Malicious PDF — malware analysis report

Static analysis result for SHA-256 5169fa9a68aeb184…

MALICIOUS

PDF

42.7 KB Created: 2020-08-16 18:08:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c17701d859867f5feac63ef58933487b SHA-1: 883f4438bac3fb40b848342b75932252a101b012 SHA-256: 5169fa9a68aeb184b44e2b1f9c786392b57fb2bb56a18e0b911f0fccbdb1c0db
202 Risk Score

Malware Insights

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

The PDF file contains a link disguised as calibration software, which redirects to a known malicious domain. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources. The presence of a malicious redirector link is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • 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.com/pify?keyword=laptop+battery+calibration+software In PDF document text
    • http://files.retailresumes.ca/uploads/1/3/0/7/130739385/2c4348c74.pdfIn PDF document text
    • http://files.joyandjoebaby.com/uploads/1/3/2/7/132740293/zogaribibo.pdfIn PDF document text
    • http://files.upbaseballsoftball.org/uploads/1/3/0/8/130814229/80009.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/1/0431/2272/0922/files/africa_twin_accessories.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/standard_catalog_of_smith_wesson_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7878/5951/files/english_conversation_lessons_for_beginners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7379/8306/files/zavalevofevalopekuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/safuvafofejanid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7509/3159/files/13995666430.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2160/6817/files/gufepin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8056/2326/files/bachna_ae_hasseeno_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0173/2520/files/anteaters_guide_to_writing_and_rhetoric_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0976/7584/files/anemia_por_deficiencia_de_vitamina_b12_pediatria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6749/8911/files/jafep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4539/6386/files/92514720914.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 1

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_off000068a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x68A1 5284 bytes
SHA-256: d371fe65c092805f5cf99484c58acb6a40a80b70618336f654bd91df23517d2b
font_01_sfnt_off00007abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABD 10164 bytes
SHA-256: b88307164f9ddb19bbdf2d84308eb2b76dfda2925bb25419d28873446c079e33

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