MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
T1059.007 JavaScript
T1203 Exploitation for Client Execution
The PDF contains embedded links that redirect to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to 'performance appraisal methods advantages and disadvantages'. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous external links indicates a link farm or redirection scheme. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.
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=performance+appraisal+methods+advantages+and+disadvantages
- http://bowew.lgbtwalco.org/uploads/1/3/1/4/131453134/47823f.pdf
- http://files.goripple.org/uploads/1/3/2/8/132814241/6399721.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0430/4217/7181/files/52145645349.pdf
- https://cdn.shopify.com/s/files/1/0437/6772/6232/files/89448370197.pdf
- https://cdn.shopify.com/s/files/1/0428/7247/1715/files/35355199466.pdf
- https://cdn.shopify.com/s/files/1/0436/9616/0921/files/bugofixasafomezepob.pdf
- https://cdn.shopify.com/s/files/1/0431/6708/8791/files/how_to_increase_height_by_exercise.pdf
- https://cdn.shopify.com/s/files/1/0433/1339/7924/files/wakegadalitenat.pdf
- https://cdn.shopify.com/s/files/1/0435/7321/5387/files/2577116081.pdf
- https://cdn.shopify.com/s/files/1/0432/4042/3587/files/trx_basic_exercises.pdf
- https://cdn.shopify.com/s/files/1/0431/5276/9192/files/water_supply_reliability_theory.pdf
- https://cdn.shopify.com/s/files/1/0429/1995/2550/files/vasusatof.pdf
- https://cdn.shopify.com/s/files/1/0433/8037/5710/files/8008673568.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_off0000601d.bin67c0527af85575a1912c5b70d514eb0b156c3359a239e7903bbe0112411d1af9 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x601D | 5632 bytes |
font_01_sfnt_off00007311.bin3ad4aa76d8307e329870ed66273d4f4e2024f21112470ed1b29163f818934bf5 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7311 | 10336 bytes |
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