4345/4102/files/letter_e_tracing_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xozujegemuzudileruzodedus.pdf
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000613c.binf88aa023c008fff26a539ace821ca2d833db078c2b8bf49aec1a56cc38732e92 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x613C | 5576 bytes |
font_01_sfnt_off00007428.bin0dc1987b00c55cbba4f1ccc0efdeafa41a2643fca7c388f853b771eab0a817b8 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7428 | 10220 bytes |
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