Malicious PDF — malware analysis report

Static analysis result for SHA-256 dedb7ff8416c91bc…

MALICIOUS

PDF

61.5 KB Created: 2020-11-24 03:38:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 6877e4a4bc54df1446a9f2cc70332033 SHA-1: 1f1997f3e0ff27fc4d11a59b991a53dc7410a1e3 SHA-256: dedb7ff8416c91bca3f19050e5bcc3eba65fb476c266f1678bfa147453facc83
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The embedded URL 'https://traffnew.ru/aws?utm_term=descargar+purble+place+android' suggests a phishing or social engineering lure, attempting to trick users into downloading software. While no scripts were explicitly extracted, the PDF structure and the presence of external URIs are indicative of malicious activity, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/aws?utm_term=descargar+purble+place+android PDF link annotation
    • https://bizetuxerupa.weebly.com/uploads/1/3/0/8/130873791/kegevegizufifim.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371495/normal_5fad975cf3b8b.pdfIn PDF document text
    • https://zimiduninu.weebly.com/uploads/1/3/1/6/131637103/3511852.pdfIn PDF document text
    • https://xubuvene.weebly.com/uploads/1/3/1/3/131380433/927280.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368735/normal_5fb495a902e75.pdfIn PDF document text
    • https://wawukonuxoni.weebly.com/uploads/1/3/4/0/134095992/b5fb90280b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472764/normal_5fa8ef811bf66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454054/normal_5fa7b23c0d896.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412757/normal_5fb3344a16458.pdfIn PDF document text
    • https://razixolinatu.weebly.com/uploads/1/3/4/3/134384461/levaw.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/e6f27f5b-7c45-43d0-8fd6-0ef4dc760eb8/88143419018.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c1eacdb5-fcc1-494e-94c7-ed43c1af82f0/90032501274.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/078e57dd-810c-439e-9519-1e4c6956444c/ridixibamadogagopezi.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_off0000b5f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB5F2 5380 bytes
SHA-256: e08e0bd3b488c56e8a3170584e8c72dca510b006301da746ea1ce9588c8a67e9
font_01_sfnt_off0000c847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC847 9824 bytes
SHA-256: 0b03cf81fe3626f69bc954b5f04ba86644b2ee57f439421753216323c6efe5e6