MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a large number of external links, many of which point to domains commonly used in link farms. One critical heuristic identified a link to known malicious redirector infrastructure, specifically 'https://ttraff.cc/pify?keyword=arm+compiler+toolchain+assembler+reference+pdf'. This suggests the document is designed to lure users to malicious sites under the guise of providing a technical reference. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious redirection 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.cc/pify?keyword=arm+compiler+toolchain+assembler+reference+pdf
- http://files.southbeacharts.org/uploads/1/3/0/7/130739239/mifabapinikoxuziles.pdf
- http://files.exclusivedancerecruitment.com/uploads/1/3/1/4/131436967/4351360.pdf
- http://files.mightyscholarspreschool.com/uploads/1/3/1/1/131164488/5486528.pdf
- http://files.hr-safetysolutions.com/uploads/1/3/0/7/130740260/wamuwixulesalifadodi.pdf
- http://files.erikajuran.com/uploads/1/3/0/8/130874328/3316821.pdf
- https://cdn.shopify.com/s/files/1/0431/6954/6395/files/65331352736.pdf
- https://cdn.shopify.com/s/files/1/0432/1856/7335/files/88878822338.pdf
- https://cdn.shopify.com/s/files/1/0437/8460/1758/files/pubopowuxeweloru.pdf
- https://cdn.shopify.com/s/files/1/0430/1350/5185/files/push_git_to_github.pdf
- https://cdn.shopify.com/s/files/1/0432/3727/7855/files/39716890676.pdf
- https://cdn.shopify.com/s/files/1/0434/6213/1869/files/parasitologia_humana_david_pereira_neves.pdf
- https://cdn.shopify.com/s/files/1/0432/9255/7467/files/jekiribepok.pdf
- https://cdn.shopify.com/s/files/1/0428/3501/7884/files/52291777690.pdf
- https://cdn.shopify.com/s/files/1/0434/0878/5562/files/88890662392.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_off00009aa3.bin0cac0dd53bcfa4bb87449c157988eacd8b45f8ff3aca7febf669e8189a027868 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x9AA3 | 5524 bytes |
font_01_sfnt_off0000ad37.binc3175c4a722725ce07989ed896332dbcf76818503d4825c8692e5b24ba0a5dee |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xAD37 | 12124 bytes |
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