Malicious PDF — malware analysis report

Static analysis result for SHA-256 b82e00e9061e3a4d…

MALICIOUS

PDF

39.2 KB Created: 2020-08-21 00:40:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07fc9a3370bea916048622866e96170a SHA-1: 15fa13024fa64414d3e1742430379fc8424d8d36 SHA-256: b82e00e9061e3a4d92415f1b9c9fb6d5644e8d256f139f7a863da784ba55e909
170 Risk Score

Malware Insights

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

The PDF file contains a deceptive lure, presenting itself as an 'Admit card 2019 class 10' to trick users into clicking embedded links. One critical heuristic identified a PDF link to a known malicious redirector at 'https://ttraff.com/pify?keyword=admit+card++2019+class+10'. Another heuristic flagged the document as a PDF link farm, containing numerous external links, many hosted on cdn.shopify.com, suggesting an attempt to distribute malicious content or engage in SEO abuse. No scripts were extracted from this sample.

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.
  • SEO-redirector lure link (multi-word utm_term) low PDF_SEO_UTM_REDIRECTOR_LINK
    PDF contains a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the search-keyword gateway used by the 'free document download' phishing family. Surfaced as an IOC; on its own this is a low-confidence signal.
  • 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=admit+card++2019+class+10 In PDF document text
    • http://files.avoiceforkids.com/uploads/1/3/2/6/132695543/b39543675.pdfIn PDF document text
    • http://jenuno.brokencompasslifestlye.com.au/uploads/1/3/1/4/131438177/rezama_zoleniwusivabe_kuvekemeloka_doxam.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/1/0459/2546/6279/files/android_device_policy_manager_reset_password.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4247/1064/files/jibugiruw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5430/8245/files/pengertian_bronkopneumonia.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5699/6247/files/vofelajutotametos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xokuwunojuvilil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9981/4056/files/62420228248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0227/3703/files/37020293335.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7106/2684/files/xuxopularale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3116/7137/files/kaxurefudugisifaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4798/4026/files/pazuvawizesivepufijokefel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3521/files/24278051784.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 1

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_off00005b83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B83 5556 bytes
SHA-256: dab828e5ddaaa10fb14d72d3aeabaeecb55c6eea30ae75b83072f27e91e66f8b
font_01_sfnt_off00006e42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E42 10024 bytes
SHA-256: 6f81bed9e3e41b70a6aac588de054a9db540c41c20a19be4a335614a3e86da89

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