Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa64e71860c654fd…

MALICIOUS

PDF

63.6 KB Created: 2020-11-19 15:51:07 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-31
MD5: 6b0ec4aed6b67ba783205356e7409fe6 SHA-1: 1dc3000b1b1909a5f6b0704eed6ef72905623ae6 SHA-256: fa64e71860c654fd2ec3199e7e43c8d44ec37722928e4d22860ab83a80b26110
96 Risk Score

Malware Insights

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

This 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/aws?utm_term=sqlite+manager+firefox', which is likely part of a phishing or malware distribution scheme. The document body is heavily obfuscated, preventing a clear understanding of its specific lure, but the presence of the external URI suggests an attempt to redirect the user to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://trafficel.ru/aws?utm_term=sqlite+manager+firefox PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366360/normal_5f9813fddcc94.pdfIn PDF document text
    • https://manukigobedor.weebly.com/uploads/1/3/4/4/134481395/5649239.pdfIn PDF document text
    • https://moxitasa.weebly.com/uploads/1/3/1/4/131454719/pijavo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4394060/normal_5fa3bb1781aac.pdfIn PDF document text
    • https://kofovozeregom.weebly.com/uploads/1/3/4/3/134313602/ed9d5006a9e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367925/normal_5f8c24116e00e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380530/normal_5fa4a6ccc8733.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/a0e9f91a-4acf-43c5-bb6c-8f6dcf163e23/titifewovuwazitujoseka.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0063e43f-8b9f-4134-8d0e-e1a34cc0c52a/jules-_eugne_legris.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70a209f3-9e5e-4af1-8f3d-270890c61315/16930358675.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0cd24992-8e3a-40c3-8aa9-7dcaeeef6416/nadusazidiligerini.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e476fcb5-195f-47c3-afc0-275ac5f91c80/examen_segundo_grado_bloque_1_2017.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/98b85979-ed28-4cca-bfb2-45b4f035d408/11873910825.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/48432c05-9d13-4730-9abe-9da1577ae744/mgk_bloom_download.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_off0000bd08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBD08 5208 bytes
SHA-256: 1baf642cf4a496be9ccac8eba93d3e58f64c1b11a3256d2a4fa1f70751d51930
font_01_sfnt_off0000cead.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEAD 10368 bytes
SHA-256: 281280ff656c8c84dc1a18de25455cb7e8af6e8bed9c627fa1ef6668981394e6

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