Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2726019bde5a31a…

MALICIOUS

PDF

27.3 KB Created: 2020-10-31 15:18:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62c0bcb63168cb0b679ab38d5a0923a2 SHA-1: e431842260efd9cf0decf35ca6d0ce8e3c511a14 SHA-256: d2726019bde5a31a9c7d577a1ad2aeacecd89a9582a574e842de8108ac120e8a
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a link that redirects to a known malicious URL, identified as a redirector. The document also functions as a link farm, containing numerous external PDF links, likely to obscure the malicious redirector. The ML classifier strongly indicated maliciousness, and the embedded URL is a critical finding.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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.
  • 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.
  • 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://ggtraff.ru/strik?keyword=psychology%2527s+history+and+approaches+answer+key
    • https://gokefezenomi.weebly.com/uploads/1/3/4/0/134040807/neligawodakisot.pdf
    • https://xikosenazegan.weebly.com/uploads/1/3/0/7/130739601/tujigagabisolusa.pdf
    • https://joxenawofin.weebly.com/uploads/1/3/4/3/134342561/buxuletuwizux-vudixixojak-luloriwu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/kimoweworape/pathfinder_ranged_flanking.pdf
    • https://uploads.strikinglycdn.com/files/d62eb333-2363-4019-ac2e-fc840bf7dcf1/chocolate_frog_mold_harry_potter.pdf
    • https://s3.amazonaws.com/tadovu/nugevonuves.pdf
    • https://s3.amazonaws.com/juxatop/99812225187.pdf
    • https://uploads.strikinglycdn.com/files/f203c5bd-1c9e-45b1-b2a6-e3adf2240013/57301727567.pdf
    • https://uploads.strikinglycdn.com/files/513ff621-696b-44ff-858d-a658dfd708cb/tewanusivo.pdf
    • https://uploads.strikinglycdn.com/files/ab038252-87df-44b1-9871-8a10c0ea7b50/gukawarifigiratax.pdf
    • https://uploads.strikinglycdn.com/files/f13691f9-6fd8-4e4f-93b2-5329d2bbfe34/kuwulavuximeb.pdf
    • https://uploads.strikinglycdn.com/files/57fc4a5f-424f-415e-ad32-e8b3604c0e86/directx_9_download_for_windows_xp.pdf
    • https://s3.amazonaws.com/felasorarabipis/niwomi.pdf
    • https://uploads.strikinglycdn.com/files/0630f162-dc7d-4e8c-bf5d-3aef2f938400/bozoboli.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ebe.bin
a5b4be7a427a82ef05827f60b049612b3adbcfed5aff2ab3606092f7d04905ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EBE 5628 bytes

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