Malicious PDF — malware analysis report

Static analysis result for SHA-256 8cdd97c515ea8c70…

MALICIOUS

PDF

708.8 KB Created: 2020-08-15 01:54:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c0f84ab7f24411a78cd75d5d934f3e69 SHA-1: e712f8d4e5782482f5eae04f951362cff1c6839b SHA-256: 8cdd97c515ea8c703d99f6effda1ef70d01f3d5fe901bc8223277e60b275acc0
142 Risk Score

Malware Insights

MITRE ATT&CK
T1204.002 Malicious Link

The PDF file contains a critical heuristic firing indicating it is a malicious redirector link. The document body, though heavily obfuscated, contains text that suggests a lure, and the embedded URL points to a known malicious redirector. The heuristic 'SE_URGENCY_LURE' further supports the social engineering aspect of this attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9369

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.
  • 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.cc/pify?keyword=starter+cross+reference+guide In PDF document text
    • http://files.itechtutoring.com/uploads/1/3/1/4/131453543/f364f0ca.pdfIn PDF document text
    • http://fakukudek.rhinedesign.org/uploads/1/3/0/8/130873851/befepu-fenev.pdfIn PDF document text
    • http://lixin.bfvh.com/uploads/1/3/0/8/130813528/mipikudaka.pdfIn PDF document text
    • http://files.evincarter.org/uploads/1/3/1/4/131437477/wanasiritizedel.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/1/0427/5296/6812/files/vidiponifunugataxop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5331/8306/files/popaledegele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2960/8101/files/jipexusaxeremolenugo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9550/7622/files/kusadabaxe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1961/5901/files/fulton_county_mugshots.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7920/5013/files/25560922939.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7304/4647/files/abcdee_calibri-_normal_font_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9864/5404/files/pazurumojuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/capitalismo_monopolista_e_servio_social_jose_paulo_netto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3170/7294/files/jepowabojeg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2749/6087/files/downtown_baltimore_map.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 7

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_off000aa238.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA238 6832 bytes
SHA-256: 9ed12c2b80b46348fc55f9712912c50b2061a1ead96c5873f11ec77c632493cc
font_01_sfnt_off000ab969.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB969 5260 bytes
SHA-256: e5c6fc585f0fc084f16b4843cd30f4e38b4775bd86d2e35793f4c109c367104a
font_02_sfnt_off000acb52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xACB52 16660 bytes
SHA-256: 34f08a247352724c8058e0c77567ba7292ac34a459262c968b8cefd282afc008

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