MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.ru). The document body, though heavily obfuscated, contains text related to "adding and subtracting fractions worksheets and answers pdf", suggesting a lure to disguise the malicious intent. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a phishing or scam attempt.
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.ru/pify?keyword=adding+and+subtracting+fractions+worksheets+and+answers+pdf
- http://kimatebak.bhi5.com/uploads/1/3/1/4/131408738/3796223.pdf
- http://files.stcharlespilgrimages.com/uploads/1/3/1/4/131438500/0a599d3808.pdf
- http://lipoj.sbcsocialsciences.com/uploads/1/3/0/7/130739415/6778664.pdf
- http://files.medwellnessclinic.com/uploads/1/3/1/8/131871518/e572dfe8633c97.pdf
- http://files.c2lconference.com/uploads/1/3/1/4/131453897/gugadelug_gilodajol.pdf
- https://cdn.shopify.com/s/files/1/0431/8294/8506/files/pozafevase.pdf
- https://cdn.shopify.com/s/files/1/0429/2198/4166/files/98834474026.pdf
- https://cdn.shopify.com/s/files/1/0448/0902/7735/files/cappella_palatina_aquisgrana.pdf
- https://cdn.shopify.com/s/files/1/0437/7578/7162/files/35061318781.pdf
- https://cdn.shopify.com/s/files/1/0432/3213/3278/files/interferences_in_atomic_absorption_spectroscopy.pdf
- https://cdn.shopify.com/s/files/1/0430/1111/3123/files/type_racer_hacks.pdf
- https://cdn.shopify.com/s/files/1/0435/2717/6343/files/counting_worksheets_for_preschoolers.pdf
- https://cdn.shopify.com/s/files/1/0436/6116/4697/files/bupijomutu.pdf
- https://cdn.shopify.com/s/files/1/0431/7921/2959/files/68440234156.pdf
- https://cdn.shopify.com/s/files/1/0437/5055/5799/files/shri_suktam.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_off000076ca.bindeb99a88be5e6ff840a54a338314daf41c2848e760d5d4672b5d65c37d15e587 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x76CA | 5672 bytes |
font_01_sfnt_off00008a26.bin65e5d3a8b3bcfb4a503c647ef5f6c7c7ef08a15f82b549710d71eb32b333989d |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8A26 | 10128 bytes |
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