Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfbe8553e71b38d0…

MALICIOUS

PDF

57.0 KB Created: 2020-08-04 08:04:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4a3f6b83499ca22ffc579c1545166c79 SHA-1: 05b9759d9e510535660169e5e2c392ebe53854d5 SHA-256: bfbe8553e71b38d05fd2b4ac4a713b3b486125944e46a63ce7b2538765c9eb0c
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=sda+zulu+hymnal+pdf+download'. Additionally, it features a PDF link farm heuristic, indicating a large number of embedded links, many of which point to Shopify domains. The document body contains text related to 'Sda zulu hymnal pdf download' and the malicious redirector URL, suggesting a lure to download content. No scripts were extracted from this sample.

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.com/pify?keyword=sda+zulu+hymnal+pdf+download In PDF document text
    • http://files.bsa-sccc-pack301.com/uploads/1/3/2/6/132681586/536fb038.pdfIn PDF document text
    • http://files.vinyldesignyl.com/uploads/1/3/1/4/131453109/xidaw.pdfIn PDF document text
    • http://files.dylanjmorgan.net/uploads/1/3/2/3/132302998/zalakozep_narabi_livavetupunid.pdfIn PDF document text
    • http://files.guettner.org/uploads/1/3/0/9/130970012/e808d.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/1/0436/0011/7928/files/48995100975.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9007/4005/files/chandelier_piano_chord.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2089/4886/files/labutijebijenabofabova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/75478456004.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7931/8166/files/personal_statement_for_university_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9904/6553/files/girokewirudi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9812/0094/files/dagobigevazagaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4539/5359/files/lowexawanefipolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9299/1399/files/94226729747.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5943/6951/files/bijudaxasuwegelusat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/4097/7574/files/sceptre_u505cv-_umc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0539/3570/files/6456897056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/75904593322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2969/2577/files/suwimufileviw.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000947a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x947A 5356 bytes
SHA-256: f7e486fde323a6ef950f8bbff1cd8788724bca5682ef457a6bc3ac793ab57262
font_01_sfnt_off0000a6a6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A6 4532 bytes
SHA-256: 8b1f233c6a7c4fd0d1569106921b58cd7bee76db873e76301dc43ffc09650955
font_02_sfnt_off0000b338.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB338 10232 bytes
SHA-256: bc4649e3240de977d393d092057a100be4b406ca528990155244cfa604f3e20a