Malicious PDF — malware analysis report

Static analysis result for SHA-256 3f1239353a6e556b…

MALICIOUS

PDF

45.4 KB Created: 2020-08-23 06:23:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 85fdab14bccf40f5d39f51e1d28e2c33 SHA-1: 447244ca65487fd73354addedb0f55bd1b1dc19b SHA-256: 3f1239353a6e556b9c75012f067c70ebb7e50397315b96a54ed27af306dba406
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=circus+charlie+game'. The document body, though heavily obfuscated, also contains this URL and other links to Shopify domains, suggesting a link farm or redirection strategy. The primary intent appears to be directing users to malicious infrastructure, likely for further exploitation or phishing.

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.cc/pify?keyword=circus+charlie+game In PDF document text
    • http://files.wcsuticklab.com/uploads/1/3/1/4/131454696/1498399.pdfIn PDF document text
    • http://files.gibsonspropertyservices.co.uk/uploads/1/3/0/7/130739268/7916a38c.pdfIn PDF document text
    • http://bezini.birthbliss.co.uk/uploads/1/3/2/7/132740285/7755188.pdfIn PDF document text
    • http://files.thepjtfoundation.org/uploads/1/3/0/9/130969474/jafokigefapuzojek.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/1/0427/4146/5244/files/vatilepod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1288/files/bogol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0579/files/2471082237.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4353/4486/files/fuxajutumoputexan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6967/7474/files/after_libro_2_descargar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7331/4715/files/2476282035.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9323/7665/files/historia_natural_de_diabetes_mellitus_tipo_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7922/7810/files/64190571708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2005/0855/files/74369186516.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9365/5716/files/kexuvafokulavopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3937/5012/files/wound_management_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/9126/4413/files/ad_infinitum_1_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3577/1558/files/spanish_phrases_with_english_translation.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_off00006191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6191 4876 bytes
SHA-256: f289c2248c87cf07464ba0e92a296bd77452828f16f99f6d45d67d4e7854632f
font_01_sfnt_off00007269.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7269 5116 bytes
SHA-256: a56711138f16f349dd63967c76cec99c79c1b822bea36c6a8bb71f30e7625307
font_02_sfnt_off000083a4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A4 11352 bytes
SHA-256: 55b555514375fd6e23a6455ed0d26948c50925acd9d304352eb22ff1e119dec1