Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc1d1fc6dfb0e6fb…

MALICIOUS

PDF

54.1 KB Created: 2020-08-23 09:59:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3754b6da4aadc5e815439e0551aaf6d3 SHA-1: 9f2c5d5bd46a5ef2eca20cdb9b5fb601d7191767 SHA-256: dc1d1fc6dfb0e6fbed3d0c8b284e05bbba1795d68c5b3a0cee8bee0b31153537
194 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=karuppasamy+dj+remix+songs' which is flagged as malicious. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm or SEO poisoning tactic to distribute malicious content.

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.com/pify?keyword=karuppasamy+dj+remix+songs In PDF document text
    • http://files.soccercolony.com/uploads/1/3/1/3/131379060/lukufezevafino.pdfIn PDF document text
    • http://xotut.ittakesavillageys.com/uploads/1/3/0/9/130969130/5053889.pdfIn PDF document text
    • http://samakegot.healthyskinabc.com/uploads/1/3/1/3/131383544/dovojusegesej.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7430/4662/files/lugumisifosapi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1149/6343/files/65035604425.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6299/2795/files/62338041951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1423/4017/files/30460850350.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0895/8362/files/wutanemozatiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nakoximowukod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/14962757110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9604/3674/files/final_fantasy_14_dps_meter.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5961/5646/files/zibereken.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2936/4889/files/financial_performance_analysis_project_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8864/9123/files/wikajejatuvis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6728/4383/files/74549934113.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000064ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64AB 5464 bytes
SHA-256: 89309b73155a511f0e04f70d7051ec4c8f4a02484fc23aa0f9535b5348461e9d
font_01_sfnt_off00007748.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7748 11904 bytes
SHA-256: ba088923171ee8b68065b9f402589cd3134e8ea320f649726c054a6916e6aa18
font_02_sfnt_off000095c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95C3 1872 bytes
SHA-256: 0d99920604c987ea8e2d59508795b63e1d9eddc46f728d2906f6fb3d29e52a2a
font_03_sfnt_off00009eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9EAF 14280 bytes
SHA-256: 4640919377073795948f9723f89bf3d55022dfa111fdd9ffa8b5864e768cd133