Malicious PDF — malware analysis report

Static analysis result for SHA-256 e6e67b6c79c0f640…

MALICIOUS

PDF

43.3 KB Created: 2020-08-24 05:57:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42ca63163720fc6deacafe81308b1f85 SHA-1: 7b0cb89346aad0215669a6e0ea64ee90d4a94a8d SHA-256: e6e67b6c79c0f64052af9627b8676125f1816aa31d120de8f7f7cd6ec4eb0455
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=baidu+browser+free++pc'. This URL is likely intended to lead the user to a malicious site. The document also contains a large number of embedded links, many hosted on Shopify, which is flagged as a PDF link farm. The document body text, though partially corrupted, contains the string 'Baidu browser free pc', reinforcing the lure. No scripts were extracted from this sample.

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.cc/pify?keyword=baidu+browser+free++pc In PDF document text
    • http://files.jkxtremehardscaping.com/uploads/1/3/1/6/131637357/xijuwebatazopep.pdfIn PDF document text
    • http://fapefe.warmanddryuk.com/uploads/1/3/1/4/131453358/3598969.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3669/6999/files/30809469934.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2960/1175/files/botojeme.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/past_modal_verbs_exercises_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2107/2546/files/vofobomakabelewikupef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/22931218631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/supamo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4215/8245/files/duxijojitirurokujiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6845/files/48921887963.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/politik_pluralisme_indonesia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/2794/6661/files/93464661846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6727/7469/files/merepiteba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6889/8966/files/house_rent_agreement_form.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 6

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fb6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FB6 5096 bytes
SHA-256: 64d725fa30bda1ef792f6c4d64c384b1f3778b7fbe5cded520f12fb5be26fc30
font_01_sfnt_off00007122.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7122 9676 bytes
SHA-256: 1a4b5f8229990c04e1cd9f4130728d74ad4e529664c024468c334d0af05c6b13
font_02_sfnt_off00009238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9238 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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