MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, however, redirects to 'ttraff.cc', a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Medical dictionary oxford free' and the malicious URL, suggesting a lure to trick users into clicking the malicious link. The ML classifier also strongly indicated maliciousness.
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.cc/pify?keyword=medical+dictionary+oxford+free
- http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
- http://lopufosix.donateoakland.org/uploads/1/3/1/1/131164250/lipunir_dufumavuzagaxo_bolededopaze_zedunajakogite.pdf
- https://cdn.shopify.com/s/files/1/0432/6037/9286/files/42436048926.pdf
- https://cdn.shopify.com/s/files/1/0428/5209/0022/files/before_we_get_married_novel_ayamei.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xugifewelogukepebokiz.pdf
- https://cdn.shopify.com/s/files/1/0434/0210/0899/files/82668825371.pdf
- https://cdn.shopify.com/s/files/1/0435/9074/6271/files/classes_of_antidiabetic_drugs.pdf
- https://cdn.shopify.com/s/files/1/0429/8987/9445/files/92650257802.pdf
- https://cdn.shopify.com/s/files/1/0431/8684/7903/files/anestesia_epidural_baja_en_bovinos.pdf
- https://cdn.shopify.com/s/files/1/0428/5657/9228/files/91361821101.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00005c21.bin0e8ffa07e7f42dc7e4f35205d791bc4d931e91d67a180ea8e91f933066e37740 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5C21 | 5012 bytes |
font_01_sfnt_off00006d48.binaf6646f16a0b2f4226c11dfbe5c922f5eac872c48ca7864049670dbec42dcbff |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D48 | 10624 bytes |
font_02_sfnt_off000091c4.bin4354bd37e85197a997b2f6c8c8698034d2711068b41d1b66819094364c364bcc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x91C4 | 16544 bytes |
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