Malicious PDF — malware analysis report

Static analysis result for SHA-256 625259b79f4a1808…

MALICIOUS

PDF

67.5 KB Created: 2020-12-17 16:58:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b22e6eb0d0599dfa9e062be4b1b6fb5a SHA-1: 497a1678f425b6ff5e79081c517d47c04e7e1b89 SHA-256: 625259b79f4a18084f9a417356edd81626a3ccda730a862ffa8b0e11b582207c
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, specifically identified as a phishing trojan. It contains an embedded URI pointing to 'trafffi.ru', which is likely a phishing domain. The document body, though heavily obfuscated, contains text related to 'Parable of the talents' and the authoring application 'wkhtmltopdf', suggesting a lure to a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://trafffi.ru/strik?utm_term=parable+of+the+talents+pdf
    • https://static.s123-cdn-static.com/uploads/4472475/normal_5fcda425dbbff.pdf
    • https://cdn-cms.f-static.net/uploads/4451368/normal_5fad2d8e6010c.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://static1.squarespace.com/static/5fc556e688c99b6d37c4d50e/t/5fcaf94dda45e86cca9ad4e4/1607137619928/herpes_simplex_keratitis_treatment_valacyclovir.pdf
    • https://static1.squarespace.com/static/5fce915b35a0cc373f931ede/t/5fd14b0ca34a607c16b5f4ae/1607551757629/minecraft_color_chat_text.pdf
    • https://static1.squarespace.com/static/5fc4c9c0abaecd33183b2183/t/5fc6a739f8cdb769c6ce91c9/1606854458026/squishy_business_apk.pdf
    • https://s3.amazonaws.com/wonoti/rewugewesuzutelatufipero.pdf
    • https://s3.amazonaws.com/dutuzanob/kosugokepokiwupupepemavud.pdf
    • https://s3.amazonaws.com/fobupojowojon/brinzolamida_bula.pdf
    • https://static1.squarespace.com/static/5fc11101d26ff1194f749d44/t/5fcb740e36758319a5532490/1607169039552/soccer_24_live_score_apk.pdf
    • https://uploads.strikinglycdn.com/files/3e7d703f-54e9-4f2f-95f3-84faeb82f27d/66521670279.pdf
    • https://s3.amazonaws.com/sowirutelevolur/xejivixik.pdf
    • https://static1.squarespace.com/static/5fc777e0778af068263eac13/t/5fd08c175ec17a4c6693da0f/1607502872674/final_goal_of_buddhism.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_off0000cd1e.bin
c3b03c0e5fd4a74f3c915c6a9fff8490c12cae959092b56d6fdb1214f4ce6106		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCD1E 5268 bytes
font_01_sfnt_off0000def6.bin
c905a9a2135472c20da294eed0169860effcdc83b3bc2c01d2ff41b8ec9bed6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDEF6 10076 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.