Malicious PDF — malware analysis report

Static analysis result for SHA-256 2db6ef6ed9cedded…

MALICIOUS

PDF

58.0 KB Created: 2020-08-21 00:06:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4c3cb40713ec5893a2b220a2a86e9097 SHA-1: 18be6ac3d24161e9996a98d1c786aa6548b23a4b SHA-256: 2db6ef6ed9cedded5e22ec007886530cf303be064624c18ae0ec87ab9ec112be
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for phishing or malware distribution. The document body, though heavily obfuscated, contains the target URL. The presence of numerous links to external PDFs, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to attract victims.

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.cc/pify?keyword=speaking+templates+for+toefl In PDF document text
    • http://files.stillnessinmovement.com/uploads/1/3/1/6/131606261/jobaso.pdfIn PDF document text
    • http://files.zazaboocosmetics.com/uploads/1/3/1/0/131070579/mefosexemof-zuridetixu-piwinipetis.pdfIn PDF document text
    • http://files.jshempsters.com/uploads/1/3/1/4/131454620/1375045.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/1/0433/1284/0862/files/sogemebegil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/xewefugiwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8370/1155/files/lesson_plan_template_teaching_strategies.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2100/9053/files/dososekilewuvi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87745409623.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6649/0006/files/fegavo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8776/4387/files/fajepasulovale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2301/4824/files/ipl_2020_schedule_full_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3683/4981/files/gomukobekogivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/kowefa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6902/2109/files/a_level_modern_physics_notes.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009abd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9ABD 2952 bytes
SHA-256: 013fc9f45313cdddd5762e6694753e55f6a85ad2eec225b6e17fd140af1ee5c7
font_01_sfnt_off0000a54c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA54C 5388 bytes
SHA-256: 34ee9c9f892a6ea7e97755dad39059f02f3465cdf03a07daaa8bc66f180ebcc5
font_02_sfnt_off0000b78b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB78B 10128 bytes
SHA-256: 06aac9a95de23c570a51156adbecaf3f4fb0e0e475404f231633c71c0b0f11d2