PDF malware analysis — malicious · 73fbe89d68fa3b44

MALICIOUS

PDF

37.6 KB Created: 2020-08-30 20:23:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 387a66cff5173d34a486a8cb20d77ace SHA-1: 76ee8cdcdf4375bd7622d0b9973b98bc6e86e9dc SHA-256: 73fbe89d68fa3b44370713d8a619f447e5b90335ac73c86992a1927e03ced179

154 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a prominent link to a malicious redirector, disguised as a legitimate download. The document body and heuristics indicate a link farm strategy, likely to obscure the malicious destination. While no scripts were directly extracted, the PDF structure and embedded URLs suggest an attempt to redirect users to malicious infrastructure, potentially for further exploitation or phishing.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

Heuristics 4

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.
Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small 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_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.cc/wix?keyword=a+guide+to+econometrics+pdf+download
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- https://cdn.shopify.com/s/files/1/0432/2266/3325/files/51156932819.pdf
- https://cdn.shopify.com/s/files/1/0432/3993/2067/files/free_holiday_stationery_border_templates.pdf
- https://cdn.shopify.com/s/files/1/0435/7442/7806/files/sajelanobonuba.pdf
- https://cdn.shopify.com/s/files/1/0433/8758/4661/files/strength_of_materials_objective_type_questions.pdf
- https://cdn.shopify.com/s/files/1/0432/5156/4707/files/56595417029.pdf
- https://cdn.shopify.com/s/files/1/0437/1418/3323/files/weputebimip.pdf
- https://cdn.shopify.com/s/files/1/0432/9383/5432/files/25849445517.pdf
- https://cdn.shopify.com/s/files/1/0432/4933/6483/files/ti-_84_plus_ce_manual.pdf
- https://static.usrfiles.com/ugd/b8c837_e7a8f57579a54e8bb5522ce5f8d24548.pdf
- https://static.usrfiles.com/ugd/b8c837_11de0c5dc2014f0196e3ad40bd25b310.pdf
- https://static.usrfiles.com/ugd/b8c837_e140007085bc436899dd611ba47cae93.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_off000054c4.bin` `2b798ecb26dd1d6b206cb88a6577cfaebe43fcb372228e65c9eb11aebceaedb5`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x54C4	5556 bytes
`font_01_sfnt_off000067a3.bin` `b9328c03104619dbda692a326a3ff9fcc6b28a203c524df59d3ca44fc7418b81`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67A3	10100 bytes

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