Malicious PDF — malware analysis report

Static analysis result for SHA-256 93961d665bf720e2…

MALICIOUS

PDF

68.0 KB Created: 2021-02-17 20:48:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 36812ce8429bc835ac0e84e45ac09048 SHA-1: 87635079291e73580da77d82f01e29c39471f554 SHA-256: 93961d665bf720e21872d9c30b295f4f0c1a6285e4b1b0ea831dce28e6b63510
176 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains a significant number of external links, identified as a link farm, suggesting a malicious intent to redirect users to potentially harmful websites. The presence of a QR code lure further supports a phishing or social engineering attack vector. While no scripts were directly extracted, the PDF structure and URL patterns are indicative of malicious activity.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • 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://maypoin.ru/wix?keyword=showbox+apk+2019+ios PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4498992/normal_5ff2012f928a5.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/jhhgchb/sotiwadolekek.pdfIn PDF document text
    • https://cdn.sqhk.co/nurafurofopu/CfhbHX0/97023506044.pdfIn PDF document text
    • https://cdn.sqhk.co/nezafomura/jgjiVid/commuter_bike_shoes_waterproof.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476936/normal_5fe3471c82b63.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366015/normal_601b231a96a17.pdfIn PDF document text
    • https://pazisurezufil.weebly.com/uploads/1/3/4/5/134594691/xuvafikanuzod.pdfIn PDF document text
    • https://cdn.sqhk.co/waxipefimafa/1Rpen5v/rizijiroboloda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387925/normal_5fdd84f0087e9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/jurnal_nasional_budaya_organisasi.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/thinking_in_java_latest_edition.pdfIn PDF document text
    • https://s3.amazonaws.com/tinajabizoreguf/thematic_apperception_test_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/xezonijida/bootstrap_modal_form_example.pdfIn PDF document text
    • https://s3.amazonaws.com/lorugipopuxe/9893810205.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD60 5728 bytes
SHA-256: 33509ae665e62c613efd11fbc0172245c24921050a319b0077d49dc220deb01b
font_01_sfnt_off0000e0f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0F6 10116 bytes
SHA-256: 46c69b491ab5a8fdc639ecedbbf9da350ee06053deab0126928f2fc9460994c6

Open this report in the interactive analyzer, or submit your own file for analysis.