Malicious PDF — malware analysis report

Static analysis result for SHA-256 049afffa04986224…

MALICIOUS

PDF

64.8 KB Created: 2020-08-10 19:49:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fb1b41b8ee74cd0e959b32a0fbd0f1e4 SHA-1: 6ca42eb7d706f2cde10a5b93cf5fccf24a0ca2b2 SHA-256: 049afffa04986224353735c855efad93b5c64127a639705e6978d61ae53f1c17
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector service (ttraff.com). This suggests the document is designed to lead users to malicious websites, likely for phishing or to download further malware. The ML classifier also strongly indicated maliciousness.

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=silent+words+in+english+a+to+z+pdf In PDF document text
    • http://files.furrypeoplepetsitting.com/uploads/1/3/1/0/131069763/9274357.pdfIn PDF document text
    • http://lemasekej.foxedenterprises.com/uploads/1/3/0/8/130874493/folokogasuzeruf.pdfIn PDF document text
    • http://files.oaxacamezcaltours.com/uploads/1/3/1/3/131398145/da881e7f6.pdfIn PDF document text
    • http://files.bearvalleyanimalhospital.com/uploads/1/3/2/6/132682731/nudoti-lafej-jazijupumupusew-pabakidekutul.pdfIn PDF document text
    • http://files.nnhst2.org/uploads/1/3/1/3/131379612/lufuxofuwusuwufaposi.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/1/0432/0237/9939/files/84369368339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9721/1558/files/al_ittihad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5420/2013/files/kptcl_syllabus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8894/5064/files/anabolismo_de_las_proteinas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/nomulavabepurupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0328/1571/files/copy_banner_minecraft.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4877/2519/files/75493587892.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/19311708695.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0485/4426/files/tugaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8722/4214/files/rodijel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7495/3124/files/calculus_10th_edition_larson_and_edwards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7053/5318/files/17760870127.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2485/0842/files/37862567628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0790/9794/files/buride.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_off0000b3a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB3A8 5548 bytes
SHA-256: db5e2751aabdcaafd0e89dff4adf505d0af820e387fd6e377c073eb723e288e9
font_01_sfnt_off0000c68a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC68A 2484 bytes
SHA-256: 26b7434360fe900c4a7e4f23a1fb9bf9b6552aebc56395160256ee6b90e0f5ea
font_02_sfnt_off0000d18a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18A 10420 bytes
SHA-256: e05380ae05aa45e7dba34aa961ea3411907cac3682db730b14dd936fe3410af7