MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains the text 'Blake chart worksheet' and the malicious URL, suggesting a lure to trick the user into clicking the link. The ML classifier also strongly indicated maliciousness.
Machine Learning
- Nyx PDF Classifier malicious score 1.0000
Heuristics 4
-
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.
-
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.
-
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.
-
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=blake+chart+worksheet
- http://files.maetcheconstruction.com/uploads/1/3/1/8/131856389/871ae46e87.pdf
- http://bovojoru.brian-nacov.com/uploads/1/3/0/8/130874180/cab17d.pdf
- http://zijog.firstathens.org/uploads/1/3/1/6/131606629/8911a3be1e27db.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/guwesimutetalajizobanubel.pdf
- https://cdn.shopify.com/s/files/1/0428/9187/0375/files/boost_c_latest.pdf
- https://cdn.shopify.com/s/files/1/0436/7525/4937/files/piposi.pdf
- https://cdn.shopify.com/s/files/1/0430/5803/6889/files/carteret_county_news_times_crime_report.pdf
- https://cdn.shopify.com/s/files/1/0447/3035/1770/files/6th_grade_probability_worksheets.pdf
- https://cdn.shopify.com/s/files/1/0430/6635/9962/files/54959176463.pdf
- https://cdn.shopify.com/s/files/1/0429/6821/9799/files/pizamebulofajajaxus.pdf
- https://cdn.shopify.com/s/files/1/0431/9048/5150/files/lipid_lowering_drugs_pharmacology.pdf
- https://cdn.shopify.com/s/files/1/0431/7039/8362/files/ashrae_1997_hvac_fundamentals_handbook.pdf
- https://cdn.shopify.com/s/files/1/0431/9199/2480/files/kifeg.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_off000054d1.bin990f76fb78389aba7d479b279175d0a88f5657dbd161e67a1918b7d996a28346 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x54D1 | 5092 bytes |
font_01_sfnt_off0000662c.bin25813662643638c9abeb37d2557eb1973ccbf48397472b75eaadd98d90ed995e |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x662C | 9832 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.