Malicious PDF — malware analysis report

Static analysis result for SHA-256 62206fe6c27003ac…

MALICIOUS

PDF

41.2 KB Created: 2020-08-13 00:13:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 954d6b0cf68990aa26699ed7bb700fac SHA-1: 08b4ad05b02b722cf07df30e3d9dc3ba1fa3abcd SHA-256: 62206fe6c27003ac9d62af77915b9ad3a241e6b82b94ac19ddba898b1ad43bef
154 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to ttraff.com. This link is presented as a Honeywell thermostat manual, likely a lure to trick users into clicking. The document also contains a large number of embedded links to PDF files hosted on various domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of embedded URLs and the redirector heuristic 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/wb?keyword=honeywell%20thermostat%20rth2310b%20manual
    • http://files.mzocoill.com/uploads/1/3/0/8/130813413/novirorilu.pdf
    • http://tedida.billiepagephotography.com/uploads/1/3/1/4/131453850/7437946.pdf
    • http://files.starboycreations.com/uploads/1/3/0/7/130739945/eb8d51.pdf
    • http://files.paduastore.com/uploads/1/3/0/7/130775013/7282363.pdf
    • http://zepawoze.mystayathomejourney.com/uploads/1/3/0/7/130776486/wiluborariv.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/.pdf
    • https://cdn.shopify.com/s/files/1/0441/4157/6344/files/automatic_door_opening_system_project.pdf
    • https://cdn.shopify.com/s/files/1/0432/0516/5216/files/13089649213.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/fundamentals_of_statistics_5th_edition_sullivan.pdf
    • https://cdn.shopify.com/s/files/1/0437/7359/1703/files/difference_between_reliability_and_validity.pdf
    • https://cdn.shopify.com/s/files/1/0429/7257/7946/files/act_now_domains.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/84140266845.pdf
    • https://cdn.shopify.com/s/files/1/0435/7334/6472/files/8410475052.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/96328102714.pdf
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/povesuronafelokip.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000614e.bin
5643e29193640c17d0965ed1df2e283d6bad6edabf91e61c36f7c82d91060f96		 pdf-font-stream PDF embedded font (sfnt) at offset 0x614E 5708 bytes
font_01_sfnt_off0000749c.bin
ff391b25853a7212620be90ffe14036bd158d795d82ae387fe62762ef03c1511		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749C 10376 bytes

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