MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
T1204.002 Malicious Link
The PDF document was flagged as malicious by a machine learning classifier and contains a critical heuristic indicating it links to known malicious redirector infrastructure. It also exhibits characteristics of a PDF link farm, with numerous external links, many pointing to Shopify-hosted PDFs. The primary malicious URL identified is https://ttraff.ru/pify?keyword=stipulated+order+of+removal+form, which is likely used to redirect users to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL, reinforcing its role in the attack.
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=stipulated+order+of+removal+form
- http://files.foodbanknca.com/uploads/1/3/0/7/130775196/mubajox.pdf
- http://files.yourpremiersupplies.com/uploads/1/3/1/4/131453934/2da32887c.pdf
- https://cdn.shopify.com/s/files/1/0432/7761/5262/files/34216990872.pdf
- https://cdn.shopify.com/s/files/1/0435/0181/3915/files/12173259630.pdf
- https://cdn.shopify.com/s/files/1/0433/9718/5701/files/rexej.pdf
- https://cdn.shopify.com/s/files/1/0432/0775/3888/files/29192829672.pdf
- https://cdn.shopify.com/s/files/1/0427/5650/5756/files/java_jdk_download.pdf
- https://cdn.shopify.com/s/files/1/0432/8390/6724/files/85443509284.pdf
- https://cdn.shopify.com/s/files/1/0429/8879/8111/files/43617672879.pdf
- https://cdn.shopify.com/s/files/1/0431/8055/6452/files/cute_baby_boy_birth_announcement_template.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.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_off00006799.binbbb727dfe721111e1f36e329417934f987e4a78a6d3de738669ab235105beccb |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6799 | 5172 bytes |
font_01_sfnt_off0000791f.bin8823984f038816de18ae83b0fcc69c490791862f706a54bfa1b1ce0cfd3bfdf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x791F | 9908 bytes |
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