Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f34415af645e1bc…

MALICIOUS

PDF

66.6 KB Created: 2020-11-30 06:49:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 64a483b3fec94998b914fb69cc9b6c87 SHA-1: 3fccaecdad4081e36329ea4b6ff43c10f3c401d6 SHA-256: 7f34415af645e1bc8ff498ef63fbc005f71ecf2fd3a902adf1baed20b004d9f7
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The file is a PDF document flagged as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to 'traffnew.ru', which is a strong indicator of phishing or malware distribution. The document body is heavily obfuscated, but the presence of the external URI and the high risk score suggest a malicious intent to redirect the user to a harmful site.

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=return+man+4 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4380858/normal_5f9a62cf9f4e9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417319/normal_5f99e909c9aa5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408720/normal_5f92ceead8dcf.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446944/normal_5fa7165cea978.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378155/normal_5fa86a7dd7e77.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413696/normal_5f9a29e9aad5a.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c0082f22-66e9-492b-bdd9-1083e4bbf4c7/norelco_shaver_heads_sh30.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3335bd75-893f-4900-8c33-1ff38cb3d4cd/verbos_formas_personales_y_impersona.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98823760-9507-449e-9906-f1b5b462e3ce/marejivuwurifipamokinad.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8595eb6e-b527-4bf1-aec3-b8849f49a0a1/79753928735.pdfIn PDF document text
    • https://s3.amazonaws.com/vaxebisapesi/makajipujimunudekagudi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3e9aafe4-8345-4ee7-910d-0c0a4685076a/luwifewivefegekitugum.pdfIn PDF document text
    • https://s3.amazonaws.com/wonoti/egyptian_arabic_course.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d60e09d8-8238-4549-be11-9f300b8bc172/things_fall_apart_study_guide_answer_key.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b98b3751-28dd-4e69-9d68-858eb2d6d59f/siwafavudojirutoleg.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_off0000ca10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA10 4716 bytes
SHA-256: 3221e4e1d455b84479dcaadc01ccb97fb82861216184732b377cd8562fc6f58d
font_01_sfnt_off0000d9ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD9FF 10520 bytes
SHA-256: c834ce030404d1710b57fd025ca641ea97cafc1ec64e7703aa8d2f9d8b5743bf

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