Malicious PDF — malware analysis report

Static analysis result for SHA-256 5b57210b9a136071…

MALICIOUS

PDF

122.0 KB Created: 2020-08-02 10:44:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ca51bc5fd6b4fee53fa74a3787e6ed3 SHA-1: c85fc36b7b90577bac092be547248f0897b8e484 SHA-256: 5b57210b9a1360716a1a9b0fba10aec40a7cb76d7c83292d602a6258f50d0782
214 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF contains numerous links designed to appear as a download for a 'Samsung microwave manual', but these links redirect to malicious infrastructure, specifically the 'ttraff.cc' redirector. The presence of a large number of external PDF links and the ML classifier's high confidence score indicate a malicious intent to lead users to harmful content. The document body, though heavily obfuscated, contains the malicious URL.

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=samsung+microwave+manual In PDF document text
    • http://files.jamestrankina.com/uploads/1/3/1/4/131437615/6edc24.pdfIn PDF document text
    • http://files.mylenebaxterconsulting.com/uploads/1/3/1/3/131380126/d30d4630138ca18.pdfIn PDF document text
    • http://files.lizziehobbs.co.uk/uploads/1/3/0/8/130814043/jefeboromumuw-kanaruzewu-tamexuwinerop-xotewikebezuz.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/1/0432/1483/1780/files/85403953593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/12882243690.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8278/4676/files/dimuzejabixujatiwusun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1593/7948/files/fiwofelixuwoziporanuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0577/0904/files/23971657847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3559/8758/files/93368881298.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0083/9841/files/fetekedemubotema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/botudurodakokebavexosox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0864/7580/files/wasigaragesodiwevuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1341/3786/files/vabanotosawe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/tituzamajufovuvoxekixumu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/synapse_roblox_website.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_off00019536.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x19536 5372 bytes
SHA-256: dafccb1b8a1d2512153d99a7f4e5ffae5256c62cf9084ba031b60f09975e0dca
font_01_sfnt_off0001a779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A779 16652 bytes
SHA-256: 9efe88b24060cfff5cb825524bf7788ab9fe66d9e63461bf588d19acb21dd516