Malicious PDF — malware analysis report

Static analysis result for SHA-256 7afd4d8565d8c1f5…

MALICIOUS

PDF

53.3 KB Created: 2020-11-04 14:38:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 13768bddc3b6c1b7cdc6f83fe1bbfcb5 SHA-1: 3e435d3b1ee61372cf6c8ed2e73146ba31ec7f6c SHA-256: 7afd4d8565d8c1f567ade31aec831fbb289c137400844ff4e26033f17bd1deef
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a deceptive title and a link that redirects to known malicious infrastructure, indicating a phishing or scam attempt. The ML classifier strongly supports maliciousness. The presence of a link farm suggests an attempt to manipulate search engine results or distribute malicious content broadly.

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://ggtraff.ru/aws?keyword=zillow+real+estate+prices In PDF document text
    • https://cdn-cms.f-static.net/uploads/4371806/normal_5f9dcf9ccb82b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369153/normal_5f8eac41870e2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383452/normal_5fa065c7ed705.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409614/normal_5fa2719b8958c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369651/normal_5f91bd464fd71.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/d89fb908-d940-4914-b361-a87628f39ba6/prince_of_wolves_pathfinder.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a31f7b62-f5f0-4a77-b675-8cedbac40eff/beginners_python_tutorial.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f9450a98-e810-4f49-aa61-58cf37ae524b/si_beag_si_mor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0501/2645/4977/files/49843472006.pdfIn PDF document text
    • https://s3.amazonaws.com/felijaziremole/texas_drivers_license_restriction_ag.pdfIn PDF document text
    • https://s3.amazonaws.com/bevekizadoxuj/tagutatitibifoj.pdfIn PDF document text
    • https://s3.amazonaws.com/fasanag/human_anatomy_mckinley_free.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.

FilenameKindSourceSize
font_00_sfnt_off000093b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x93B9 4976 bytes
SHA-256: 37e6e5e137fbcd9b3aadfabc01a11a5c5a715b11566e33e071e4a172bd34a8ea
font_01_sfnt_off0000a4c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA4C6 10500 bytes
SHA-256: 3a875928db934119a83ff0aabce99af0363a8c0c89a86628a2ce87447a113e94

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