Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2fe3e86c278b04f…

MALICIOUS

PDF

76.3 KB Created: 2020-11-30 08:24:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 8d792d0fff77ec58f460cddf3a73215d SHA-1: b8e646140c679cf3b6b055cdfaf7a09448bd152c SHA-256: a2fe3e86c278b04f4f0e9c6b74ddfaf3eb9501d4f19a7a959f8faf423f729368
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that is used in a phishing lure related to a "PS4 code generator". The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. While no scripts were directly extracted, the presence of an external URI and the nature of the lure suggest it is designed to trick users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://traffnew.ru/123?utm_term=ps4+code+generator+that+actually+works PDF link annotation
    • https://vodemilofokuse.weebly.com/uploads/1/3/4/2/134235674/1022143.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4401712/normal_5fa2b7bf91d83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380384/normal_5f8b3ecb939dc.pdfIn PDF document text
    • https://pudefita.weebly.com/uploads/1/3/4/4/134476078/c59d8b1a35c0.pdfIn PDF document text
    • https://pakezumada.weebly.com/uploads/1/3/4/3/134368128/1112171.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/zugutixe/maps_for_minecraft_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/pujinit/38224927540.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/sadadewosowopejomu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f3a9efc7-303b-4338-af74-6a3579ac6032/69969410853.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/pudigawukasoxokigas.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/202063d0-06d8-4088-818f-5c98da9a9ccc/kenmore_elite_front_load_dryer_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zifilobesumafi/68606242700.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_off0000ebfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBFA 5548 bytes
SHA-256: 17dfbad02341af94d599da7adaed763466e2534a804136de5de9c57d8db6792a
font_01_sfnt_off0000fef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEF2 10884 bytes
SHA-256: 9f2600dfe7f89a54f36c80593a16702b87fe09b2e733a4adc26a066249c0f28c