Malicious PDF — malware analysis report

Static analysis result for SHA-256 64438f55230994ea…

MALICIOUS

PDF

49.6 KB Created: 2020-08-24 20:41:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de337f5ec4488ebcbaa7bb15b4591028 SHA-1: d8302bb990be1e1f02ea90ac50c15813c349e484 SHA-256: 64438f55230994ea11c1f81e4008fa9a3097dfb7398ea13dbc97dbd8a888567e
202 Risk Score

Malware Insights

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

The PDF file contains numerous external links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. This indicates an attempt to lure users to potentially harmful content, likely as part of an SEO spam or phishing campaign. The presence of urgency language further supports this, although no specific script was extracted to detail further actions.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=birthday+banner+background+images+hd+marathi In PDF document text
    • http://files.autopanelsworthing.co.uk/uploads/1/3/1/6/131607163/82b2c6cbd8f37d7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2825/0781/files/21359180368.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5959/9777/files/aaa_drivers_ed_test_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4642/8059/files/91297142094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8029/4298/files/muwamulijewisekex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8382/4294/files/ielts_general_training_writing_practice_test_with_answers_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6593/3985/files/human_biology_mader.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/8919421158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0224/6814/files/op_amp_circuits_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2938/8699/files/life_expectancy_of_building_components.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8209/5517/files/nitro_keygen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5112/1820/files/english_lessons_for_spanish_speakers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9588/3925/files/76405009036.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ba3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA3 5560 bytes
SHA-256: 15d8a7f4d1921a04ba948d07093892101526973f4e4f76ea7da34f43d579ab84
font_01_sfnt_off00006e5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E5D 9780 bytes
SHA-256: e439a53c3defaeb62fd75d0039942cd04814b4fcf88b6e9880e62a60c3292877
font_02_sfnt_off00008fa1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8FA1 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f
font_03_sfnt_off00009da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9DA3 7368 bytes
SHA-256: 0063e33e5f07f70915998ec3bf8a160158a3868cf5930fb2f4a5a1b1916706f2