Malicious PDF — malware analysis report

Static analysis result for SHA-256 5578db8e72a6ff4e…

MALICIOUS

PDF

43.4 KB Created: 2020-08-20 04:32:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 65a4dbcc19761704a23a2be5099b8832 SHA-1: 3be0b4d027acd5de2a06d0631e1c352b0c42bba5 SHA-256: 5578db8e72a6ff4ebb1a84260df6eab3f21195dbb85c0f28d6c3b9ae814f4424
194 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which point to a redirector service. The document body text, though garbled, includes the phrase "home inspection reports online" and a URL that aligns with the malicious redirector. This suggests a social engineering lure to drive traffic to malicious infrastructure.

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.com/pify?keyword=home+inspection+reports+online In PDF document text
    • http://valuvelu.kangaroohavenwildliferescue.com.au/uploads/1/3/1/4/131407668/a06b975594.pdfIn PDF document text
    • http://files.stgeorgeappliancerepair.com/uploads/1/3/0/7/130740118/132938.pdfIn PDF document text
    • http://lorulufa.southernbritishcarclub.net/uploads/1/3/1/4/131483281/84f6a98152.pdfIn PDF document text
    • http://nijik.mapeasymposium.org/uploads/1/3/0/9/130969173/fesudixobexaxe.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/1/0457/7689/6156/files/video_birthday_invitation_maker_app_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7070/8125/files/john_butler_primary_college_uniform.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4044/8407/files/upsc_sample_answer_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8857/4632/files/cardboard_robotic_hydraulic_arm.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2607/8106/files/p90x_diet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9405/5843/files/akhiyan_da_surma_chan_ve_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2899/6247/files/pebepukaxovipefuzoberar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/acca_f6_pocket_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/9121/3733/files/beruntungnya_aku_sheila_on_7.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8855/7718/files/clinical_exercise_physiology_book.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_off00006cbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CBB 4832 bytes
SHA-256: b531c1ab7de3bd680959affb33a5c2977f2312855a18b133a4e65d783544b510
font_01_sfnt_off00007d0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D0E 10524 bytes
SHA-256: 209691b93e59df7796d25f1834810357aeefb7f191bd49b638b3cd7776c2a175

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