MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector (ttraff.cc). The document body, though heavily obfuscated, contains the text 'cell cycle diagram pdf' and the malicious URL, suggesting a lure to trick users into clicking the link. The ML classifier also strongly indicated maliciousness. The presence of many Shopify links suggests an attempt to blend in with benign content, a common tactic in SEO-based spam campaigns.
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=cell+cycle+diagram+pdf
- http://files.oraclefitness.com/uploads/1/3/0/8/130814121/dabuniwusexufe_dulatuvilawes_kadugitodelekum_muvufuzade.pdf
- http://files.smiths2argentina.com/uploads/1/3/2/6/132695560/mugakebebip-rivupi-zirukulejozepe-xakenagenijux.pdf
- http://files.myfoodresearch.com/uploads/1/3/0/7/130738719/fa4ddd56e.pdf
- http://files.royalanimalhealthuniversity.com/uploads/1/3/1/4/131437859/0d9a4a.pdf
- https://cdn.shopify.com/s/files/1/0435/2638/9912/files/articles_rules_and_examples.pdf
- https://cdn.shopify.com/s/files/1/0432/3885/0719/files/repeating_pistol_bloodborne.pdf
- https://cdn.shopify.com/s/files/1/0428/3580/4319/files/85356940779.pdf
- https://cdn.shopify.com/s/files/1/0433/3525/4170/files/tolupada.pdf
- https://cdn.shopify.com/s/files/1/0434/6766/9654/files/zikaxopolut.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jenodilibaxu.pdf
- https://cdn.shopify.com/s/files/1/0434/3103/5032/files/31138087529.pdf
- https://cdn.shopify.com/s/files/1/0436/5071/1705/files/arabic_letters_and_pronunciation.pdf
- https://cdn.shopify.com/s/files/1/0430/8749/5322/files/lovudenesijo.pdf
- https://cdn.shopify.com/s/files/1/0433/0281/3849/files/74367503681.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_off00005d90.bincb43ea197ece8d855154a7acbda3eddc3bf196609b83576108924537420cb92b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5D90 | 5304 bytes |
font_01_sfnt_off00006f8e.bin7fe969ff7b2ec1de1639cfe1995b17cb2b436003c4cb6ed1ec0095e51791e050 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6F8E | 9916 bytes |
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