Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bed9a3319b4eb0a…

MALICIOUS

PDF

79.0 KB Created: 2021-02-24 18:08:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-29
MD5: a647b58619ec52a259b103250ac524c7 SHA-1: 273213e707055c6b972b832d5e9d60d3e2c8bac8 SHA-256: 1bed9a3319b4eb0a0333246c5be34c0d5f697f91b538e1ccb2f810e96d484044
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URL pointing to 'jottigo.ru', which is likely used to host or redirect to a malicious payload. The document body, though heavily obfuscated, suggests a lure related to 'Photoshop tutorials for beginners in urdu', aligning with a phishing or social engineering attack pattern.

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://jottigo.ru/strik?utm_term=photoshop+tutorials+for+beginners+in+urdu PDF link annotation
    • https://winomumamo.weebly.com/uploads/1/3/1/0/131070375/fodukijasiz_xedowo_punidezelelazek.pdfIn PDF document text
    • http://loduwij.scienceontheweb.net/words_their_way_assessment_paper.pdfIn PDF document text
    • http://wijasagasipode.getenjoyment.net/how_do_i_reset_my_idylis_air_purifier.pdfIn PDF document text
    • https://cdn.sqhk.co/lewiwifo/awfRx8w/kick_the_buddy_pc_download.pdfIn PDF document text
    • http://jadogaxarabu.mygamesonline.org/tafibenovopozire.pdfIn PDF document text
    • http://figimumagoko.mygamesonline.org/turn_off_stability_control_jeep_jk.pdfIn PDF document text
    • http://lixorajepidil.mygamesonline.org/mit_computer_science_reading_list.pdfIn PDF document text
    • https://cdn.sqhk.co/gawukale/Bidiija/hello_body_ambassador_uk.pdfIn PDF document text
    • https://xesevurodat.weebly.com/uploads/1/3/0/9/130968943/644603.pdfIn PDF document text
    • http://jaxagogilexet.sportsontheweb.net/listening_comprehension_activities_for_6th_grade.pdfIn PDF document text
    • https://wijuzibodeba.weebly.com/uploads/1/3/0/7/130738798/ca1aff9a8.pdfIn PDF document text
    • https://naluzakagowu.weebly.com/uploads/1/3/1/4/131411806/511a12bb.pdfIn PDF document text
    • https://mugapasuxow.weebly.com/uploads/1/3/1/4/131437627/webadezejabula.pdfIn PDF document text
    • https://cdn.sqhk.co/lafugafeniki/eqiiHia/15485371540.pdfIn PDF document text
    • https://zowobisa.weebly.com/uploads/1/3/5/3/135313501/de99a1cc4a3990.pdfIn PDF document text
    • https://vojosapixetogal.weebly.com/uploads/1/3/4/7/134770394/lesitivena.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/loneminovu/vectors_vs_scalars_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/dowadotiju/peep_show_johnson_spreadsheets.pdfIn PDF document text
    • https://s3.amazonaws.com/bulozor/kingdom_hearts_2._8_orichalcum_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/73304635406.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_off0000f726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF726 5444 bytes
SHA-256: f01631c2cf658f327aa3d8654c9fefff0dcf3021936f8790526b856e14a850fb
font_01_sfnt_off000109a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109A0 10792 bytes
SHA-256: 8bf97bed1893942f9737f75cefcac4633e9c408f6116a96ed9f3a38c142769d7

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