Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bb1e7894de95ae4…

MALICIOUS

PDF

74.7 KB Created: 2021-03-01 00:11:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: 28f0658b94d8cdc045e752d0ba6a410b SHA-1: 41987882b1b54152d36c9d927a60d46361e310b7 SHA-256: 2bb1e7894de95ae402af8b88d2a6265b72c267b8bade0cc27a54c8653bc63662
96 Risk Score

Malware Insights

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

This PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, likely intended to host a malicious payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text that appears to be a lure related to 'Pimp quotes iceberg slim'.

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://midufefew.ru/strik?utm_term=pimp+quotes+iceberg+slim PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4473947/normal_602df2a51c880.pdfIn PDF document text
    • http://palaxofivuleduj.medianewsonline.com/75885896444.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409096/normal_5fcdd0584115b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411001/normal_5ffec1f9a1a72.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463272/normal_6021234d8698a.pdfIn PDF document text
    • http://kixurox.getenjoyment.net/how_to_change_battery_in_clicker_garage_door_opener.pdfIn PDF document text
    • http://electrumwallet.buzz/common_roadside_shrubs_in_singapore67zvo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_601230ca08f7e.pdfIn PDF document text
    • https://cdn.sqhk.co/bebetirifam/Qjjhdib/1620887178.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/kibavutibeved/boss_boss_boss_song.pdfIn PDF document text
    • https://s3.amazonaws.com/nitatotol/51347738380.pdfIn PDF document text
    • https://s3.amazonaws.com/dovulavavo/64609310180.pdfIn PDF document text
    • http://kofaxafogi.myartsonline.com/zenoteluka.pdfIn PDF document text
    • https://s3.amazonaws.com/paxivogedewilu/appraisal_report_traduction_francais.pdfIn PDF document text
    • https://s3.amazonaws.com/kavugusepe/frozen_2_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/begijufadi/xugitokowovo.pdfIn PDF document text
    • https://s3.amazonaws.com/zonebon/xezoxiwiwaxokepaviweb.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000da41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA41 5084 bytes
SHA-256: 77ec6e6d9ab3986e32e06ea1f78665049cd7632b74d3fe31d6c2f67e1306371f
font_01_sfnt_off0000eb8d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB8D 10572 bytes
SHA-256: 68fc603df1c98aea75c0ddbe36e7c9793ccb8e690b7b1df5ee11b1bf3d6a9061
font_02_sfnt_off00010f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F69 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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