Malicious PDF — malware analysis report

Static analysis result for SHA-256 88693cb00accc3ec…

MALICIOUS

PDF

35.1 KB Created: 2020-08-31 12:18:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f4cbfb3af0194dbe8e23eaa74ba58c3 SHA-1: 8494e75ff5e305a517895a1fd4671ff2d296b1a1 SHA-256: 88693cb00accc3eceae69f22fe30f4d179fda4650c66d3848b1b6793b515b41b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous links, with one identified as a malicious redirector. The document body, though heavily obfuscated, contains the URL that leads to this redirector. This suggests a phishing or scam attempt, likely aiming to lead the user to malicious content or further compromise. No scripts were extracted, limiting the analysis of specific execution behaviors.

Heuristics 3

  • 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.
  • 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=manual+dog+tag+embossing+machine+-+c
    • https://cdn.shopify.com/s/files/1/0441/2289/8584/files/4711613833.pdf
    • https://cdn.shopify.com/s/files/1/0438/1910/6466/files/12431794958.pdf
    • https://cdn.shopify.com/s/files/1/0433/9741/5077/files/gigomatuwu.pdf
    • https://cdn.shopify.com/s/files/1/0449/9944/2590/files/lateral_thinking_riddles.pdf
    • https://static.usrfiles.com/ugd/eb4c03_9751754933b1411eb7e6bea8de386da2.pdf
    • https://static.usrfiles.com/ugd/b8c837_e8f9b1f3727c49e0a214c508011206bd.pdf
    • https://static.usrfiles.com/ugd/b8c837_69ea20d14b0140ecba4d52c61cc1b7ac.pdf
    • https://static.usrfiles.com/ugd/b88e3d_2ce45eaeeeb4458db287c014706df8ac.pdf
    • https://static.usrfiles.com/ugd/23e9be_0f8c79e8cd5e4fd2be266439a378aeff.pdf
    • https://static.usrfiles.com/ugd/3649d2_b9757b2a0263409cad8a1c5cf9fc99d7.pdf
    • https://static.usrfiles.com/ugd/20d83a_39d367cd307d432e9137dbc004730fba.pdf
    • https://static.usrfiles.com/ugd/b8c837_7b1e7c6323bf4b9a92f753438ff76aec.pdf
    • https://static.usrfiles.com/ugd/b8c837_464caf8764254d4f9b7d54c1c6813de3.pdf
    • https://static.usrfiles.com/ugd/3f0e57_93a9b239e3e44d79a8db73e335d7407b.pdf
    • https://static.usrfiles.com/ugd/0d089b_03f49765525d4886bc9d53a90b621888.pdf
    • https://static.usrfiles.com/ugd/0df15e_c190f3fe796c4b5da9abde2c4fd9afaf.pdf
    • https://static.usrfiles.com/ugd/b8c837_9d67ec2f2de2477b96a9c3a4be8db334.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d07.bin
309a8834d12ec191c5c30563715a1056f9359c25ff4e8fb4ff67dc457fb4913c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4D07 5436 bytes
font_01_sfnt_off00005f5f.bin
602259dfcd426b2c383b1ec1228e9a8d9b63c3f12160237cca8cf13b6f9befc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F5F 9504 bytes

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