Malicious PDF — malware analysis report

Static analysis result for SHA-256 296ac6f8e60b9f9b…

MALICIOUS

PDF

41.5 KB Created: 2020-08-20 19:27:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 27a1784ea232d986b747f765f332030a SHA-1: 596a595e2b2bb828fc843f35e7e488734ee1c698 SHA-256: 296ac6f8e60b9f9bf14976a413df09d7cd07b2a21ef00a4e8f4cfa57dd57732a
162 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=tencent+emulator++filehippo', suggesting a lure related to software downloads. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to malicious content.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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/pify?keyword=tencent+emulator++filehippo In PDF document text
    • http://files.katedumbleton.com/uploads/1/3/2/6/132682878/2827996.pdfIn PDF document text
    • http://jiruk.thogersenfamilyfarm.com/uploads/1/3/0/8/130814328/seweduwunakibo.pdfIn PDF document text
    • http://gotave.altapg.com/uploads/1/3/1/3/131380181/4748216.pdfIn PDF document text
    • http://disumunim.unitedworkerscongress.org/uploads/1/3/1/4/131409090/ca4ac.pdfIn PDF document text
    • http://files.impunity.site/uploads/1/3/2/6/132681204/lefopogi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9635/7530/files/kivaxinidevujesobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7505/8329/files/10822728484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6124/7129/files/oxigen_micro_atm_commission_list.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5187/5494/files/16768376551.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3265/7568/files/music_video_sites_for_mobile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8583/1080/files/bounded_and_unbounded_sequence.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/najivasugegilalodaguniviv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tizerosotusalasebix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8978/8070/files/osrs_falador_elite_diary_guide.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65CA 5028 bytes
SHA-256: fba18db5640559d7dfde5ed0d26f833705bb08721ba865a37cf8fe4a6e630ea7
font_01_sfnt_off000076b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76B8 10192 bytes
SHA-256: 0a7c5a8e124bedebc6cc3f889e5fbff20ac8d74f5b67e3d0098afa3107519100

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