MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, a technique known as a link farm, designed to obscure the ultimate destination. One of the primary links, 'https://ttraff.ru/pify?keyword=6th+grade+science+reading+comprehension+worksheets+pdf', is flagged as a malicious redirector. The ML classifier also strongly indicated maliciousness. The document body, though heavily obfuscated, contains references to worksheets and URLs, suggesting a lure to trick users into clicking malicious links.
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=6th+grade+science+reading+comprehension+worksheets+pdf
- http://files.missionpriests.com/uploads/1/3/1/4/131452783/barure.pdf
- http://files.aycliffe.net/uploads/1/3/0/7/130775441/mopikumuzefewu.pdf
- http://files.kencarder.com/uploads/1/3/1/8/131871704/9606093.pdf
- https://cdn.shopify.com/s/files/1/0429/5573/5203/files/59683779568.pdf
- https://cdn.shopify.com/s/files/1/0428/1512/7708/files/papirulukejawukegomipomu.pdf
- https://cdn.shopify.com/s/files/1/0436/8583/9003/files/90579910057.pdf
- https://cdn.shopify.com/s/files/1/0433/0110/9920/files/mosis.pdf
- https://cdn.shopify.com/s/files/1/0431/5627/5362/files/dolit.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/94448736580.pdf
- https://cdn.shopify.com/s/files/1/0432/1994/3579/files/pulugonenewizu.pdf
- https://cdn.shopify.com/s/files/1/0430/0115/1651/files/zikanas.pdf
- https://cdn.shopify.com/s/files/1/0447/9208/6685/files/bncc_ciencias_naturais.pdf
- https://cdn.shopify.com/s/files/1/0428/2672/7580/files/xusezitifupas.pdf
- https://cdn.shopify.com/s/files/1/0441/3744/7576/files/bobcat_610_specs.pdf
- https://cdn.shopify.com/s/files/1/0437/8784/5790/files/a_psalm_of_life.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_off000083e4.bine53e7dff7e3b4586cf3c3a71e93588c173181de6cabd8664a7ab338cdb75903c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x83E4 | 5752 bytes |
font_01_sfnt_off00009760.bin63a8ed4a5eeb2a3d55c3297f2529c03ec9250cca7f18d7e107a23c8230b96f80 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9760 | 10284 bytes |
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