Malicious PDF — malware analysis report

Static analysis result for SHA-256 198fc109e6343e02…

MALICIOUS

PDF

48.1 KB Created: 2020-09-02 06:23:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7c5a1d06ef08862edc36f3a6ce61b56 SHA-1: b65e6762c3e8f9746a819071983990a0dde69094 SHA-256: 198fc109e6343e02600c186237296e0a0728d552fd0c49b801b257e0e74d396d
154 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary link, 'https://ttraff.com/wix?keyword=benelli+600i+exhaust+sound', is flagged as a malicious redirector. This suggests the document is part of a link farm or SEO manipulation scheme, potentially leading to phishing or malware distribution. No scripts were extracted, but the structure and embedded links strongly indicate malicious intent.

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.com/wix?keyword=benelli+600i+exhaust+sound
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://static.usrfiles.com/ugd/15d534_262401d73ce04baebfd7304fb3c80456.pdf
    • https://static.usrfiles.com/ugd/b8c837_60e62bf252c24cecafbde5a58f6b1dff.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb6fca7f18444a6a859001c0166b6698.pdf
    • https://cdn.shopify.com/s/files/1/0438/8998/3640/files/41370802878.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30812088679.pdf
    • https://cdn.shopify.com/s/files/1/0429/5180/3039/files/ergonomic_mechanical_keyboard.pdf
    • https://cdn.shopify.com/s/files/1/0451/5568/0410/files/rate_analysis_for_brick_masonry.pdf
    • https://cdn.shopify.com/s/files/1/0427/5693/1751/files/pufabaroperag.pdf
    • https://static.usrfiles.com/ugd/b8c837_378f41b42f414a37bd4cc1379b8527a7.pdf
    • https://static.usrfiles.com/ugd/de65f7_67c99ea8d736473b9e440b0d14e591a1.pdf
    • https://static.usrfiles.com/ugd/fac845_1b6b498ab9a5498ca87b2fe9a240890d.pdf
    • https://static.usrfiles.com/ugd/ba3095_603fd13ebe314107bbbaae7428a3753a.pdf
    • https://cdn.shopify.com/s/files/1/0433/2886/4409/files/78862208231.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41841620016.pdf
    • 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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000506c.bin
bb18a74fb5ee8e04310c2f06ff7d95ec9d842d990876e04a821d5f38ae17c06e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x506C 5112 bytes
font_01_sfnt_off000061c5.bin
8a5001745c64fc8f9eecc9f92a395f210ed80d967d8035aaa3d9c0bcf034b22e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61C5 14984 bytes
font_02_sfnt_off00009039.bin
ebd2804bff382343e08f6a42dc45f69f4e794c08b23908ae60ba78ededae74b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9039 16164 bytes
font_03_sfnt_off0000a551.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA551 4324 bytes

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