Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3bd627c9fdec662…

MALICIOUS

PDF

101.1 KB Created: 2020-08-05 23:03:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d030927fb38ce33e9c49c6b482f4b4b4 SHA-1: fb92dac66a2bb32a247183c707da820490f08b7d SHA-256: e3bd627c9fdec6627a1d84baf78fedb02d64661199126d34d8b62f8bb5cae8e4
234 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector URL (https://ttraff.cc/pify?keyword=ant+colony+optimization+pdf+2020). This indicates a likely attempt to lure users to malicious infrastructure, potentially for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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=ant+colony+optimization+pdf+2020 In PDF document text
    • http://files.lifeunshattered.com/uploads/1/3/2/8/132815767/detimad-kedeniduxizoli.pdfIn PDF document text
    • http://files.fengshuixing.com/uploads/1/3/1/0/131069934/68d5c.pdfIn PDF document text
    • http://files.alpinelegendspixiebobs.com/uploads/1/3/0/7/130776795/lekonuvuborod.pdfIn PDF document text
    • http://files.dreamoncurls.com/uploads/1/3/1/1/131163858/liwejad.pdfIn PDF document text
    • http://files.brooklynprimary.school.nz/uploads/1/3/0/8/130874493/3082819.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/12138377435.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8014/5313/files/7590683923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/8622/3262/files/wijomiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4681/3346/files/franklin_covey_planner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8476/6620/files/58356375463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4077/5064/files/27638581798.pdfIn macro / runtime command snippet
    • https://cdn.shopify.com/s/files/1/0430/9755/5093/files/rakapuvivufadanuwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3692/6374/files/30324965459.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0640/2453/files/jajizowu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3274/6906/files/14299550075.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/horaire_ligne_2_alterneo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000121c8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x121C8 5112 bytes
SHA-256: 55b79ffcbb13e8dfc8352f269ea533901823dcc34bc362223c5fbd6a040727bf
font_01_sfnt_off00013319.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13319 14824 bytes
SHA-256: baa7ca09247c53fd3ede7592a82978f89ec7f74043ab5e643a584e0cdba3cbbe
font_02_sfnt_off00016255.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16255 16260 bytes
SHA-256: 893e6e9ee11e29dd7bd1d5ca7aca18c3604daefb51990c21de46a6c05ac6f8dc
font_03_sfnt_off000177e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x177E8 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

Open this report in the interactive analyzer, or submit your own file for analysis.