Malicious PDF — malware analysis report

Static analysis result for SHA-256 31f5498587a52842…

MALICIOUS

PDF

45.2 KB Created: 2020-08-14 14:22:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ddf87041809b8b77d7110a5a4d045abc SHA-1: 4c56ab64e76097158751bfe4ca929ceaf9132313 SHA-256: 31f5498587a528422453203d705ae3bea7afcbdc28f5e3bd44c95bb0c2bc393b
234 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including a critical finding of a redirector link to a known malicious domain and a high-severity finding of a payment redirection lure. The document body, though heavily obfuscated, contains text related to 'sbi cheque book letter format' and embedded URLs, suggesting a phishing attempt. The primary malicious URL identified is https://ttraff.com/pify?keyword=sbi+cheque+book+letter+format, which is likely used to redirect the user to a phishing site.

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.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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=sbi+cheque+book+letter+format In PDF document text
    • http://files.speakingintears.com/uploads/1/3/2/3/132302810/3860553.pdfIn PDF document text
    • http://wunilis.pchschoirs.com/uploads/1/3/1/1/131164250/nosijezididur_dafofeb_tizogi_gixesutepudado.pdfIn PDF document text
    • http://davituwu.meganmmoore.com/uploads/1/3/0/7/130738973/jufemeresigifodakug.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
    • https://cdn.shopify.com/s/files/1/0429/1470/9663/files/37248708708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8070/2366/files/33390293133.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2165/3400/files/tahoe_pontoon_boats.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7732/0348/files/6640889777.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1030/8765/files/good_books_to_read_during_pregnancy_for_baby.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3974/2369/files/89820088345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/83054958578.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5804/3807/files/petabok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/4166/4669/files/vyond_character_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2131/1898/files/27554014642.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9831/6705/files/96263753242.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 4

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

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000066b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66B1 5152 bytes
SHA-256: 2322c6038b06580d9eb1746a84b196c3b4882c1fbe1f3ce797a6312e6313886f
font_01_sfnt_off00007839.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7839 9940 bytes
SHA-256: 8f1c8f9d6196a7184fa23950d0e49dae3304f097180fc4f970f3b9844ed80df3
font_02_sfnt_off000099f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99F7 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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