Malicious PDF — malware analysis report

Static analysis result for SHA-256 c080b5b7de18e7ea…

MALICIOUS

PDF

93.2 KB Created: 2020-08-26 10:33:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 86163063400d9c83c632eef22afbd327 SHA-1: 52e80cc609fecc292fd23555cb79e43f11686a21 SHA-256: c080b5b7de18e7eac5d37ed89df1f9a7384ac24e49bf407e2cfd6a9bb43cfc04
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Black clover episode 52 release date' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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=black+clover+episode+52+release+date In PDF document text
    • http://files.rochonlab.ca/uploads/1/3/2/6/132695932/gedifiwekizu.pdfIn PDF document text
    • http://files.njaje.org/uploads/1/3/2/8/132814272/1775429.pdfIn PDF document text
    • http://files.sounddesignstudio.net/uploads/1/3/0/7/130739631/larofuwatek_jagoxisizejaz.pdfIn PDF document text
    • http://viwasi.rebuildersspecialty.com/uploads/1/3/0/7/130775413/dovibokuzowe_xuxifan.pdfIn PDF document text
    • http://files.adorableponyparties.com/uploads/1/3/2/6/132681513/xaxugosiro-sizebifu-pipobotu-tosibuko.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/1/0438/0937/4365/files/55527578317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8678/2369/files/sufixajekemivisokenujuwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0840/1316/files/litcharts_huck_finn.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7821/9944/files/xijisanilu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1818/1016/files/macos_preview_reduce_size.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1957/files/alagappan_book_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6778/2821/files/68597919671.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32377204601.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/verbs_of_senses_exercises.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6822/files/94985774880.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4547/7800/files/60144486888.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 3

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
stream_004_off0000b0e5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xB0E5 36320 bytes
SHA-256: 05c4fefcb40c7364b9f49d231408da9512072c25f5c5e2a7cc79d63823ef5f48
font_01_sfnt_off00012264.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12264 5496 bytes
SHA-256: 8d87dd0ff589ce449d7b5b9d96b334ebd7f5c4ed18da919e7115234946d08caf
font_02_sfnt_off00013525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13525 16480 bytes
SHA-256: 607b7cc5f6512099655099095282e12a2976a992937ba4b78f92bf9a24625472

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