MALICIOUS
152
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1204.002 Malicious Link
The PDF contains a large number of embedded links, many pointing to external PDF files hosted on various domains, which is indicative of a link farm. One critical heuristic identified a link to known malicious redirector infrastructure (ttraff.cc). The document body, though partially corrupted, contains the same URL and a reference to a worksheet, suggesting a lure to educational content. The ML classifier also strongly flagged this PDF as malicious.
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.cc/pify?keyword=expand+and+condense+logarithms+works
- http://resiferim.allsaintshighwycombe.org/uploads/1/3/0/7/130776819/lupane_wepomegijumev_nolab_kukawez.pdf
- http://lonop.skarchitects.com/uploads/1/3/1/4/131407312/zobidos-dozubezuwusetem.pdf
- http://files.rjandluke.com/uploads/1/3/2/7/132712006/1052145.pdf
- http://kuzapup.rickerskinderkamp.com/uploads/1/3/0/7/130775320/sujose.pdf
- https://cdn.shopify.com/s/files/1/0432/1126/0062/files/math_sequences_worksheet.pdf
- https://cdn.shopify.com/s/files/1/0437/0671/2219/files/kalinka_sheet_music_piano.pdf
- https://cdn.shopify.com/s/files/1/0428/9980/0217/files/pibebele.pdf
- https://cdn.shopify.com/s/files/1/0431/1361/1413/files/simple_javascript_countdown_timer.pdf
- https://cdn.shopify.com/s/files/1/0432/8338/2427/files/17200541929.pdf
- https://cdn.shopify.com/s/files/1/0431/7088/9892/files/90230727508.pdf
- https://cdn.shopify.com/s/files/1/0437/2224/4250/files/oriflame_catalogue_2020_february.pdf
- https://cdn.shopify.com/s/files/1/0427/9821/9420/files/93813721618.pdf
- https://cdn.shopify.com/s/files/1/0427/8226/1415/files/boporifilubikagej.pdf
- https://cdn.shopify.com/s/files/1/0429/3348/5727/files/vobitipuborulafe.pdf
- https://cdn.shopify.com/s/files/1/0436/0886/6974/files/33298984931.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_off00006d80.bin4a4869349f0062f87c92455a61a1f82b73b7227ff2c62ea6b696564767fb1f8a |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x6D80 | 5668 bytes |
font_01_sfnt_off000080ab.binb7ac5515fb63fccd58037dedeab592d8d7cb790675b6450c2c6523639d609978 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x80AB | 14920 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.