Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a0ba4e65afcaa32…

MALICIOUS

PDF

72.5 KB Created: 2020-12-15 00:51:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0cde946876b173457f071d84fbdbfa7e SHA-1: 7a440ddbc60ec6a2e3185ce118998ebb14f594b1 SHA-256: 6a0ba4e65afcaa329c0a87261ab0769115c7d94790ecc08d60620b1ba07fb517
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. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to a product manual, aligning with common social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=chamberlain+power+drive+gpd80+manual
    • https://tasototunone.weebly.com/uploads/1/3/4/7/134755659/dowibawer_xoxagud.pdf
    • https://revugegan.weebly.com/uploads/1/3/4/6/134682990/6e124e6.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/3fbeb5d2-fa05-462f-9cea-d60224a75605/marotefabosazagimoz.pdf
    • https://s3.amazonaws.com/nelizenejakarug/tricep_press_machine_form.pdf
    • https://s3.amazonaws.com/kavitokolezub/20084615406.pdf
    • https://s3.amazonaws.com/tetofamuxulil/skinner_street_school_gillingham_ofsted_report.pdf
    • https://s3.amazonaws.com/lanaladu/64232613116.pdf
    • https://uploads.strikinglycdn.com/files/8e848aa0-ca16-4287-9767-014ef3ea0218/wadefotaviluta.pdf
    • https://s3.amazonaws.com/tesapibebujep/bewupawoxatireku.pdf
    • https://s3.amazonaws.com/viromibukoleliw/spirit_airlines_headquarters_contact_information.pdf
    • https://s3.amazonaws.com/gozilum/jaws_sheet_music_violin.pdf
    • https://uploads.strikinglycdn.com/files/d9232d44-ec1f-4913-9725-eb5b42cc5cb2/purorupitonigofoz.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcb8.bin
4912121df917af760414806ae591606e57553101bbd5cda04d2d5978484528ac		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDCB8 5728 bytes
font_01_sfnt_off0000f012.bin
cd1bf1b7d65849752fbe18449ab801137ab89ea369b92e1b79a3990d9a5b3690		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF012 10932 bytes

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