Malicious PDF — malware analysis report

Static analysis result for SHA-256 e739ab99abe354ca…

MALICIOUS

PDF

43.6 KB Created: 2020-08-22 18:51:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e80586ffb0f54c7d7641108aa1c787eb SHA-1: f2c7f2cde26f9350eda76669e62e064ea6e6398f SHA-256: e739ab99abe354caee98d3aa32f50336331a96771481c2b95147a8825103d861
202 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one identified as a malicious redirector. The document body text, though heavily obfuscated, contains the URL https://ttraff.cc/pify?keyword=bookmark+indesign+template, which is flagged as malicious. This suggests the document's primary purpose is to trick the user into clicking the link, likely leading to a further malicious download or exploit. The presence of a visual download button heuristic reinforces this social engineering tactic.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=bookmark+indesign+template In PDF document text
    • http://files.mounthelenacounseling.com/uploads/1/3/1/4/131483219/f3badb79261.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/1/0429/0206/1215/files/cursive_alphabet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/1878/0578/files/zetovibisar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4841/8973/files/varicocele_tratamiento_medico.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/durenixatox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7201/1941/files/cookiezi_new_skin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1055/5034/files/55265784510.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5529/2321/files/affective_domain_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1775/7095/files/coldplay_yellow_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/6219719719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/0130/8326/files/90317452656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5670/9288/files/34153045391.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1104/7575/files/pilate_power_gym_plus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/6219/9200/files/hd_images_for_pc.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 2

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_off00006ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA2 5392 bytes
SHA-256: 759e06a735842cf160e21f4b1b6988a48a11ca25fbcc6169a2e1e759d34005ea
font_01_sfnt_off00007edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EDD 10180 bytes
SHA-256: 21b743e82856d42a414d38536bbff5fed00f70e721c9014382659995293ab6c0

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