Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba9e5450f71dc6c…

MALICIOUS

PDF

69.0 KB Created: 2020-11-13 15:03:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-14
MD5: 2c39e8be8e91f6e27ba511ed8aa787a0 SHA-1: e52994e24bae3b6a0f8c0dc57a58cffc75323fa2 SHA-256: aba9e5450f71dc6c4bfa457d018f6e08bb46a6015ad52a78a2e593c3ff34c90b
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that leads to a suspicious domain, likely intended to trick the user into visiting a malicious site. While no scripts were directly extracted, the PDF structure and embedded URI suggest a phishing attempt.

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://trafficel.ru/123?utm_term=the+answer+persona+3+portable PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb466fef-0915-4dec-93d9-f19284a4a1de/63128001730.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b2a2a65-9544-4a4b-bdf7-1d3ea0dd3875/nudeduliwubaboguwi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8f530fc-fc8c-47ba-8a9c-c33d8ac19da3/falumojetezixetuxukolel.pdfIn PDF document text
    • https://s3.amazonaws.com/gafedupeba/tarakofozozaroxirof.pdfIn PDF document text
    • https://s3.amazonaws.com/tirimofufemukat/claim_evidence_reasoning_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/xojafemori/cheap_toy_drift_cars.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/present_tense_and_past_tense_list.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46121cff-ffba-4e30-9c6e-a72b34f6824d/kibinedebidezasamijugojoj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be8faad5-106f-4c80-9966-07e72b834c9c/wetibuxiv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f35f4a38-3c1b-44d3-9e59-23cb708b8914/viponufigu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f6c0cd54-80ca-4ec8-9936-66689f7f4f25/81971347831.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6f38ed4-d200-424f-966d-b6e996ae4eb0/peso_aparente_formula.pdfIn PDF document text
    • https://s3.amazonaws.com/vavebufevodutob/cen_tech_63043_battery_charger_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/470e0e5a-4d19-4848-bb8b-3f7d8cce010b/limos.pdfIn PDF document text
    • https://s3.amazonaws.com/xamibudasagas/pejonuvuta.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_off0000d1f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F3 5252 bytes
SHA-256: 1ce6f1282245767f57a6c074f26214fe279617cd54e0a736c94f05271c002d22
font_01_sfnt_off0000e3d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D6 10384 bytes
SHA-256: 97344ad67bbb523be7056b7f0d50d22512083de5eceec968c1f74e1b6b101d52

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