Malicious PDF — malware analysis report

Static analysis result for SHA-256 012d6928513a36a5…

MALICIOUS

PDF

77.3 KB Created: 2021-03-23 00:23:02 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3a14e884b4b63becb4b6ce5055af1f45 SHA-1: 515ba15235e17253e40ab47d1b7f10b44ff9cbea SHA-256: 012d6928513a36a5a583d6dfac311c6fb37a5610e20311627b42037109d13cb0
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that leads to a suspicious domain, identified by heuristics as potentially malicious and flagged by ML classifiers. The document body, though truncated and partially garbled, suggests a lure related to household appliance repair. The presence of embedded URLs and the overall detection by ClamAV and ML models indicate a phishing or malware distribution attempt, likely delivered as a spearphishing attachment.

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://jumiwimov.ru/strik?utm_term=how+to+remove+and+replace+a+badger+garbage+disposal
    • http://qwonder.space/newugigalubl0x1.pdf
    • http://kiparegazeratax.getenjoyment.net/kerapenej.pdf
    • http://useporte.xyz/free_printable_punctuation_worksheets_for_kindergartenv1sc6.pdf
    • https://cdn.sqhk.co/risubibasero/XfGkxZ8/48894802172.pdf
    • http://meetsoda.club/how_many_chapters_in_old_testamentcx21e.pdf
    • https://cdn.sqhk.co/vanewano/b4tjggc/buvofaditedov.pdf
    • https://cdn.sqhk.co/rolileduvof/cxhawHy/norixibupowub.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://ec8c99fd-5413-4e38-b6a0-2ccbba71fc6f.filesusr.com/ugd/de02f3_284f6664f2b74e1b88e68f9d1950ff08.pdf?index=true
    • http://bopisumeku.atwebpages.com/analog_signal_vs_digital_signal.pdf
    • https://s3.amazonaws.com/pibabopuduj/7_continents_world_map_worksheets.pdf
    • https://db532842-334f-4efb-8993-e67ec8f20ff5.filesusr.com/ugd/bc5be3_2b50c87c482b4018891620387fadf3d7.pdf?index=true
    • https://aefb6378-f3ca-470a-b9d2-22936542d087.filesusr.com/ugd/fe129c_ae7ae3d6fae741aabf9758b9ec265162.pdf?index=true
    • https://s3.amazonaws.com/golepe/4959524142.pdf
    • https://eb40363d-1d1f-4170-a897-f23f0f433116.filesusr.com/ugd/2a1429_1cdf6aa5f56e40d7a67986f1c7b590cd.pdf?index=true
    • https://uploads.strikinglycdn.com/files/01173eaa-9a8f-4f88-a360-7a497449e0a9/graphing_parabolas_in_standard_form_worksheet.pdf
    • https://b913155d-2712-4fd4-bcc6-651970a8c456.filesusr.com/ugd/e39924_51c12725478a4d0e82c555e49cc9a46c.pdf?index=true
    • https://uploads.strikinglycdn.com/files/6ca8d26f-8440-45bd-bb88-23ad7862eaee/sisegaveviji.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_off0000eeda.bin
81dd7bf86e8614f974301d7a83111c82483d9ee38123612269e0e793ae6ead8a
pdf-font-stream PDF embedded font (sfnt) at offset 0xEEDA 5648 bytes
font_01_sfnt_off00010206.bin
aaf2638856642bd28c94e716102c2fc965adfaf5062f66c3d4ee89ae04da36f8
pdf-font-stream PDF embedded font (sfnt) at offset 0x10206 11212 bytes