Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f2f83ca8c552f21…

MALICIOUS

PDF

37.6 KB Created: 2020-08-28 14:12:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8721376b7134fbd1af5356053f7723a2 SHA-1: 650b078ec1fe38ee7c6a739bde0b615443956b76 SHA-256: 9f2f83ca8c552f21ebf2b3b05424c78bafb1e8a3463afa2f8de2a3b6caa772d6
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/pify?keyword=hope+to+die+free+download'. The document body also contains this URL and a large number of other PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. The primary malicious link is likely intended to redirect users to a harmful site, possibly for phishing or malware distribution.

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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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.me/pify?keyword=hope+to+die+free+download In PDF document text
    • http://files.rebeccalynnphotography.net/uploads/1/3/0/8/130874518/4840188.pdfIn PDF document text
    • http://loges.wifh.org/uploads/1/3/2/8/132815180/9149983.pdfIn PDF document text
    • http://files.hungryheartsfoundation.com/uploads/1/3/1/4/131438639/1696537.pdfIn PDF document text
    • http://parupov.brickstherapy.com/uploads/1/3/0/8/130874493/pelavalerabu.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/1/0429/8581/6218/files/stand_up_speak_out_talk_back.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1769/7437/files/97427420567.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0667/3574/files/upgrade_huawei_p8_lite_to_android_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1785/4373/files/linksys_wrt_160n_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/23567713846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4794/3330/files/antigona_cela_knjiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0440/3613/files/bisedopuriduwodubijixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1988/3928/files/testing_tool_selenium_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4293/8784/files/20315433714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8374/1849/files/uncc_sovi_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1175/1579/files/thrombectomy_for_stroke_guidelines.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_off000056a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56A3 4908 bytes
SHA-256: 2fa7d8c0729331b089eb10d1f39399caed7e98dc7bb1a73ff1cb9dfabfa42e2b
font_01_sfnt_off00006770.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6770 10136 bytes
SHA-256: 1c3a5c19d8d4ff1c56ddd37691432d84eebbb2f0867534c269bfb0a58bb44bfe

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