Malicious PDF — malware analysis report

Static analysis result for SHA-256 64dead7c1e85e6db…

MALICIOUS

PDF

67.4 KB Created: 2021-01-05 20:40:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 331ca7c5ae138a4d88a4b415dff20923 SHA-1: 0c4675eafdbec318f67a7b5cad51c122ed5827da SHA-256: 64dead7c1e85e6db85070e7ff4c8d944c7e892ef8c6a09c4a17f922dcf6954cf
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL `https://traffnew.ru/123?utm_term=caesars+palace+property+map` is the primary indicator of a phishing or malware distribution attempt, disguised by the document's apparent content related to a 'Caesars palace property map'. No scripts were extracted, but the PDF structure and embedded URI are sufficient to infer a phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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/123?utm_term=caesars+palace+property+map PDF link annotation
    • https://jusopusoguwukul.weebly.com/uploads/1/3/4/4/134494455/2452487.pdfIn PDF document text
    • https://wumunelopilum.weebly.com/uploads/1/3/4/3/134395902/pesemufofikusom_kumixa.pdfIn PDF document text
    • https://vadurevagide.weebly.com/uploads/1/3/3/9/133999829/9475793.pdfIn PDF document text
    • https://vulodimov.weebly.com/uploads/1/3/4/8/134880101/xulemomesuz-jebox.pdfIn PDF document text
    • https://zodutobaziji.weebly.com/uploads/1/3/1/4/131408241/cf91ff0.pdfIn PDF document text
    • https://pareruli.weebly.com/uploads/1/3/4/8/134891857/28ebd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/7da690d8-a094-4ff6-8d81-2c43cac825b5/27140915889.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5666d43a-db0c-4677-b67e-469f23eaf3bd/first_conditional_worksheets.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/67aa8879-776e-4e78-9146-76b3469f10f1/expert_cooking_trainer_wow_vanilla.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a35490c4-2a0d-4d09-b1f9-6d5c6c148e60/92898380106.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_off0000bc84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC84 4840 bytes
SHA-256: 2a6d53ee51600085c3f764acbf0d4f5165bd6b9b398ce2ff27e47f359ae9fbd1
font_01_sfnt_off0000cd03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD03 10872 bytes
SHA-256: e1ac1b58b3b5fdba05b81bb6e144df115706b3c4d5bde8e81144d9a0e975618f
font_02_sfnt_off0000f163.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF163 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176