Malicious PDF — malware analysis report

Static analysis result for SHA-256 7734a8cc9250d4ea…

MALICIOUS

PDF

39.0 KB Created: 2020-08-20 07:48:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a54d5676ed652fb3fe8d8c90975aa387 SHA-1: 976111bc62a69e95e061da3a49efec94e86ca96a SHA-256: 7734a8cc9250d4ea86754e3cc91c25768d37b68e81375ac77a1a8a1cbc69a0e7
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains multiple heuristics indicating malicious redirection and a link farm, specifically pointing to a redirector URL that masquerades as a free download for Adobe Illustrator CS6. The embedded document body, though heavily obfuscated, contains the same redirector URL. The presence of a security bypass instruction further elevates the risk, suggesting an attempt to disable defenses before payload delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Security software disable instruction high SE_SECURITY_BYPASS
    Document instructs the user to disable antivirus or security software — unusual for ordinary documents and high-risk in an unsolicited file
  • 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.ru/pify?keyword=adobe+illustrator+cs6+free++google+drive In PDF document text
    • http://files.fixfaithsfemur.com/uploads/1/3/0/7/130739746/1847196.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/1/0434/2556/2785/files/chaka_dolla_ghetto_boy_song.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8180/8549/files/positive_and_negative_feedback_amplifier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/jeseruto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3400/8987/files/20772207340.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/9701/7768/files/alfresco_document_management.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7330/5762/files/bulev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5759/4016/files/batman_arkham_knight_save_game_ps4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/26904965129.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9341/7366/files/94551300956.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4990/9415/files/tuwujada.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7929/5383/files/fujituvuwi.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005791.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5791 5532 bytes
SHA-256: 72c489e71f51768a18ffa0b2cd6075617a7acd56c6dd85b04fec95d1711e75e0
font_01_sfnt_off00006a74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A74 10888 bytes
SHA-256: 34a9db73cfe8d994cdf4730fdd1510dfb18c6412acc934586dff34927db51d0b

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