Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bae8e87ff36b7c9…

MALICIOUS

PDF

68.0 KB Created: 2020-11-17 03:56:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: f99c9daf8f9ca9b5bc74566ef272dac0 SHA-1: 05f5be233707f4e25890a2b63cd72d08d737de06 SHA-256: 7bae8e87ff36b7c92b6d0a47be8944331b9fc9f445e84a25b8ec7595f0b62160
96 Risk Score

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 'traffking.ru', likely a phishing or malware distribution site. The document body is heavily obfuscated, suggesting an attempt to hide its true purpose, which is likely to redirect users to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://traffking.ru/123?utm_term=manual+de+camara+canon+eos+rebel+xt+en+espa%25C3%25B1ol PDF link annotation
    • https://luweregovim.weebly.com/uploads/1/3/4/6/134661757/razonoz_duwuvilorol_ziwonoson_tarasufanar.pdfIn PDF document text
    • https://nizomepovunamox.weebly.com/uploads/1/3/4/3/134305669/mepovef.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/608fd5e2-08fc-4d80-9b13-d053bcde5fef/75259437968.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de778519-96a8-4602-81d4-5daebff1cb95/71851405245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5ece346b-0ea4-4775-9709-9224223d73b4/fosotizijevaduti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8347632-1fce-491c-a8a5-3d95286819ca/mabowenesavetoz.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bc29b3eb-1d1e-42ec-84f5-2c423a70a0bc/xugezufilaw.pdfIn PDF document text
    • https://s3.amazonaws.com/xakusineba/civ_6_gathering_storm_eleanor_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b6311033-94ad-431a-8b94-3b604bc90261/jelenonuvibekexodafu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee0b4f9e-8369-4654-ac8e-888b62b4a7f9/att_center_concert_seating_chart_with_rows.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_off0000c9af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9AF 5644 bytes
SHA-256: c0620adccc8f9089d780575277379ff89ff34c5f5d65c1db4d9cc677980a3c5f
font_01_sfnt_off0000dc91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC91 10552 bytes
SHA-256: c6d7a0f3ccab97dd66f3fc437b9e65816a10a0ec6dbdd1a11555c4af254a26bf