Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcacea8db120c9aa…

MALICIOUS

PDF

44.2 KB Created: 2020-07-19 20:47:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 754153a4e40ab1b8baf5c8c467bbd71a SHA-1: 3517a6cc772bc2d722c923d6f93557b82ce65a4c SHA-256: fcacea8db120c9aa019d6f4c8e10e99abc584e4790bd6e06d98f74c78515229c
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a technique often used to obscure malicious destinations and engage in SEO link farming. One of the primary links directs to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'employee monthly attendance sheet pdf', suggesting a social engineering lure.

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/wb?keyword=employee%20monthly%20attendance%20sheet%20pdf In PDF document text
    • http://files.ukcitizenshipbyinvestment.com/uploads/1/3/0/7/130740298/9427040.pdfIn PDF document text
    • http://files.laurendeserres.com/uploads/1/3/1/1/131163740/mejavaxebowi.pdfIn PDF document text
    • http://files.moannasworkroom.com/uploads/1/3/2/6/132681796/gopitowi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://bawegepagema.files.wordpress.com/2020/07/vireb.pdfIn PDF document text
    • https://sutuzor.files.wordpress.com/2020/06/xajomukitogufanoxa.pdfIn PDF document text
    • https://pigumofow.files.wordpress.com/2020/06/88091991772.pdfIn PDF document text
    • https://xuzuxogoguka.files.wordpress.com/2020/06/89882289096.pdfIn PDF document text
    • https://pelidabavigi.files.wordpress.com/2020/06/42882798555.pdfIn PDF document text
    • https://lipimuz.files.wordpress.com/2020/07/ribebonobajerosiruzov.pdfIn PDF document text
    • https://saguwer.files.wordpress.com/2020/07/95677761428.pdfIn PDF document text
    • https://tepejiwo786338983.files.wordpress.com/2020/07/94345919063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5704/5913/files/varexek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3365/7495/files/dajavapesutukifaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8839/6959/files/32066034633.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1708/3803/files/lekuxufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fisebupujavilugux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8462/7616/files/41270316560.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1077/files/darojolexadanabomixu.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 6

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_off0000714b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x714B 5096 bytes
SHA-256: 099e55438e773e6b490edf6aff819fa5325680bb763925af14912d3577360bb9
font_01_sfnt_off0000827a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x827A 9636 bytes
SHA-256: 9839d4593208bc32b498c78e050709175877c765b32abca18c55c808c368a5c9

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