Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ab48ad9e82221d6…

MALICIOUS

PDF

70.6 KB Created: 2020-12-02 14:52:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8f5bc3bb5d0f580c80e1b688a359c4c5 SHA-1: a3abb98024cfff37b4a379fd4bf5f833cf3ecdae SHA-256: 8ab48ad9e82221d60260842360d6bf68517d72bd94e1ee6a4c16314caf5cef52
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 ClamAV as Pdf.Phishing.Trojan and a machine learning classifier indicated a high probability of maliciousness. An external URI, https://trafftec.ru/aws?utm_term=my+talking+tom+3+apkpure, was found embedded within the document, suggesting it is used to redirect the user to a malicious site. The document body contains garbled text, but the presence of the URL and the heuristic firings strongly indicate a phishing or malware distribution 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://trafftec.ru/aws?utm_term=my+talking+tom+3+apkpure PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366005/normal_5f86f82669236.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/juzalizuvar/macy_s_employee_connection_login.pdfIn PDF document text
    • https://s3.amazonaws.com/pevuwarobuvowa/adaptability_test_question.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/41460d66-aae4-46ad-8fe4-16022a563a36/harvest_moon_light_of_hope_blue_feather.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95bf941b-cc81-44eb-a89f-8a3cc481b544/informal_and_formal_writing_activities.pdfIn PDF document text
    • https://s3.amazonaws.com/tokit/jimigar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa19f99f-3b93-4e87-92d7-ce5313cc18f8/xerilaxorewadij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ebef72f-d89f-429b-9f92-9ef47cfc8e89/zogupove.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7013b14-9534-4500-9630-988f741c192a/56017194954.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwamoxamo/fapufumulolawabijinugibi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/adcf627a-893d-4625-8f0d-52e672dc54f7/hughes_optioneering_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba2d3b7b-1e43-4e7e-b0e7-019b31b31da0/43122504590.pdfIn PDF document text
    • https://s3.amazonaws.com/guwutivupudutu/fox_chapel_school_district_calendar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5a2be072-aaa5-430c-be86-f280af15353d/togaboxoke.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_off0000c3e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3E0 5296 bytes
SHA-256: b9147b8e04b6b395f519fffc1cade444ca3ec5e33c137673896a87974cb6fc2e
font_01_sfnt_off0000d5e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5E7 2644 bytes
SHA-256: 9fdfa3bc0dd5590a98b49199dcd17670b3eab73dfc8bbc5b81ad18c763044887
font_02_sfnt_off0000e169.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE169 14088 bytes
SHA-256: a6dd3c1f62e4e2c3e968228afa2652bd1029364b8551e10d44ee58d24a7a9247

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