Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0ad09adbf73978d…

MALICIOUS

PDF

63.0 KB Created: 2020-07-28 16:17:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fa62985c60f38ce19f302f4ea03facdc SHA-1: b5112fd2fa9721e020cb70b3da0b188780cb6699 SHA-256: a0ad09adbf73978de930c41aabd882a3126ba4b0fb01a7a84b1e14c1f7eb1e6f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link T1059.001 PowerShell

The PDF contains numerous links to external resources, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, appears to be related to academic content, suggesting a lure to trick users into clicking malicious links. The presence of a malicious redirector indicates an attempt to lead the user to a site for phishing or malware delivery. No scripts were extracted from this sample.

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=bandura+1977+social+learning+theory+pdf In PDF document text
    • http://files.collarclub.co.uk/uploads/1/3/1/4/131437699/e5ebfbee100.pdfIn PDF document text
    • http://files.brasecollection.com.au/uploads/1/3/1/0/131070581/meligugi-mavajowixuzapo-putugujafi-zuxikijaxevedef.pdfIn PDF document text
    • http://files.sail-cg.com/uploads/1/3/2/6/132682134/d6b1b60909.pdfIn PDF document text
    • http://files.dontworryaboutme.com/uploads/1/3/0/9/130969003/wuziragutilejabajob.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/1/0428/5405/6095/files/35077898894.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1129/0782/files/getuparerexepiwimu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/45440883759.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0437/files/36326194900.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/82434646710.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8849/5270/files/tatapuwunaris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6738/3716/files/72592698334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7422/3269/files/rawigosawax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1741554469.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5567/5542/files/87529032897.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/49236590419.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2639/0946/files/mukobenoluwisi.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 5

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_off0000b91d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB91D 5736 bytes
SHA-256: 6ab14aa043a6bc036ce292b1f1045b8499770c2c856159094f1bf9095749258a
font_01_sfnt_off0000ccb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCB0 9980 bytes
SHA-256: 8ed1257c66e3cd830f4742e3d99645f93783ea3eb9d389db60dccf201eef743f

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