Malicious PDF — malware analysis report

Static analysis result for SHA-256 7114d1cb029a459c…

MALICIOUS

PDF

79.9 KB Created: 2021-09-03 20:01:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-05
MD5: 1366199b290517c35b82d167915edc3e SHA-1: cc81a797a5e8199c6b3b3c2c6380c02615ba2d43 SHA-256: 7114d1cb029a459c4d85400b60b37bb3af6d1a89707c83bafc203802ef87096c
172 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded JavaScript and numerous external links, some hosted on compromised WordPress sites, suggests it is designed to lure users into downloading further malware. The heuristic 'SE_INVOICE_LURE' further supports the phishing pretext, likely aiming to trick users into interacting with malicious content disguised as a legitimate document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9960

Heuristics 8

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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 https://www.ltgpartners.com/wp-content/plugins/super-forms/uploads/php/files/78c7f7de9579f7b8e297dde7dbd643e5/rijonegugajodiza.pdf In PDF document text
    • https://celovechurch.org/wp-content/plugins/super-forms/uploads/php/files/d439e05db90fa8a9380aaf43f5242e41/73527986156.pdfIn PDF document text
    • http://harlit.com/ckfinder/userfiles/files/20210703_152027.pdfIn PDF document text
    • http://shopgraeagle.com/ckeditor/uploads/files/65057952352.pdfIn PDF document text
    • https://hongmao.tw/uploads/files/202108140030524850.pdfIn PDF document text
    • http://mijneigenlift.nl/wp-content/plugins/formcraft/file-upload/server/content/files/16076e8e861368---xizidudiwefodeva.pdfIn PDF document text
    • http://adance0112.com/upfile/editor/file/1079965800.pdfIn PDF document text
    • http://alibabashipping.com/userfiles/file/90756574240.pdfIn PDF document text
    • https://imahima.xyz/js/ckfinder/userfiles/files/jiwerilikujimogagebefawig.pdfIn PDF document text
    • https://cmflower-kkc.com/ckfinder/userfiles/files/vewabuj.pdfIn PDF document text
    • http://juha.be/_files/file/86468718111.pdfIn PDF document text
    • http://chocolatycakes.com/wp-content/plugins/formcraft/file-upload/server/content/files/1612fb1694efc1---mijikanomokipedokefi.pdfIn PDF document text
    • https://samiznojmo.cz/wp-content/plugins/super-forms/uploads/php/files/76d5311a970aefdb3fcd509f18273986/72950198167.pdfIn PDF document text
    • http://www.leads-bd.org/app/webroot/js/ckfinder/userfiles/files/78887844048.pdfIn PDF document text
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607d867f76dff---75257720496.pdfIn PDF document text
    • http://www.diplomat2014.ru/ckfinder/userfiles/files/32501946888.pdfIn PDF document text
    • https://www.davinci.dk/wp-content/plugins/formcraft/file-upload/server/content/files/1607bbbc379738---zemufobagupu.pdfIn PDF document text
    • http://www.marsagri.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b8aa2c1843a---19020603498.pdfIn PDF document text
    • https://alutat.com/data/file/revofofewisovudagu.pdfIn PDF document text
    • http://riskhedgetech.com/uploaded/file/116818755860a0198f7b83d.pdfIn PDF document text
    • http://drinkandshrink.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1608e87fcd8fb7---39162527736.pdfIn PDF document text
    • https://nestaerospace.com/uploads/file/reluzelixubenelupaxudaz.pdfIn PDF document text
    • https://www.officinadelgustoroma.com/wp-content/plugins/super-forms/uploads/php/files/6de44893cff8183eb5e1b0f0f5492acd/82663602694.pdfIn PDF document text
    • https://feedproxy.google.com/~r/Uplcv/~3/zMnd8XtcwSM/uplcv?utm_term=bank+reconciliation+mcq+pdf+with+answersPDF link annotation
    • 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://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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d2c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD2C7 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000eade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEADE 11260 bytes
SHA-256: 4ff9d0dcc6d4608f2dbd98ac9fbc6ec24be2aa84d760323b2e08a8cb61085a0e
font_02_sfnt_off000104f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F4 17260 bytes
SHA-256: 905957e7d551a365aebc1f674ce406e1bdc0f8c0ee10fb4a2f387bdc2a24f7f2

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