MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF file contains a large number of embedded links, many of which point to external resources. One of the primary links, 'https://ttraff.ru/pify?keyword=solubility+curve+problems+worksheet', is flagged as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting a deliberate attempt to direct users to potentially harmful content. The presence of numerous Shopify links, while some are benign, contributes to a link farm tactic.
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=solubility+curve+problems+worksheet
- http://vokek.steamychef.com/uploads/1/3/1/4/131482975/wofine_gafoxe_mopojag_kukonoz.pdf
- http://files.trebor-ts.com/uploads/1/3/1/8/131871690/4fa93.pdf
- http://files.encorecarpetcare.com/uploads/1/3/0/7/130739542/kepajiduziva.pdf
- https://cdn.shopify.com/s/files/1/0448/1577/7954/files/465745274.pdf
- https://cdn.shopify.com/s/files/1/0437/3676/0485/files/34607004543.pdf
- https://cdn.shopify.com/s/files/1/0437/1460/9303/files/63789838516.pdf
- https://cdn.shopify.com/s/files/1/0428/4504/4892/files/15298877768.pdf
- https://cdn.shopify.com/s/files/1/0433/7857/3464/files/37615614654.pdf
- https://cdn.shopify.com/s/files/1/0431/2684/9700/files/53292895650.pdf
- https://cdn.shopify.com/s/files/1/0433/0881/0398/files/texawanugebexited.pdf
- https://cdn.shopify.com/s/files/1/0437/6546/5245/files/cbre_north_america_cap_rate_survey_h2_2020.pdf
- https://cdn.shopify.com/s/files/1/0433/9014/0572/files/anne_ancelin_schtzenberger_ae_mes_aeux.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_off000053af.bine7688d106ac422cdf10ef85a4b9e9442fec2b6eb5f7788fae3331f3eaa54b5f3 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x53AF | 5524 bytes |
font_01_sfnt_off00006664.bin5d2ebd5e689cb8ee24bcacabd2268f620cd5882c02dfb6ac66b563dd3b786167 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6664 | 10188 bytes |
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