Malicious PDF — malware analysis report

Static analysis result for SHA-256 045645f6dde93ff9…

MALICIOUS

PDF

63.1 KB Created: 2020-12-29 14:30:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 684f2b129c603d17a1a2f5f3d31aba51 SHA-1: 67bfe3e45f4f5a2fbce2290b683bcfa0488fe82f SHA-256: 045645f6dde93ff9e34c2f2406c93586f868adc97534e0b631e7e82266b0dbac
96 Risk Score

Malware Insights

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

The PDF file contains a lure related to a 'Middleton fire department raffle' and embeds a suspicious URL. ClamAV and ML classifiers strongly indicate maliciousness, classifying it as a phishing trojan. The embedded URL is the primary indicator of a potential 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://trafficel.ru/123?utm_term=middleton+fire+department+raffle PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392441/normal_5f9b42edf079e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379961/normal_5fe12abc29c0e.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/11c503f5-f3a4-4bcd-b605-9f96605c9c68/capitalismo_solidario_libro.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5e4ac9a-5093-4edd-8b52-c91bf9c79a1b/dowotage.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3f70fa48-b213-4de9-9608-e061c8dc38ec/man_gets_cut_in_half_by_truck.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46e9f7f1-f98c-4a86-a0e5-c4617bc23e9a/rudaferegi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/54212f19-4ac4-466e-97c0-726c6d5a45fb/zerilutexavipuzi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e8159c3-400d-4953-81e6-bed541ac909a/kixigolatisula.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/503bbd6c-5141-4023-a016-3188bf59c2e8/bapisubagivelaboguti.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7bd02360-afa3-4c99-8b6e-86f9358c58ee/bumufugenola.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/439e3458-74d9-42aa-af49-ef6ac5bea6d5/50204690840.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8b97cad-8347-4099-909d-3af274dd645b/72939583932.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a57efd24-1783-4ef9-84c5-263a8ad7100e/grendel_zodiac_signs.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/53b9c6c6-bd34-4fb4-9304-1562c58ea3cc/fefukaxowum.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_off0000bbee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBBEE 5012 bytes
SHA-256: 6a8429e69ba7c8dfff5541cdc6c2d243c08733dc323553a75d5482c651ff294a
font_01_sfnt_off0000ccef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCEF 10160 bytes
SHA-256: 40af0a9da0572933f2ec46bf1707f924540f12260b70901e602b6dba0565bd31

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