Malicious PDF — malware analysis report

Static analysis result for SHA-256 06be55d7957ffa18…

MALICIOUS

PDF

40.6 KB Created: 2020-08-31 06:28:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fceb8d5262d23c25a3acba7d7e19aa69 SHA-1: 54af4f95fd8e195a37c4dc25af5d8b3c665ee386 SHA-256: 06be55d7957ffa1829742447daed206b8ee2b563a0437808807e8d50121c006a
154 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is likely used to host further malicious content or phishing pages. The document body, though heavily obfuscated, contains text related to torrents and the malicious URL, suggesting a lure for users seeking pirated content. The presence of numerous external PDF links, many pointing to Shopify, indicates a link farm strategy, potentially for SEO poisoning or to host benign-looking files that mask the malicious redirector.

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.cc/wix?keyword=moneybagg+yo+reset+torrent
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/prioritization_delegation_and_assignment_3rd_edition_free.pdf
    • https://cdn.shopify.com/s/files/1/0430/1409/5001/files/java_8_features_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34530012154.pdf
    • https://static.usrfiles.com/ugd/b8c837_3631edaa9a6d474ca5ad62975c84114c.pdf
    • https://static.usrfiles.com/ugd/4e6dd5_46f5ef0254a6436ab4026df4f9c6b269.pdf
    • https://static.usrfiles.com/ugd/b8c837_7859c7c65faa4e118d26c53da8b0fea7.pdf
    • https://static.usrfiles.com/ugd/b8c837_1b71d75ab8ef4596b2a344b295b1484e.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_cc100e53ffd54cb18a0a0b7294cfd3d6.pdf
    • https://static.usrfiles.com/ugd/238140_419a6f6849234e499dc8b80bddeca468.pdf
    • https://static.usrfiles.com/ugd/b8c837_5c6cbe1d631246d2b27c5c00f0925dff.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5674/files/ranire.pdf
    • https://cdn.shopify.com/s/files/1/0433/0700/8168/files/86252664501.pdf
    • https://cdn.shopify.com/s/files/1/0428/2915/2423/files/vezopojaregusarotiwa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6576/1176/files/57369644356.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054df.bin
c3572e8aa42c2fe0184ef0d9c38df2e93ba0b0705394256458161481b43ea27b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54DF 4808 bytes
font_01_sfnt_off00006543.bin
9de7272cb677c5bc0060fa279ba44b045b602e4c9d059bb633c3e16111e9fe53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6543 10084 bytes
font_02_sfnt_off000087d1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87D1 4324 bytes

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