Malicious PDF — malware analysis report

Static analysis result for SHA-256 104c64226d150051…

MALICIOUS

PDF

74.2 KB Created: 2021-04-01 14:05:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47f4e5e0aad26d736d6caf76a0a37079 SHA-1: 9aeb1f787a0dbc5e1aa5bf865c9db3d4a46ab1fa SHA-256: 104c64226d1500519cb2b05d48828095548d7743167620f32c9a51a26b9f2c93
156 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a link farm and an embedded URL pointing to 'resalured.ru', which is flagged as malicious. The document body, though heavily obfuscated, contains text related to 'How to fake tinder location iphone', suggesting a lure for phishing or scamming. The presence of numerous external links and the malicious URL indicate an attempt to redirect users to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 5

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://resalured.ru/strik?utm_term=how+to+fake+tinder+location+iphone
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f6eb1390-3cf5-4f79-b3d2-b54f6e3c5ac1/44812774395.pdf
    • https://uploads.strikinglycdn.com/files/bab67b88-72a3-471c-80dc-633f90d0e1c9/harley_motorcycle_repair_shop_near_me.pdf
    • https://580b68e3-2104-4118-ae5b-4f285de1c062.filesusr.com/ugd/dad7b5_b17e60be1e5f463aa375c76f818ed7df.pdf?index=true
    • https://61249681-e2d1-4375-841a-b3723294d79c.filesusr.com/ugd/3d514e_f9de7ab3e3704843b91da52df7d7e10b.pdf?index=true
    • https://uploads.strikinglycdn.com/files/cdebd955-75b5-4861-b615-12644313411d/48020187680.pdf
    • https://uploads.strikinglycdn.com/files/887a39e2-8186-4559-8117-47f51ae3a076/81596249710.pdf
    • https://69df74eb-9f83-488d-97bb-abb55063df61.filesusr.com/ugd/f34323_911f778774864afdb132491df706db94.pdf?index=true
    • https://6196a4e6-b3b5-4a85-a139-4ec84e0a53d9.filesusr.com/ugd/d01287_93289995606341e6af90c3b2f44fe8d3.pdf?index=true
    • https://c6de0af5-2a4c-46da-924c-839bccb102c6.filesusr.com/ugd/5f1f0f_1cecdeca8c6d4dcea1212b3bb4893bf9.pdf?index=true
    • https://s3.amazonaws.com/wamatasamegu/famozeputin.pdf
    • https://s3.amazonaws.com/ganubifirigevi/dokigi.pdf
    • https://uploads.strikinglycdn.com/files/056463e2-0bae-4983-bd5b-665d7c59707c/sixatojowixalibu.pdf
    • https://s3.amazonaws.com/vatosolikijike/29188429146.pdf
    • https://d0fd53c2-66a5-49f7-a942-a4bfc50892a3.filesusr.com/ugd/11baf9_a04268fd8b5e4fce8bf497b4e9ced2d5.pdf?index=true
    • https://f1ddcea9-c323-452c-a4d3-aaefec61e50a.filesusr.com/ugd/defd8a_4e79d15bd40148ac833d111e73af91a4.pdf?index=true
    • https://77bc4ea4-de20-41c0-a463-a5315db628d9.filesusr.com/ugd/2c69e3_f28ff415a97245e189e1d18d85ced26a.pdf?index=true
    • https://1c684d3d-b1aa-4d58-8f8e-408f9cf37fac.filesusr.com/ugd/64d889_783e367bafe44583bcd1f22eb8be4919.pdf?index=true
    • https://d75bbb92-b0e4-4b50-83e6-2443e695523b.filesusr.com/ugd/bc73b9_83668b3c9dc645ddbedcc0f4575eb2ef.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e30e.bin
5b8a67ed2bea55fda146ed525012a1d53949edff4df76c315df4e4fa3a29f58c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE30E 5184 bytes
font_01_sfnt_off0000f4be.bin
d4f415108e2fffad4d20a3c1bca721ae64b3f660e6546e240ee0769670bbdab6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF4BE 10868 bytes

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