MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains a link disguised as an antivirus update, which redirects to a malicious domain. This is further supported by heuristics indicating a malicious redirector link and a PDF link farm. The document body and embedded URLs suggest a social engineering attempt to trick the user into clicking the malicious link.
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/pify?keyword=avast+free+antivirus+definition+update
- http://files.puressecosmetics.com/uploads/1/3/0/9/130969498/1643245.pdf
- http://lasebof.alamancepride.org/uploads/1/3/1/4/131406149/ef6df7372d.pdf
- http://rujog.friendsoflaughingbuckfarm.org/uploads/1/3/1/4/131407995/4579204.pdf
- https://cdn.shopify.com/s/files/1/0438/1625/5645/files/gebipekazij.pdf
- https://cdn.shopify.com/s/files/1/0432/7922/0891/files/52511878958.pdf
- https://cdn.shopify.com/s/files/1/0435/7577/1304/files/edit_file_online_in_adobe_acrobat_reader.pdf
- https://cdn.shopify.com/s/files/1/0428/5261/4311/files/kekanijofupesun.pdf
- https://cdn.shopify.com/s/files/1/0435/0833/4751/files/44508197380.pdf
- https://cdn.shopify.com/s/files/1/0432/4956/5853/files/cadette_woodworking_badge.pdf
- https://cdn.shopify.com/s/files/1/0439/1151/2232/files/saxedumalora.pdf
- https://cdn.shopify.com/s/files/1/0432/2613/6731/files/kokufezizo.pdf
- https://cdn.shopify.com/s/files/1/0434/9142/6469/files/basic_isometric_drawing.pdf
- https://cdn.shopify.com/s/files/1/0437/6422/0055/files/tefusakijepevil.pdf
- https://cdn.shopify.com/s/files/1/0435/4405/1864/files/jizozozalekulovizapik.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_off00006790.bin11135b9c85992a07be5d5e6e697edaf10049d83ca078a7cd8ef2b9cea9f63ac7 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6790 | 5052 bytes |
font_01_sfnt_off000078d0.bina5d14f4b37d5ac42fd757d54fbb6d35f21270c0b53cd4f342b4d52a033d4874e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x78D0 | 10104 bytes |
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