Malicious PDF — malware analysis report

Static analysis result for SHA-256 3858c607efa24501…

MALICIOUS

PDF

40.4 KB Created: 2020-07-23 12:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d05e6d3e251560fc69438d54f44b4336 SHA-1: 60794c636b8bd37973403a6cd45d2c7230026792 SHA-256: 3858c607efa2450126df706ee52a7192849d66854d885375b487ff1679499667
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with a critical heuristic identifying a link to a known malicious redirector infrastructure at 'https://ttraff.ru/pify?keyword=credit+risk+assessment+report+sample'. The document body, though heavily obfuscated, suggests a lure related to 'credit risk assessment report sample'. The presence of many PDF links and the ML classifier's high confidence further support a malicious classification.

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.ru/pify?keyword=credit+risk+assessment+report+sample In PDF document text
    • http://files.simuelconsulting.com/uploads/1/3/2/7/132711947/lewav_sibesoxu_dukipareked.pdfIn PDF document text
    • http://files.singersandactorsworkshop.com/uploads/1/3/2/7/132740218/mubazaxumadajag.pdfIn PDF document text
    • http://files.framemysore.org/uploads/1/3/1/3/131384789/7349004.pdfIn PDF document text
    • http://files.haciendasonoma.com/uploads/1/3/2/7/132740218/7130198.pdfIn PDF document text
    • http://files.dgdriver.com/uploads/1/3/0/7/130775506/noniredik-bapuvik-monilabid.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/1/0430/8379/2533/files/91696824439.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1130/9719/files/20422712896.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/lodanaxepevewirobomus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1136/7331/files/xumoxuwivomatafefowogixi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/36168696347.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/8757937677.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/25911018847.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7076/files/97788140748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/28345476981.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/mekizuzolidokobejoxisogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1234/9334/files/70851064862.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 8

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_off000064de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64DE 4980 bytes
SHA-256: cda0ddc44eab5691327b4a1b63aa2c0ba680bb0e53faccca96b212eb5454d28c
font_01_sfnt_off000075b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x75B1 9040 bytes
SHA-256: 6172d289ada53ed7ace69723e8840fc7b3a160f310127f16901f2928019f4021

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