MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which host PDF files. The ML classifier strongly indicated maliciousness. The primary attack vector appears to be social engineering via a deceptive link within the document, aiming to redirect the user to a malicious site.
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=wintrobe+s+clinical+hematology+pdf+download
- http://files.fldvipn.com/uploads/1/3/1/3/131398008/boxiwisupipufuletus.pdf
- http://kolokulen.judithrpetersonphotography.com/uploads/1/3/0/7/130776485/5917258.pdf
- http://dezis.pineyflatsumconline.org/uploads/1/3/1/6/131606289/ac2a6563a4329.pdf
- http://files.palmgrovemennonitechurch.com/uploads/1/3/0/8/130874029/wizajanug-galezatus-duwabaso.pdf
- http://files.dtctravel.com/uploads/1/3/2/8/132815924/dunivekoguvukisudu.pdf
- https://cdn.shopify.com/s/files/1/0437/3191/0821/files/list_of_justice_league_episodes.pdf
- https://cdn.shopify.com/s/files/1/0450/9509/2376/files/central_machine_wood_lathe.pdf
- https://cdn.shopify.com/s/files/1/0436/3495/0304/files/14083322970.pdf
- https://cdn.shopify.com/s/files/1/0431/4831/2738/files/plan_de_auditoria_interna_ejemplo.pdf
- https://cdn.shopify.com/s/files/1/0433/7824/5781/files/pull_all_branches_git.pdf
- https://cdn.shopify.com/s/files/1/0439/4532/8808/files/66306901308.pdf
- https://cdn.shopify.com/s/files/1/0429/3702/4668/files/rodafawifidi.pdf
- https://cdn.shopify.com/s/files/1/0430/8857/6661/files/80895901499.pdf
- https://cdn.shopify.com/s/files/1/0435/7311/7091/files/zojajemumurevegivumer.pdf
- https://cdn.shopify.com/s/files/1/0433/2997/8526/files/bujuledojo.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_off00004d5b.bin930b43cabd4e9eb69ba396d6d382d88a4cf34d03b331b360ce13b9fd282d3592 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4D5B | 5916 bytes |
font_01_sfnt_off0000616a.binabb9d4a751e40d1e5ca4da7b746bafc846a296c568f9cf9391476265be7c43ba |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x616A | 9860 bytes |
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