MALICIOUS
234
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF file contains a significant number of embedded links, with many pointing to a redirector service (ttraff.cc). This suggests an attempt to leverage SEO poisoning or phishing tactics by directing users to malicious content. The presence of a visible LOLBin command execution instruction indicates potential for further malicious activity, such as downloading and executing a second-stage payload. The document body itself is heavily obfuscated but contains references to the redirector URL.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 6
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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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LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMANDExtracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
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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=aefi+guidelines+2019 In PDF document text
- http://files.prehistoriccollector.com/uploads/1/3/0/9/130969139/pavapew.pdfIn PDF document text
- http://files.pitchperfectok.com/uploads/1/3/1/3/131383314/634068.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/1/0432/7692/7142/files/gafisodaf.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0430/1121/1417/files/robotic_arm_design_project.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0429/2660/4447/files/malopixikixikekewufovafon.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/5624/1557/files/87299736511.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0455/4385/0149/files/textbook_of_oncology.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0433/1261/1481/files/cmd_commands_for_windows_7_free_download.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0444/5909/8279/files/boardroom_book_free.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/3947/3314/files/55330846939.pdfIn macro / runtime command snippet
- https://cdn.shopify.com/s/files/1/0428/7512/5919/files/29306766075.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7945/0272/files/77386609029.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/9297/4499/files/accounting_concepts_with_examples.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0432/7482/9987/files/79136151172.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/7950/7870/files/personal_financial_planning_report_sample.pdfIn PDF document text
- https://www.who.int/vaccine_saIn 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_off00006785.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6785 | 5240 bytes |
SHA-256: f22c409940661f0be6dbe4551f21968f6622dbeea312c7bd575cf989e0308a64 |
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font_01_sfnt_off00007977.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7977 | 15220 bytes |
SHA-256: bf1693b2d403be928928907741715c922b2e8b15a9f5795abca60421c6355bfc |
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