Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db49e33b2d15f7c…

MALICIOUS

PDF

38.0 KB Created: 2020-08-09 22:36:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c558c099d0bc39fabc6d7e978e624ed7 SHA-1: 7e2128f9eecaff660f9e8df1d664c267f89a5e0b SHA-256: 1db49e33b2d15f7c354ee6c18d2f9d5f31df21e85eef51305f8190b038cf8426
194 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with the primary link directing to a known malicious redirector at 'https://ttraff.cc/pify?keyword=hematochezia+pada+anak+pdf'. This suggests the document is designed to lure users to malicious infrastructure. The ML classifier also strongly indicated maliciousness.

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=hematochezia+pada+anak+pdf In PDF document text
    • http://files.lubricantdistribution.com/uploads/1/3/2/7/132712147/gelanutanib.pdfIn PDF document text
    • http://xatukij.whisperingdoveranch.com/uploads/1/3/2/8/132814930/zujemilaminop-sajotu.pdfIn PDF document text
    • http://files.currockpress.com/uploads/1/3/1/0/131070866/9905075.pdfIn PDF document text
    • http://files.kunape.org/uploads/1/3/1/3/131380341/c6cd8a483a.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/1/0435/4670/6088/files/rupawuroluxeriwulotir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0384/4520/files/55772110529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6661/3141/files/bukhari_shareef_arabic.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7624/7967/files/levipebexolugusivobem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8545/3728/files/60378082921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4038/8758/files/mugakewin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5459/5224/files/simple_english_sentences_for_daily_use_with_tamil_meaning.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2623/6063/files/54112744565.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2192/4514/files/small_business_plan_example.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2394/files/18537986460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2862/8135/files/filter_array_javascript.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2644/0607/files/38344890982.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4204/4066/files/47618787115.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/47497449714.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_off000058dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DD 5164 bytes
SHA-256: fcc68c6be6e1c27c52ee7c951962c8096137d9d3684037d9c5b1e7693a9a93a6
font_01_sfnt_off00006a53.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A53 9644 bytes
SHA-256: c403166c994fb09e3cb6c3e53e04843e45923d7c44c871c98d7eb654f71dc1fc

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