Malicious PDF — malware analysis report

Static analysis result for SHA-256 01c502274e817831…

MALICIOUS

PDF

43.9 KB Created: 2020-08-25 10:56:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e08bffb383540a264ba123fd8a84bee5 SHA-1: a0357c8e87bee464afc41c69faf6cfd9750ec9db SHA-256: 01c502274e8178310334d99f12cdc9c861b18d717d04ce9a4c19fdcf581df81e
210 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded URLs, including one pointing to a known malicious redirector (ttraff.cc). The document body, though partially corrupted, suggests a lure related to an 'application for leave form csc' and includes a call-to-action phrase, aligning with phishing tactics. The presence of a link farm and a redirector indicates an attempt to lead the user to malicious content, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 7

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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.cc/pify?keyword=application+for+leave+form+csc In PDF document text
    • http://files.knzafm.com/uploads/1/3/2/6/132695321/fapubefurusezo-fijul.pdfIn PDF document text
    • http://files.homeartscontentandcopywriting.com/uploads/1/3/1/8/131858540/vebibuwugodow.pdfIn PDF document text
    • http://files.daydreamscakecompany.com/uploads/1/3/0/7/130739251/370294427f1e1.pdfIn PDF document text
    • http://files.lembixlab.net/uploads/1/3/0/7/130739686/3978710.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/1/0444/5070/9671/files/wamaxolunutavofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7540/3936/files/49983572603.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9315/5237/files/57151528923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5883/0231/files/gintama_episode_guide_season_1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8106/4853/files/carburizing_heat_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/irritant_diaper_dermatitis_guidelines.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4440/5397/files/73231361864.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 6

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_off00006ed2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED2 5208 bytes
SHA-256: e6fc365f1e4b8df8e1adb64197811e1779bd3594815d4963b1d4560b5150f3df
font_01_sfnt_off00008071.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8071 10136 bytes
SHA-256: 614c18463886791cbbb13efb50a4d42e00d16a82b3ba506606247ba494a3c67a

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