Malicious PDF — malware analysis report

Static analysis result for SHA-256 01b5be22f1795e93…

MALICIOUS

PDF

53.1 KB Created: 2020-08-21 22:56:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e97375988b54b9f0f93d6f1426e967f3 SHA-1: 7e7a5072581331ec1acd5b65c2ed3fca5aae8f02 SHA-256: 01b5be22f1795e935e130c4d9b32cb9b94a6fadcf362a7cc87faad485e905207
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file contains numerous links designed to appear as legitimate documents, such as 'attendance sheet sample for employee'. The primary malicious link, https://ttraff.cc/pify?keyword=attendance+sheet+sample+for+employee, redirects to known malicious infrastructure. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content broadly. No scripts were extracted, but the PDF structure itself facilitates the redirection.

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=attendance+sheet+sample+for+employee In PDF document text
    • http://gapoto.redwood4h.org/uploads/1/3/0/9/130969525/nanuva_xofol_zurobuxelupete_jodidabitito.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/1/0428/9085/4566/files/18436922937.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/14163877606.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/44887594264.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/3757/6603/files/business_essentials_10th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6734/9923/files/5_1_practice_classifying_triangles_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1705/1048/files/immigration_rules_appendix_fm_se.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5317/0334/files/64095907315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/92496834425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8871/5682/files/71432889632.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 8

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_off0000753b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x753B 5484 bytes
SHA-256: ee61cf8c9eacbe6e37e36a1c516818fd358240c842f887d2a86a48e6a3ca0939
font_01_sfnt_off000087b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87B5 1596 bytes
SHA-256: c198a591ae584e5ce0ba4e9356ad643509fbd09026bb86d1b1e1e191a79662f1
font_02_sfnt_off00008fd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FD6 9960 bytes
SHA-256: 30ae8d64d8a43e856b2621be0198c6d4d680dd6023a64b8b485c2124a1b48c46
font_03_sfnt_off0000b214.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB214 16144 bytes
SHA-256: 18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b

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