MALICIOUS
154
Risk Score
Malware Insights
MITRE ATT&CK
T1566.002 Spearphishing Attachment
T1059.001 PowerShell
The PDF contains a malicious redirector link disguised as an 'acceptance letter format for college' to lure victims. It also features a large number of external PDF links, many hosted on Shopify, likely for SEO poisoning or to obscure the malicious redirector. The ML classifier 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=acceptance+letter+format+for+college
- http://zudobidi.vfw4809norfolk.org/uploads/1/3/0/8/130814328/4b465bd5.pdf
- http://files.gryffehigh.com/uploads/1/3/1/4/131453429/63ff83bb0b28.pdf
- http://files.ntfbstophunger.org/uploads/1/3/1/4/131438629/b7a8ab1b.pdf
- http://files.mytotalnutrition.com/uploads/1/3/0/7/130775286/losatusimetegusebow.pdf
- https://cdn.shopify.com/s/files/1/0431/3631/9645/files/lofifubisav.pdf
- https://cdn.shopify.com/s/files/1/0431/8828/9694/files/sozuweva.pdf
- https://cdn.shopify.com/s/files/1/0433/7418/2563/files/sezapigajodutefozarewix.pdf
- https://cdn.shopify.com/s/files/1/0432/1342/2753/files/12782397976.pdf
- https://cdn.shopify.com/s/files/1/0434/0511/5544/files/learning_python_beginner.pdf
- https://cdn.shopify.com/s/files/1/0430/9565/4554/files/zekozebefoviraze.pdf
- https://cdn.shopify.com/s/files/1/0430/9381/9541/files/38165415412.pdf
- https://cdn.shopify.com/s/files/1/0433/5396/4712/files/dinosepimupezutizaxeb.pdf
- https://cdn.shopify.com/s/files/1/0430/8746/2551/files/besijekirewot.pdf
- https://cdn.shopify.com/s/files/1/0436/7666/3961/files/gakoj.pdf
- https://cdn.shopify.com/s/files/1/0431/2186/8960/files/berlin_u_bahn_map_2020.pdf
- https://cdn.shopify.com/s/files/1/0432/1044/0862/files/50730870933.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_off00007dbd.binba19ee4e8ad42a5d6dc4b470371b0793a7511617ea715c550e669c090040182b |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x7DBD | 4884 bytes |
font_01_sfnt_off00008e32.binb88bbea1a8c5c8a24768a3206bd2681562b94533fa5efadd51ebd5cd92023731 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x8E32 | 10676 bytes |
font_02_sfnt_off0000b2a1.bina542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xB2A1 | 4324 bytes |
Open this report in the interactive analyzer, or submit your own file for analysis.