Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea2864656ecbe59e…

MALICIOUS

PDF

41.4 KB Created: 2020-07-01 03:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ad2e4cfaf69a41c5be24f27f232e031d SHA-1: 1d56ca3182f560eac6be3671e21e796bc2319148 SHA-256: ea2864656ecbe59e309fe5e7a7229c180f5cab2c2b94ffae5363a109d081ae19
96 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to domains that appear to be part of a link farm. The document body, though partially corrupted, contains text related to 'M etier biblioth ecaire formation' and includes several URLs. The ML classifier strongly indicated maliciousness, and the PDF_SEO_LINK_FARM heuristic confirms the presence of a mass external link farm, suggesting a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://files.pleasingfood.com/uploads/1/3/0/6/130639251/130639251.html#m%25C3%25A9tier+biblioth%25C3%25A9caire+formation PDF link annotation
    • http://uwsc.net/uploads/1/3/1/4/131406650/sikawixumi-mejuf.pdfIn PDF document text
    • http://files.amberward.org/uploads/1/3/1/3/131384418/babivalefafujim-lukokadepad-rubomev-gitigudet.pdfIn PDF document text
    • http://visitsxm.org/uploads/1/3/0/6/130639254/3383814.pdfIn PDF document text
    • http://autodiscover.northernlightllc.com/uploads/1/3/1/4/131410747/wewalin.pdfIn PDF document text
    • http://northernlogic.co.uk/uploads/1/3/1/8/131856279/risudipuw.pdfIn PDF document text
    • http://bnbcappuccino.com/uploads/1/3/0/5/130550732/sipux.pdfIn PDF document text
    • http://dixonassociatesllc.com/uploads/1/3/1/8/131856903/2436169.pdfIn PDF document text
    • http://thebigbearexperience.com/uploads/1/3/1/3/131384606/236e6840c354.pdfIn PDF document text
    • http://lacontagroup.com/uploads/1/3/1/4/131454027/poxelifiwesumalod.pdfIn PDF document text
    • http://host101.carmichaelnl.com/uploads/1/3/1/4/131408008/3f1aa58ea8.pdfIn PDF document text
    • http://files.antoniatsaknaki.com/uploads/1/3/1/3/131380383/3536937.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://fogojifoxuni.files.wordpress.com/2020/06/37021837752.pdfIn PDF document text
    • https://jovemubam.files.wordpress.com/2020/06/jifopasuxurikovizasiwu.pdfIn PDF document text
    • https://fowolabu.files.wordpress.com/2020/06/14749112599.pdfIn PDF document text
    • https://datunexa.files.wordpress.com/2020/06/moxifulewesidem.pdfIn PDF document text
    • https://pofiwofuleb.files.wordpress.com/2020/07/bineroletemalinisulegan.pdfIn PDF document text
    • https://xalofupoz.files.wordpress.com/2020/06/vuwumesidukipapasugun.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_off0000617b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617B 5016 bytes
SHA-256: ceb3dfcc3216a3a64ee2dacb68ea49901c6b210b2eea12bf65812ac10e8ffd18
font_01_sfnt_off00007212.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7212 11640 bytes
SHA-256: 0c720f4297f21740ef8f9667948c400bcf51bc7e124af19d34abe08099b41157

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