MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a high number of embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is https://ttraff.cc/wb?keyword=making%20bar%20graph%20worksheets%204th%20grade. The ML classifier also strongly indicated maliciousness. The document body, though corrupted, contains references to the malicious URL and benign-looking PDF filenames, suggesting a lure to disguise the malicious intent.
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/wb?keyword=making%20bar%20graph%20worksheets%204th%20grade
- http://files.taniamansfield.com/uploads/1/3/1/8/131871488/9260629.pdf
- http://files.21stcenturyfarm.com/uploads/1/3/2/6/132696171/zenoz-pemolegolumozef.pdf
- http://files.come2faith.net/uploads/1/3/0/9/130969545/tavip-rugifudidebutir-baxupiguxom-sikuwujaraxun.pdf
- http://files.coupadvantageportal.com/uploads/1/3/0/8/130874403/tafixu.pdf
- http://files.richardellishair.co.uk/uploads/1/3/1/4/131437513/9046421.pdf
- https://cdn.shopify.com/s/files/1/0431/8904/3358/files/jepuxisuwefinegopibulo.pdf
- https://cdn.shopify.com/s/files/1/0430/6976/7842/files/80325559338.pdf
- https://cdn.shopify.com/s/files/1/0430/5649/6791/files/96735644193.pdf
- https://cdn.shopify.com/s/files/1/0433/0523/8688/files/99733445690.pdf
- https://cdn.shopify.com/s/files/1/0441/0625/2440/files/the_nexus_minecraft.pdf
- https://cdn.shopify.com/s/files/1/0428/0070/9791/files/nixiro.pdf
- https://cdn.shopify.com/s/files/1/0433/2794/6904/files/17227608912.pdf
- https://cdn.shopify.com/s/files/1/0433/5557/0341/files/xajadap.pdf
- https://cdn.shopify.com/s/files/1/0429/1385/7692/files/9507854250.pdf
- https://cdn.shopify.com/s/files/1/0437/7542/6722/files/vexudironerufaga.pdf
- https://cdn.shopify.com/s/files/1/0432/9252/4702/files/kizapufoxuw.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_off00006c1c.binb8a2f9ad6404f1841d52e899a2900eec058c9192995a3e70d7cd205d9423419f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6C1C | 5576 bytes |
font_01_sfnt_off00007f2c.binc2bf28e38b33f84100a63deba0797e2c486caa93eecc12b5fb721283c1b1169f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7F2C | 10024 bytes |
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