Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe7c11bc3dd4fbbb…

MALICIOUS

PDF

54.2 KB Created: 2020-08-23 11:25:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 0a40baa41c16f55da4a42077d3e8aeb4 SHA-1: cbb8986cbdafd24c5df2b200c8d19354741bbf5b SHA-256: fe7c11bc3dd4fbbb214526ec00847214567b02be802d72c9e3b93f650fd0c17c
194 Risk Score

Malware Insights

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

The PDF document contains embedded links that lead to a malicious redirector, identified by the heuristic PDF_MALICIOUS_REDIRECTOR_LINK. The document body text, though partially corrupted, suggests a lure related to payroll documents ('modele fiche de paie 2018 pdf'). The presence of numerous external links, as flagged by PDF_SEO_LINK_FARM, further supports a malicious intent to drive traffic to potentially harmful sites. The ML classifier also strongly indicated maliciousness.

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=modele+fiche+de+paie+2018+pdf In PDF document text
    • http://files.mrsothomascookies.com/uploads/1/3/1/6/131606876/1320964.pdfIn PDF document text
    • http://files.applewoodcare.com/uploads/1/3/1/4/131438869/5310839.pdfIn PDF document text
    • http://litobofu.southmadisonunite.org/uploads/1/3/1/4/131409236/tamirodetew.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/1/0444/2364/3303/files/48853664895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zaxolaxowixinetubosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8844/5604/files/pusarusawupewito.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1558/5448/files/61546639097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0306/7044/files/63787481809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3278/8648/files/hierarchy_of_needs_a_theory_of_human_motivation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2685/6610/files/mitimimijujiluviw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/amino_acid_metabolism_download.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_off00006e14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6E14 5096 bytes
SHA-256: 867c6ac16520473867045959b5ee2f9f5295615aac02fe25ca46356b84edfb67
font_01_sfnt_off00007f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F76 12452 bytes
SHA-256: 824200700ea7ee03f6e20f01e5fdd946dfa2557de91349fe6ae928c2e6ec60ca
font_02_sfnt_off0000a6fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA6FA 16208 bytes
SHA-256: c691c2dc236ff1c3149f8178f30dcb30456d959af2bd230901b395ad55359d31
font_03_sfnt_off0000bc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC39 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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