Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8ee9afe14931ba0…

MALICIOUS

PDF

61.3 KB Created: 2020-12-20 20:11:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 587da6fe3ac73859b59da3063e439149 SHA-1: aaecf7a02929a9d2dcd57634145c71371efe24de SHA-256: e8ee9afe14931ba0c5135387e1c44545cf0eb32f9c77bc9cbd0c8249794d5a1c
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 detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'traffset.ru', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains references to 'Asphalt 8 transfer' and 'wkhtmltopdf', suggesting a lure to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffset.ru/aws?utm_term=asphalt+8+transfer+from+android+to+ios PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369769/normal_5fb605166aee2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443588/normal_5fd8b28113d40.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/jotizifime/73358624214.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc28d360b6b03258f4005db/t/5fcbd4e19d29b56e4d0d632f/1607193825655/history_of_russian_revolution_trotsky.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/39316890-3673-4f2f-b235-111c9570de2b/50753433328.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/728c42ab-7cb5-4cf2-983f-9c8bfe4bd1bc/sikutupuro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/06ffa700-3769-4cfd-971b-034ed73de95a/mobikarixamezixajegono.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eba3d415-116c-42a3-8a8a-c465217e335e/anonymous_play_script.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1583bff13940aa242bd98/t/5fc3e73d3485235c863ea08c/1606674238108/sadobirowabol.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/df139f92-839b-44f1-a142-4fb2e0c8e78a/69393000347.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc5c9115e8e827d42af5a10/t/5fc800f9fbeb175295c615da/1606942969555/switch_lite_bundle_mario_kart.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fcebba1b44223045ec9a9d5/t/5fd02ae706d21916ed64220a/1607477992052/army_survival_handbook_offline_manual_guide_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72b7dc78-38ff-48d3-a37a-38ce135968ca/rusuj.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_off0000b218.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB218 5464 bytes
SHA-256: 014259ee501e8635f4eae7117a9c9b8e398db3afe63b26804cd1f6daf211a5d0
font_01_sfnt_off0000c47f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC47F 10584 bytes
SHA-256: 327b584b674c7023f5cf55e9ce6a2ea256903273a549cc4f35dc6d19fa220375

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