Malicious PDF — malware analysis report

Static analysis result for SHA-256 00d8a8572977859d…

MALICIOUS

PDF

73.0 KB Created: 2020-12-19 05:39:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ac401247222f163063eeff643a949a31 SHA-1: 5aafc3a8655ed5b7a8f6a17ac19335b69a58389d SHA-256: 00d8a8572977859ddfe8ff9e1646bf100ba8fc25b73492eae1cf333e8be96c2a
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, trafffi.ru, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to 'prophetic words for 2020'. The presence of PDF-specific heuristics and a high ML classifier score further indicate malicious intent, likely for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/123?utm_term=elijah+list+prophetic+words+for+2020
    • https://static.s123-cdn-static.com/uploads/4416327/normal_5fcf270a82b9b.pdf
    • https://cdn-cms.f-static.net/uploads/4379984/normal_5fd61dabd37bd.pdf
    • https://cdn-cms.f-static.net/uploads/4409840/normal_5fd2d2265b500.pdf
    • https://cdn-cms.f-static.net/uploads/4370078/normal_5f8d857fbfbe0.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bulujono/rumupagomivem.pdf
    • https://uploads.strikinglycdn.com/files/52581e4a-cd63-45c3-a4c1-20d62e3032af/mewedof.pdf
    • https://uploads.strikinglycdn.com/files/02033434-40d6-429d-9381-dbff861320a1/51116961202.pdf
    • https://uploads.strikinglycdn.com/files/19b6ff76-4fa4-4e3e-b8c3-49453e312e21/brown_eyed_girl_sheet_music.pdf
    • https://uploads.strikinglycdn.com/files/f98490c8-8cbc-498b-950a-c52f9a067021/1308886991.pdf
    • https://uploads.strikinglycdn.com/files/ec746ba9-b44c-4ee1-bfd9-c0cfb2ba3d2f/32207529906.pdf
    • https://uploads.strikinglycdn.com/files/f9a5abaf-0de7-4368-a728-1bec5fd94ad4/depth_map_from_stereo_images.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_off0000db88.bin
a7df0edd95900cbb954cd1d91d04f25d990739b791da0d240a51ab4f6e9fe5b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDB88 5640 bytes
font_01_sfnt_off0000eed2.bin
8f3936475a36b3d4679c74e6670b1377aec6cb3c1e9919e8ba60d8cfef64629e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEED2 11384 bytes

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