Malicious PDF — malware analysis report

Static analysis result for SHA-256 ad3169aa4c18ea74…

MALICIOUS

PDF

43.9 KB Created: 2020-08-22 22:02:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1ef224f3be1f23d5c2ef8810e854c5e5 SHA-1: d2058d00207691f85d5fc5b8b0dcc82ef462c6fc SHA-256: ad3169aa4c18ea74bbcf4e9dad6be1395939973d12e92e5f98141832a8a0f742
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though partially corrupted, contains text related to an 'earthquake drill narrative report sample' and includes the malicious redirector URL. This suggests a phishing or social engineering attack aiming to lure the user to malicious infrastructure.

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=earthquake+drill+narrative+report+sample In PDF document text
    • http://govamam.interdynartis.com/uploads/1/3/1/4/131437502/xepeduwipo.pdfIn PDF document text
    • http://files.bluenosewoodworks.com/uploads/1/3/2/8/132815961/somokirolurujewikusi.pdfIn PDF document text
    • http://fedoba.richmondinsight.com/uploads/1/3/1/8/131858419/46818.pdfIn PDF document text
    • http://mopojatum.tmfherefords.com/uploads/1/3/0/7/130776418/vapazike.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/1/0432/7076/6750/files/92588120008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3917/0466/files/65162520327.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5222/1091/files/22831902621.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9856/1948/files/echo_doppler_carotidien.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/11221047994.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8450/4474/files/linux_shell_scripting_cheat_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4168/5665/files/dofepudagenireguledojeta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0965/4432/files/xisukenavudazamokivovele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0451/0887/files/letter_from_birmingham_jail_summary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7445/2632/files/jerufunazeluwuwoje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/ms_excel_2020_tutorial_in_marathi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0001/0664/files/caritas_university_application_form.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 8

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_off00006d5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D5C 5404 bytes
SHA-256: bde67ea3a2efbb889ad3e69ed07bbd276402264d87592597cf942a20499af544
font_01_sfnt_off00007f94.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F94 10316 bytes
SHA-256: 4fa34d7822b82b44b2f2a5a09ca88d73ecd7b85482aea7a6c7cd9fc54e092967

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