Malicious PDF — malware analysis report

Static analysis result for SHA-256 844297446c5ef56e…

MALICIOUS

PDF

40.3 KB Created: 2020-08-15 07:30:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 07416ffb07cb656bd94a27af3bb4aa08 SHA-1: 6a85f2025a6447b0f12f84b5f70a11abef844836 SHA-256: 844297446c5ef56e602073e478609ff19fb2b33bafa806958b1c6b9d5fdf38e3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically identified as a malicious redirector by heuristics. The document body and heuristics indicate a lure for a 'powerpoint org chart template ppt', which is likely a phishing or scam attempt to drive traffic to malicious sites. The ML classifier strongly supports the malicious nature of this PDF.

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=powerpoint+org+chart+template+ppt In PDF document text
    • http://files.focusedontheword.com/uploads/1/3/1/0/131070045/lurumaxutaf_fasez_posunoseg_jesun.pdfIn PDF document text
    • http://pixovapa.pdcopportunitycenter.org/uploads/1/3/1/4/131437987/rakamabo.pdfIn PDF document text
    • http://jomug.australianworkingadventures.com/uploads/1/3/1/3/131383483/fumebojubadekom.pdfIn PDF document text
    • http://zirokewe.supportrealheroes.com/uploads/1/3/1/6/131606490/4898638.pdfIn PDF document text
    • http://xerita.thebyapblog.com/uploads/1/3/1/6/131606289/vulemawur.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/1/0431/9592/4640/files/xepikarikoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6339/1894/files/ulcerative_colitis_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7423/9129/files/zidevutukogomaru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/23511891419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/pepobefagozikisabepebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6055/9013/files/10779337661.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3598/4029/files/72259479696.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2338/5247/files/woxel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9468/8419/files/chuyen_file_anh_sang_word.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_off00006108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6108 5260 bytes
SHA-256: 3ba527942d7c82eb7ffbd76bef53ba2d36690d673305cba4de4595ce83a773e8
font_01_sfnt_off000072d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72D1 9800 bytes
SHA-256: f193af739fbf112d00a3236f6c167794051a4659dbd0e25c7fd3f6b25e6cb83d

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