Malicious PDF — malware analysis report

Static analysis result for SHA-256 5834f3c06431c12c…

MALICIOUS

PDF

56.6 KB Created: 2020-10-16 14:25:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4b16bc55d26084d3d3460128349fede7 SHA-1: 7f72543f93fc6ace82f23509901718b0ba3c9cbc SHA-256: 5834f3c06431c12c301e3c88f98e9b6ca877ed8ed039890bc66d617ab1f577de
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains numerous embedded links, many of which point to known malicious redirector infrastructure or are part of a link farm designed to manipulate search engine results. The document body, though heavily obfuscated, contains a URL that is also flagged as a malicious redirector. This suggests the primary purpose of the PDF is to act as a lure, directing users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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://gettraff.ru/wb?keyword=fuzion%20mini%20digital%20pocket%20scale%20manual
    • https://cdn-cms.f-static.net/uploads/4369646/normal_5f881484d8517.pdf
    • https://cdn-cms.f-static.net/uploads/4367627/normal_5f876631cc3d9.pdf
    • https://cdn-cms.f-static.net/uploads/4366365/normal_5f87de902770a.pdf
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/9423201.pdf
    • https://cdn-cms.f-static.net/uploads/4365646/normal_5f8804e9ed753.pdf
    • https://cdn-cms.f-static.net/uploads/4370087/normal_5f87fd50c0eda.pdf
    • https://cdn-cms.f-static.net/uploads/4369494/normal_5f88957e607d7.pdf
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f8801e9b9b68.pdf
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f878b29570d2.pdf
    • https://wefolukozik.weebly.com/uploads/1/3/1/4/131406413/3157789a1072e5e.pdf
    • https://xojerajap.weebly.com/uploads/1/3/1/3/131384359/zebapesuluboxaj.pdf
    • https://rimesozarabef.weebly.com/uploads/1/3/1/6/131607712/9a5526b.pdf
    • https://vezorobabuwej.weebly.com/uploads/1/3/0/9/130969079/616f196.pdf
    • https://cdn.shopify.com/s/files/1/0433/0638/5558/files/42169168654.pdf
    • https://cdn.shopify.com/s/files/1/0478/9400/3878/files/weririgamenifuwanu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7115/2023/files/64955669171.pdf
    • https://cdn.shopify.com/s/files/1/0484/4909/3797/files/kwame_nkrumah_i_speak_of_freedom.pdf
    • https://uploads.strikinglycdn.com/files/72c53269-1366-4e8d-a726-8858ece0dce0/20052513762.pdf
    • https://uploads.strikinglycdn.com/files/cb1f9d25-3713-42dd-ba2a-a4f8b7f35014/96780315433.pdf
    • https://uploads.strikinglycdn.com/files/2ab6952d-d92f-4d45-9ed6-3167f1f5dde3/lajasudetixikuje.pdf
    • https://uploads.strikinglycdn.com/files/39ca2cf9-c255-4317-8fca-5594a03bdcbc/totewetalavabediwe.pdf

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