Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbcfc5bf05978c6a…

MALICIOUS

PDF

165.8 KB Created: 2020-08-17 05:29:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 66478b223fce18bb8b31c69a58b014fe SHA-1: 240d16f81de4e14ffaa2ebf80a77060d9fdc4a2f SHA-256: dbcfc5bf05978c6a1fd40f031973328f2f2dfa92d807ae5e22ed57f013a842a4
134 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, 'https://ttraff.cc/pify?keyword=the+asterisk+war+light+novel+pdf', is the primary indicator of malicious intent, likely serving as a lure for further malicious activity. No scripts were extracted, but the presence of the malicious URL strongly suggests a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • 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.
  • 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=the+asterisk+war+light+novel+pdf In PDF document text
    • http://ragev.thebracketpros.ca/uploads/1/3/0/7/130775734/3e71a9c8.pdfIn PDF document text
    • http://files.petphotobooth.org/uploads/1/3/0/7/130776682/kidikuropage.pdfIn PDF document text
    • http://zowidef.nybellhouse.com/uploads/1/3/0/7/130775455/a753eee657d3a.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/1/0437/4927/7845/files/11680221766.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6404/1373/files/15013131981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4469/9288/files/acne_vulgaris_aad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3633/4497/files/fokum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9848/1564/files/33554589752.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6673/7311/files/suwefalati.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6514/files/birmingham_cycle_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3336/files/fitonalunovatabujo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012a79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A79 90064 bytes
SHA-256: 52c8a4185b8a95bfbe4f97c8054f08728cb653391ad000ead51ec258cf06f7b3
font_01_sfnt_off000236e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x236E4 5468 bytes
SHA-256: c36b74e5db30aecadcb39263446d2b2d4a555509355e6b65cb4a7557628aed30
font_02_sfnt_off00024992.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x24992 13248 bytes
SHA-256: 762d5e45a822c2e5927c788a03349e66cf6ffde4e13a06263b95e2b69bad6772
font_03_sfnt_off0002743e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2743E 16144 bytes
SHA-256: e15a1281d5822949f1e77669e824eae5514ae62c72e5676204b82dc78d7785f6

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