Malicious PDF — malware analysis report

Static analysis result for SHA-256 a393af0affa17a42…

MALICIOUS

PDF

42.9 KB Created: 2020-08-20 22:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cef4a5efda54a6017716e5de9578093f SHA-1: eb34db6e94f397e76a18ba33e6463e8794116cac SHA-256: a393af0affa17a423744ba21715df6d11e400503cfeac20d3fde4816fc90805b
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, suggesting a phishing or scam attempt. The document body, though heavily obfuscated, contains a URL that appears to be a lure for a free download. The presence of embedded links and the ML classifier's high confidence score support a malicious classification.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=airline+tycoon+deluxe++kostenlos+deutsch In PDF document text
    • http://files.pezularealty.com/uploads/1/3/0/9/130969966/lelurib.pdfIn PDF document text
    • http://files.glovarnet.shop/uploads/1/3/1/4/131438718/xiribudona_sipav_xodefuxilas.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/1/0428/0070/9791/files/180497558.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0510/0707/files/xurulomev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7485/3793/files/54533648158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/sivezijikok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0008/6180/files/gomujuvokafaxadototixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/meragavafeduxilaxopuxaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5354/5632/files/mutosogakaneleb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/7930/6135/files/73723145375.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6286/1730/files/australian_citizenship_test_questions_and_answers_printable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wefudebavisizaku.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE9 4924 bytes
SHA-256: 87fa4ade654bf6466cf5a59fc5bf5ba0984a66f5df5e4fd09fb7be055f06cc97
font_01_sfnt_off00006ca2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CA2 10532 bytes
SHA-256: d538466f403d5f2e64aee05482c2e2f13147054ac264b3607d71a424719169d8
font_02_sfnt_off0000909e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x909E 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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