Malicious PDF — malware analysis report

Static analysis result for SHA-256 07814485b5ea861a…

MALICIOUS

PDF

63.3 KB Created: 2020-08-01 21:47:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 14fd52f4acd39e9b7c5a209560a91fea SHA-1: 3ffd070c36050818d0be1c607eb5e2d702cf46be SHA-256: 07814485b5ea861a9cc2ee0b8722285330fde60dafbc6a82e2611e032c30ad01
154 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed for malicious redirection.

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.ru/pify?keyword=clean+rap+songs+2016 In PDF document text
    • http://files.annieseatonartadvisor.com/uploads/1/3/1/4/131437924/beef5c.pdfIn PDF document text
    • http://files.murrayseniorcenter.org/uploads/1/3/0/7/130775342/fopawarinibebef.pdfIn PDF document text
    • http://files.kasara-resortcondo.com/uploads/1/3/1/4/131453985/6174076.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/1/0432/7673/0533/files/84000827375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9515/4070/files/xuvogaxudimip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9303/files/nasewataluwiran.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5229/2513/files/988127490.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70474217151.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4028/5607/files/siwufuzidamero.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/682885368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3573/7764/files/29319413247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2541/5843/files/elementary_differential_equations_10th_edition_boyce.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3635/9326/files/24758254112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/pokejerawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1290/5370/files/96617284314.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_off0000a8fb.bin
d0d0cba39d1e09a746555187358d0e53f3ecb1f34fd5139a82ddbaf4f71b86c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8FB 5372 bytes
font_01_sfnt_off0000bb4d.bin
23a67c64d9b5d3b87eb5e6530f3256ce2ee4b2aa04a6d56058422aafa8ed7909		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBB4D 17080 bytes

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