Malicious PDF — malware analysis report

Static analysis result for SHA-256 fed515010889c7bd…

MALICIOUS

PDF

39.3 KB Created: 2020-09-06 12:51:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 8936abb148ca388d1f96c1b2eaae56e6 SHA-1: 8ceee0d54b261938b9bc2b1fc55be8ace8256bc2 SHA-256: fed515010889c7bd6e57a99eaf5928d6c71bc229bc23ee61a3295e846d09f33f
154 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, indicating a phishing or scam attempt. The document body and embedded links suggest a lure related to 'Fb camera effects platform' which ultimately leads to the malicious redirector. The presence of numerous links to external PDFs, many hosted on Shopify, further supports the SEO link farm heuristic, likely used to obscure the malicious destination.

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.me/wix?keyword=fb+camera+effects+platform In 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/1/0431/0417/4233/files/california_dmv_handbook_2016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1508/6759/files/norevisurewajezumom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8520/9512/files/celestial_navigation_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2168/1315/files/81977942075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3519/6568/files/baofeng_uv-_5r_manual_espaol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7708/2019/files/timovoluvos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4079/8885/files/25931979266.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/xufegadofilofadipiloz.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/8d57bd_22237c9a6a6240f089e029b4f2fa1c2d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/43d598_2fa4bc5c08684224909c9cd30531f902.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0994f9_816a6a23db1d44bc84fab66288952461.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5a1791_90e4583b94154ecfb83f9d017dc3aa76.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ac0094_9653b19ab4584ac7b704241284181508.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_off00005ccc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CCC 5256 bytes
SHA-256: 19ea8255acf76f5783026b0b1849c694d306534c1637c39bab023cea8a4ce2c0
font_01_sfnt_off00006e99.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E99 10084 bytes
SHA-256: 054f71f64750b2ae60bc805d81b4692c3e733c6c7c6f78bbe8f47bfbb41570d3

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