Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fc3c3717663ecbe…

MALICIOUS

PDF

81.4 KB Created: 2021-04-30 17:07:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 1c601730bb342544e1f9ffb49ee3a262 SHA-1: 2c1ceb7cb756d422aaaf89541ea35ffd3f4e6591 SHA-256: 2fc3c3717663ecbeb75e839ce2eb371adb0d8994658bfe8f98818def312ffdfe
116 Risk Score

Malware Insights

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

The file is detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains an embedded URL pointing to 'soxebez.ru', which is likely used to redirect the user to a malicious site. The heuristic 'SE_QR_LURE' suggests a QR code might have been present, further supporting a phishing or social engineering attack vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://soxebez.ru/strik?utm_term=cara+setting+camera+iphone+11+pro+max PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4405687/normal_602037d17a5f3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4385197/normal_5ff6992ccd4ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487918/normal_5ffd69a9887ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368219/normal_6020d07eb0846.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385011/normal_602f189911c50.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388181/normal_5ff14582f3834.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454287/normal_601f91e032339.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496389/normal_6035e76cd6726.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465393/normal_600c88061cec6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404124/normal_60218695038af.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392442/normal_5ff68ec3b5dc1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4504568/normal_602371e3c1c9a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371498/normal_5fee01340ea34.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499317/normal_604a96bb22124.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446646/normal_6028f5fa1bbc4.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/jimugivos/josajupedovatuvuzol.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/gipazipo.pdfIn PDF document text
    • https://s3.amazonaws.com/bepukuba/rajodutonobojetom.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/credit_exposure_report.pdfIn PDF document text
    • https://s3.amazonaws.com/rurovikejigibu/how_do_you_make_homemade_pizza_crust_crispy.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/96109224803.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/tigikexazexexisux.pdfIn PDF document text
    • https://s3.amazonaws.com/rujimidujek/68131699483.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f31a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF31A 3396 bytes
SHA-256: a79d71b8599c023a80ee39100fbf4e2e1f7b6555d56bd7a18aa469e02142d8cb
font_01_sfnt_off0000ff41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF41 5340 bytes
SHA-256: 2ec5dc87a4e421999c5e3f49767bfccf7f87ade530e7d434f191e95786521799
font_02_sfnt_off0001114e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1114E 11016 bytes
SHA-256: fe8a4ab540802883658ff1b195f2c64ad0ef6b0649bf5d8e8095ecd1d94527bc

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