MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains numerous embedded links, many of which point to a link farm hosted on Shopify. One critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=convert+fractions+to+decimals+and+percents+worksheet'. The document body, though partially corrupted, contains text related to educational worksheets, suggesting a lure to trick users into clicking the malicious links. No scripts were extracted from this sample.
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=convert+fractions+to+decimals+and+percents+worksheet
- http://files.canterburynuts.com/uploads/1/3/0/7/130739678/bavulokiwoj.pdf
- http://nuzodape.jjohnsonartist.com/uploads/1/3/1/6/131606295/cd7dd.pdf
- http://files.simplelivingkc.com/uploads/1/3/0/8/130874520/e439217b.pdf
- https://cdn.shopify.com/s/files/1/0432/5307/2022/files/pujojivap.pdf
- https://cdn.shopify.com/s/files/1/0431/8694/6206/files/report_illegal_dumping_dublin.pdf
- https://cdn.shopify.com/s/files/1/0429/0789/3919/files/stay_strong_demi_lovato.pdf
- https://cdn.shopify.com/s/files/1/0429/2447/4531/files/javascript_blob_base64.pdf
- https://cdn.shopify.com/s/files/1/0439/2475/0491/files/jekene.pdf
- https://cdn.shopify.com/s/files/1/0428/9334/4924/files/alphabet_pronunciation_english.pdf
- https://cdn.shopify.com/s/files/1/0454/7146/5630/files/barmeno_bold_free_font.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 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off000061c0.bincef72901c7d32a3fde287dd4f59a7cb87ac1607048e36fe0b34ae54677669e1c |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x61C0 | 5420 bytes |
font_01_sfnt_off00007415.bin4578b8a2b18f0435310573ac731e774b1dbd0b4cd10db3019745a09551089a7f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7415 | 10400 bytes |
font_02_sfnt_off000097b1.bin7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x97B1 | 4324 bytes |
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