MALICIOUS
162
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
The PDF contains a link to a known malicious redirector, ttraff.ru, disguised as a search for an 'Apollo munich health insurance policy'. The document body, though heavily obfuscated, contains similar text and the URL. The presence of a large number of external PDF links suggests a link farm or SEO manipulation tactic, further supported by the PDF_SEO_LINK_FARM heuristic. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 5
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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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Urgency / deadline lure low SE_URGENCY_LUREDocument contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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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.ru/pify?keyword=apollo+munich+health+insurance+policy
- http://files.lucacolaneri.com/uploads/1/3/2/3/132303068/f0c55013a649.pdf
- http://mexen.krownedkrystals.com/uploads/1/3/1/0/131071157/6661169.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0440/8950/7990/files/huckel_rule_of_aromaticity.pdf
- https://cdn.shopify.com/s/files/1/0432/9157/4430/files/united_state_address_example.pdf
- https://cdn.shopify.com/s/files/1/0428/4514/3207/files/38100462148.pdf
- https://cdn.shopify.com/s/files/1/0434/1330/7541/files/21415596646.pdf
- https://cdn.shopify.com/s/files/1/0437/8089/8973/files/98122054984.pdf
- https://cdn.shopify.com/s/files/1/0434/8307/0630/files/94615967570.pdf
- https://cdn.shopify.com/s/files/1/0435/9458/0136/files/27330544921.pdf
- https://cdn.shopify.com/s/files/1/0432/6447/5299/files/carcinoma_ex_pleomorphic_adenoma.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/gojifazuxosupimuron.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000bfb0.bin36fc9c216b1e4a0fb6e69efedeafa63967c153f244e7ff97ae063675ca070ef9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xBFB0 | 5264 bytes |
font_01_sfnt_off0000d167.bineb7cf38c910fb92d7c4b361b7c1d32a0dfd80347e41761c138ac8f34772e419c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xD167 | 12584 bytes |
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