Malicious PDF — malware analysis report

Static analysis result for SHA-256 34428db990976769…

MALICIOUS

PDF

75.9 KB Created: 2020-08-14 22:02:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 22dcfcfeb7567f1af24f2a83b493de27 SHA-1: 2d2dd51c1e33d91d9a678af8fb2a7288a3825f3a SHA-256: 34428db990976769efd8324a8685d4601adb10f5f1606657f1576de739e456c4
162 Risk Score

Malware Insights

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

The PDF contains a lure related to a 'parking ticket dispute template' and includes a critical heuristic firing for a malicious redirector link. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=parking+ticket+dispute+template', which is flagged as a malicious redirector. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded links, some pointing to benign Shopify URLs and others to unknown or potentially malicious domains.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/pify?keyword=parking+ticket+dispute+template
    • http://files.elslandscapeinc.com/uploads/1/3/1/4/131437649/bevogegolozu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/3504/9640/files/reweg.pdf
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/zepajiremu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4882/8065/files/vepozadu.pdf
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/oxygen_not_included_guide.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dadimutixiwukigojubiw.pdf
    • https://cdn.shopify.com/s/files/1/0436/3422/9401/files/fadux.pdf
    • https://cdn.shopify.com/s/files/1/0434/2664/4125/files/2340712273.pdf
    • https://cdn.shopify.com/s/files/1/0432/0329/7438/files/5304397897.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/chinese_kenpo_techniques.pdf
    • https://cdn.shopify.com/s/files/1/0431/0027/4845/files/99143157795.pdf
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/xibokexojuwabuperewirogog.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_off0000dc97.bin
a17885b4fd577e0298a64705d5055d2ac7c2363fd7008e9cf236b3df412a17d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDC97 2828 bytes
font_01_sfnt_off0000e691.bin
2f4a018189bec866d0054a2e01b6c299116a87ae5247fd67c6066515cc074736		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE691 5460 bytes
font_02_sfnt_off0000f905.bin
d49f21d283093f3019904e032d41e3581bca111e5441f2cfada57862dfe0a2e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF905 12996 bytes

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