MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF contains numerous embedded links, including one pointing to a known malicious redirector at 'https://ttraff.ru/pify?keyword=fight+song+piano+sheet+music+printable'. The document body, though heavily obfuscated, also contains this URL, suggesting a lure to trick users into downloading further malicious content. The ML classifier strongly indicated maliciousness, supporting the presence of a malicious redirector.
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=fight+song+piano+sheet+music+printable
- http://sekaketen.nwarcticea.org/uploads/1/3/1/3/131398368/5963204.pdf
- http://weluzaru.velez-lab.com/uploads/1/3/1/1/131164250/4894116.pdf
- http://files.anchoragemidwife.com/uploads/1/3/1/3/131381231/5499299.pdf
- http://files.funkyiceclothing.com/uploads/1/3/2/8/132815003/4469808.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/figarawevig.pdf
- https://cdn.shopify.com/s/files/1/0433/2804/5209/files/55438167420.pdf
- https://cdn.shopify.com/s/files/1/0434/0239/5798/files/2729089708.pdf
- https://cdn.shopify.com/s/files/1/0429/9096/0799/files/difikonagawafamomibarel.pdf
- https://cdn.shopify.com/s/files/1/0437/3164/8661/files/98849017994.pdf
- https://cdn.shopify.com/s/files/1/0428/8308/8547/files/5893109254.pdf
- https://cdn.shopify.com/s/files/1/0431/5712/7336/files/20473760834.pdf
- https://cdn.shopify.com/s/files/1/0434/2982/2631/files/kulupe.pdf
- https://cdn.shopify.com/s/files/1/0438/2218/6656/files/comox_recreation_centre_guide.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/
- http://scripts.sil.org/OFL
Extracted artifacts 2
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off00004a76.bin5c2048fd7e369a7b380a9df5b53226c62d4ab1f32072390f6de301aa8fc33e1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x4A76 | 5444 bytes |
font_01_sfnt_off00005ccb.bina51cdbd3bb813b17eb407dfef940b611fd761c4724772aa95cab0dd583ead9fc |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x5CCB | 10040 bytes |
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