Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d27f8aa2389fa0…

MALICIOUS

PDF

66.6 KB Created: 2021-09-29 10:22:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-28
MD5: ff50172170f3110499e07504611156de SHA-1: 34ab027cd78028819b0020ba6a7bd6adcf6969e2 SHA-256: c5d27f8aa2389fa0cb29661fa00a61a62d01cd30df043803aabe8801828864dc
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 66 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://cructi.ru/uplcv?utm_term=quickshot+premium+apk PDF link annotation
    • http://ritadas.in/userfiles/file/ranab.pdfIn PDF document text
    • https://domilot.com/uploader/files/rivomirexulukinirug.pdfIn PDF document text
    • http://szermgrt.hu/uploads/ckfinder/userfiles/files/20511235680.pdfIn PDF document text
    • http://tercovci.cz/files/file/59551328926.pdfIn PDF document text
    • http://christmaslandint.com/userfiles/liwader.pdfIn PDF document text
    • http://cungcapbaoduongcuanhatban.com/upload/files/88573906330.pdfIn PDF document text
    • http://panhongbo.com/ckfinder/userfiles/site_eachfun_com/files/5923714143.pdfIn PDF document text
    • http://pazarziraat.com/userfiles/file/24165512073.pdfIn PDF document text
    • http://sieckultury.pl/wp-content/plugins/super-forms/uploads/php/files/91863cc2c200cc2d857e5b0c791fee2d/mowagax.pdfIn PDF document text
    • http://3q1p.com/upload/file/210913052334664126gwke5n9xjzln.pdfIn PDF document text
    • https://www.costaverde.it/wp-content/plugins/formcraft/file-upload/server/content/files/1614aed3c8f044---topopevesevebune.pdfIn PDF document text
    • https://drbumbnursinghome.in/ckfinder/userfiles/files/52470220420.pdfIn PDF document text
    • http://ritadas.in/userfiles/file/65435803997.pdfIn PDF document text
    • http://twatpchome.touchance.com/userfiles/file/teviwasupokotoniwu.pdfIn PDF document text
    • http://01host.ru/userfiles/files/jodigozarelarin.pdfIn PDF document text
    • http://dakhoanhanai.com/images/files/jixevawopenumema.pdfIn PDF document text
    • https://biroestarsa.hu/uploads/file/53992845171.pdfIn PDF document text
    • http://debsecond.net/UserFiles/File/kulibobuwufepawexanifezub.pdfIn PDF document text
    • http://bona-agra.pl/Upload/file/31813276559.pdfIn PDF document text
    • https://senegal4d.com/contents/files/41105401091.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000a99c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA99C 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0000c1ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC1AE 14020 bytes
SHA-256: d8e1d6191a3ed382edbed5c482fb42031b4bcf583e2ea7052498af2f1b1395f3
font_02_sfnt_off0000e484.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE484 10740 bytes
SHA-256: bf3f0a21a5157529888832bf60ded6be55d0e29502ef104ad7408c8e1656182c

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