Malicious PDF — malware analysis report

Static analysis result for SHA-256 224dab6e85cb825b…

MALICIOUS

PDF

45.0 KB Created: 2020-11-01 06:52:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 19680c9195160c37f18688bced73e839 SHA-1: 49a6ce799a8d82d7af8c8c5eef35a65b7b432dfc SHA-256: 224dab6e85cb825b41f3d603f740ec4d9b6e36cbcd46d86d10b44b14e4cf7315
194 Risk Score

Malware Insights

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

The PDF contains a lure related to 'Time Warner boxless channel guide' and embeds multiple links, including one pointing to a known malicious redirector. The heuristic 'SE_BROWSER_INSTALL_LURE' indicates the document attempts social engineering to trick the user into installing something, likely to facilitate further compromise. The presence of numerous links, including a link farm, suggests an attempt to distribute malicious content or phish for credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.link/123?keyword=time+warner+boxless+channel+guide In PDF document text
    • https://tejigenunonim.weebly.com/uploads/1/3/0/8/130813632/dibividulozi-beroxavexowale.pdfIn PDF document text
    • https://nazuvunu.weebly.com/uploads/1/3/4/4/134438845/gaxiwomevat.pdfIn PDF document text
    • https://difiraboveju.weebly.com/uploads/1/3/4/5/134508976/7c9caf49aad.pdfIn PDF document text
    • https://sifumoxijobobo.weebly.com/uploads/1/3/4/4/134493963/sesetekamo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379220/normal_5f92451abfa85.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/1/0503/0736/7108/files/44487394157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5107/4204/files/12908973681.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4446/0951/files/tennessee_williams_quotes_new_orleans.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/7415/1084/files/word_docx_to_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0675/3948/files/jvc_kdr660_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/8781/3539/files/dibajasijepepeku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0506/8662/3924/files/36910533483.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0504/3368/7750/files/24046607173.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0467/5695/4275/files/friday_the_13_killer_puzzle_mod_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0505/5063/6741/files/fogagosipu.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_off00006d56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D56 5604 bytes
SHA-256: 742dccc0a067a8f0523a381e031298c117cb74d51428b3d01eaca98d2c7dba7a
font_01_sfnt_off00008040.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8040 12036 bytes
SHA-256: b6b868893d5387dc92fd87cfa45d9ab052aa3680add7b53193b0cd18616508fc

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