Malicious PDF — malware analysis report

Static analysis result for SHA-256 04489f3483e1dd34…

MALICIOUS

PDF

39.2 KB Created: 2020-08-15 03:34:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5de0124360bd85983d2418eba1316a8b SHA-1: 62c753e6d246f9b2e8e37dde1bffc0088bae05ed SHA-256: 04489f3483e1dd348b8dcc03ef98450d99c61eca5107d83ed200149f88a00d8a
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though obfuscated, contains text related to 'forest animal worksheets' and a URL that aligns with the malicious redirector found in the heuristics. This suggests a phishing or scam attempt 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.
  • 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=forest+animal+worksheets+for+preschool In PDF document text
    • http://files.angryorange.org/uploads/1/3/0/7/130775677/vajidijutegeva.pdfIn PDF document text
    • http://mapitalen.philcuba.org/uploads/1/3/1/1/131163943/9aaa947fd.pdfIn PDF document text
    • http://files.heart2heartknittingfiberarts.com/uploads/1/3/2/8/132814611/susufiku_gofunolune_tasitabukulije.pdfIn PDF document text
    • http://files.isolationdrawing.com/uploads/1/3/2/7/132710569/xoriborovetir.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/1/0438/5187/4466/files/bookeye_4_kiosk_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7048/8730/files/tapatigoba.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3587/5749/files/absalom_and_achitophel_summary_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5475/9065/files/womens_comfy_platform_sandals_uk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/apprendre_le_suisse_allemand.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8488/0798/files/10463197660.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2021/2645/files/mastering_astral_projection_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2491/6388/files/kegujukuwewib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/the_ugly_duckling_story_for_kindergarten.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7699/3702/files/tit-_for-_tat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3618/0634/files/cell_parts_and_functions_matching_worksheet.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005af8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF8 5364 bytes
SHA-256: f483394f1dd2ff660c2eafdbf36e964ff19657a18296ef3e7a3aca5bb1c29c10
font_01_sfnt_off00006d23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D23 10164 bytes
SHA-256: 0da0f828dff16c146aa338f61a520fdda13b699887a2fdd483d648c0eb83fe3b

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