Malicious PDF — malware analysis report

Static analysis result for SHA-256 7912c13725baa3ff…

MALICIOUS

PDF

79.5 KB Created: 2021-03-23 02:01:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: a145175a6a73d9b3274e8ab07995fc0b SHA-1: 58cd79b914480eed5bc112cdedb3a9058fc03b2e SHA-256: 7912c13725baa3ffee7e617673baf0e26bca57eb85f78c3dbfa86ac017f491d9
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a lure related to 'T-fal deep fryer recipes'.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://resalured.ru/aws?utm_term=t-fal+deep+fryer+recipes PDF link annotation
    • http://sogejovep.mypressonline.com/firma_de_los_acuerdos_de_paz_en_guatemala.pdfIn PDF document text
    • http://palopej.sportsontheweb.net/wofukexirozulakepilu.pdfIn PDF document text
    • http://slmit.fun/51029559775ucfmi.pdfIn PDF document text
    • https://cdn.sqhk.co/mudemodox/XTewhgt/76214774327.pdfIn PDF document text
    • https://cdn.sqhk.co/wesuwajil/idDoc0B/sun_tzu_art_of_war_history.pdfIn PDF document text
    • http://womenita.fun/spark_plug_condition_guide4jtgh.pdfIn PDF document text
    • http://bibavovomid.22web.org/9099104358.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/gqWjfPz/gonosamawubise.pdfIn PDF document text
    • http://nesobaka3.xyz/wujubefuimn0k.pdfIn PDF document text
    • http://jarowulizose.sportsontheweb.net/converter_into_word_file.pdfIn PDF document text
    • https://cdn.sqhk.co/fogibadeku/hgEhcic/48692427674.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://regujag.rf.gd/mopewe.pdfIn PDF document text
    • https://s3.amazonaws.com/mokamoba/2011_malibu_thermostat_location.pdfIn PDF document text
    • http://lotijedopedo.epizy.com/best_lightweight_reader_linux.pdfIn PDF document text
    • https://s3.amazonaws.com/dukexajuj/mobog.pdfIn PDF document text
    • https://s3.amazonaws.com/wovitiku/ant_video_er_for_firefox_56.pdfIn PDF document text
    • https://8e8ef6ac-913c-489f-8395-c30730e7ba0a.filesusr.com/ugd/f39c52_d25260b4d9b942439ef9d4c8c6f85f9d.pdf?index=trueIn PDF document text
    • http://pudedenos.epizy.com/best_site_to_learn_guitar_for_beginners_free.pdfIn PDF document text
    • https://d17f4099-ecc1-42b1-9c73-51521793457c.filesusr.com/ugd/4a2613_eea3cf1cea7542d19cae725bfd972bf8.pdf?index=trueIn PDF document text
    • https://d90bda3b-35dd-409f-9d4b-b4a00d881a52.filesusr.com/ugd/b88e3d_1b332b6741f9490c8fe1f5e09abb258a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/loregit.pdfIn PDF document text
    • https://c69a8150-bb1e-4c46-878b-fc1622391bd7.filesusr.com/ugd/cf91d6_52d0fabce24b48e09a527f7361549c14.pdf?index=trueIn PDF document text
    • http://pedamodaw.onlinewebshop.net/18613782005.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/drug_and_alcohol_policy_template_qld.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_off0000fa08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA08 5232 bytes
SHA-256: 5f9ec7c8fb7c138f65b3f3041b3ef487c429a8022449f72d424b85776680312b
font_01_sfnt_off00010bf7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BF7 10896 bytes
SHA-256: 53d914b3dbc8a37e695c5a8f653b12774c2a22d45213db99cd4731fa47c724d3

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