PDF malware analysis — malicious · e9af77e072432282

MALICIOUS

PDF

31.9 KB Created: 2020-10-03 08:16:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26

MD5: 3b20d2e6ef5bc979f2670e782ef11f1a SHA-1: 74f9128d169ad6c91d905fb87576bcca9c5f4219 SHA-256: e9af77e072432282494d87ce01303dc6e6f750bb4be18ca15758745e2251bb49

94 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF file contains a link to a known malicious redirector infrastructure, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The ML classifier also flagged this PDF with high confidence. The embedded URL is disguised as a link to a legitimate PDF, likely to trick the user into clicking it, leading to a malicious site.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 3

PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF 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.
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The 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_URL

One 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.me/pify?keyword=principles+of+language+learning+and+teaching+6th+ed.+pdf In PDF document text
- https://site-1036910.mozfiles.com/files/1036910/mewalijodajajipifalutiz.pdfIn PDF document text
- https://site-1036873.mozfiles.com/files/1036873/vosefewibufilomusezera.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/5208/1053/files/phet_projectile_motion_lab_report.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/3152/3239/files/navy_evaluation_form_1610.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0435/2779/8944/files/bezedinu.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0439/2442/2811/files/68393425502.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0470/9525/1102/files/400_years_unblocked.pdfIn PDF document text
- https://uploads.strikinglycdn.com/files/fb5e2c47-0402-4783-a2b4-4cdd855386a2/60059642089.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0431/8376/7713/files/66581526817.pdfIn PDF document text
- https://cdn.shopify.com/s/files/1/0479/1930/0775/files/jinevadelelidevetavuxize.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003f47.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3F47	5604 bytes
SHA-256: `61e15b2396c6350874987a697283383183031657523d7b4df8aeb499ce4fc95a`
`font_01_sfnt_off0000524d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x524D	9556 bytes
SHA-256: `5f2e673951bf2307555e2ee1fb33b0d24b76eada52a4bd21065051de4e297854`

Open this report in the interactive analyzer, or submit your own file for analysis.