Malicious PDF — malware analysis report

Static analysis result for SHA-256 aba8318ec13a976f…

MALICIOUS

PDF

74.7 KB Created: 2020-12-30 03:14:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 9ec1f8e1b9100ba31896992720860fbc SHA-1: 995d1fb804ea6a2b4060e32b5efa990a310d4363 SHA-256: aba8318ec13a976fbc0fe695294671cfe3b23e20d34f73f1969fe758c20caf9a
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://trafficel.ru/123?utm_term=chased+by+dinosaurs+vimeo', which is likely used to redirect the user to a phishing or malware hosting site. No scripts were extracted, but the presence of the external URI suggests a phishing or download 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=chased+by+dinosaurs+vimeo PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4376609/normal_5fa57f356e7ff.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/d5216c85-1a6a-41fb-97fc-4d8ee71dc392/friday_the_13th_killer_puzzle_daily_death_today.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/pizarakoxir.pdfIn PDF document text
    • https://s3.amazonaws.com/bezutu/jejivipanowulive.pdfIn PDF document text
    • https://s3.amazonaws.com/purixifusipelid/17678206870.pdfIn PDF document text
    • https://s3.amazonaws.com/fukepez/97554091250.pdfIn PDF document text
    • https://s3.amazonaws.com/pojojagajevuxa/betalopogejekifitodikofu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cab2466-8a2d-41e2-bc00-cffb600bc202/44666065549.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a626c34-473a-4ee8-8ea1-beeb7091b972/toro_1800_power_curve_electric_snowblower_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/farefasejikap/vegisakujujite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50dd26c7-eb73-4516-98dc-5e7676d1aba2/deuter_kid_comfort_ii_used.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_off0000e64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64C 5240 bytes
SHA-256: 8ad933d41ac55b0177ca5cdf4852dbaf46733c9bd511ca2b780deb58fcf393f4
font_01_sfnt_off0000f7f2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7F2 11372 bytes
SHA-256: 41ccbe2535c932c55e88857482f9363f6db22812eaae93bbbeaa84d6fefc46fa