Malicious PDF — malware analysis report

Static analysis result for SHA-256 654fff95f47616a3…

MALICIOUS

PDF

44.2 KB Created: 2020-08-24 01:30:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 200312953e7c5cefe58a4ca020bdbae9 SHA-1: 0ad99895411e843642ff5180b4464ea201935a68 SHA-256: 654fff95f47616a3f6b4818f3ef6fffe833a4c7d0f60308040fe679c1326fd00
214 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a known malicious redirector, suggesting an attempt to deliver a malicious payload or conduct phishing. The document body, though obfuscated, contains text related to an "emoluments attachment order template" and includes the malicious URL, reinforcing the lure. The ML classifier strongly indicated maliciousness, and the presence of a link farm further supports a malicious intent.

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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) or Microsoft license-boilerplate documents that carry no urgency or charge/dispute escalation.
  • 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=emoluments+attachment+order+template In PDF document text
    • http://zosov.sankofaoutreach.org/uploads/1/3/2/3/132303382/7548871.pdfIn PDF document text
    • http://paposi.sticksstonesandsweettea.com/uploads/1/3/2/6/132695636/71cdf9fa843214.pdfIn PDF document text
    • http://files.jodieoneill.com/uploads/1/3/1/6/131606402/6315159.pdfIn PDF document text
    • http://files.hilltowns.org/uploads/1/3/2/8/132815003/piguterozizagebabat.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/1/0440/3511/3110/files/free_boat_bill_of_sale_template_ontario.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/36539995947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3740/6870/files/84493959147.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6128/7839/files/bilateral_independent_periodic_lateralized_epileptiform_discharges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/4517/9807/files/adodb_ka_full_form.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/38673173731.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6540/1753/files/tobijazade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4568/2332/files/96616007231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7122/3446/files/granada_albeniz_piano.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3767/7989/files/cover_letter_copy_and_paste_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7105/2703/files/6899451290.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000701b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x701B 5268 bytes
SHA-256: 6c428fc4a2b443f9b1b1e44f1338477b43b5f19e035ad3ddd5ec45b81d937cbf
font_01_sfnt_off000081d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D2 9992 bytes
SHA-256: 714964c7e2d99b8edb52a9d66fdbdd43498da1a3ad6ca21ff28cc40cfcfbaf0c