Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1476c54d249891d…

MALICIOUS

PDF

41.5 KB Created: 2020-08-14 14:58:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 748b717cf62e7b9126703a7928dab41b SHA-1: 3858569a36ab2b24c315e60a3ed6a1f51a6c0389 SHA-256: a1476c54d249891d3c1f7adc9ee6fd567942678005140004a32084cfea364731
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same malicious URL. The presence of a 'SE_MFA_LURE' heuristic suggests the intent is to harvest credentials or session tokens by tricking the user into approving a login or providing a one-time code.

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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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=whatsapp+for+blackberry+z10+free++2018 In PDF document text
    • http://files.ruffworldtraining.com/uploads/1/3/0/7/130775145/8473241.pdfIn PDF document text
    • http://jowenokoz.riotbread.com/uploads/1/3/1/3/131380600/nurekalivowot.pdfIn PDF document text
    • http://files.novamal.com/uploads/1/3/0/7/130776592/8ec6f6005d9a2a.pdfIn PDF document text
    • http://dumiror.activelaboratoryinc.com/uploads/1/3/1/6/131606479/damexiwozix.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/1/0434/0583/6438/files/69317931613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2536/7194/files/zusedabovin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7792/7072/files/71842286018.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1826/4469/files/33574322644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5743/8101/files/83169125773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6146/9596/files/catalogo_carmel_campaa_4_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6847/9906/files/scholarship_letter_of_recommendation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7930/1288/files/rugaposuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6288/6554/files/asme_section_viii_div_1_free_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1689/5133/files/42525310248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9551/3505/files/ielts_writing_sample_answer_sheet.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

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F4 5992 bytes
SHA-256: 6a882cfa4afd1dd94da786acea623f21d268370746061dc9dd357347f27f5b7b
font_01_sfnt_off00007574.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7574 10504 bytes
SHA-256: 44e3a5813e9b179a52a87dfb37c314470b4c07e569f633e670e0e0f3958875e7

Open this report in the interactive analyzer, or submit your own file for analysis.