Malicious PDF — malware analysis report

Static analysis result for SHA-256 19e070fbbcf3c4ee…

MALICIOUS

PDF

84.6 KB Created: 2021-03-06 09:45:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 16c5729faf9c7d1da45e254a6b41c33f SHA-1: 9a682249e590499b11807816e9dfbc9792ad7c6c SHA-256: 19e070fbbcf3c4eec5d4b60c400aa55e81841014ca806cc9d5f954a97c226a2c
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URI pointing to a suspicious domain, identified by ClamAV as Pdf.Phishing.Trojan. The ML classifier also flagged this PDF as malicious. The document body, though heavily obfuscated, appears to be related to the URI's search query, suggesting a phishing or social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://soxebez.ru/wb?keyword=que%20es%20el%20autor%20corporativo%20en%20apa PDF link annotation
    • https://wasoxojeroxinab.weebly.com/uploads/1/3/4/8/134888233/safogagonidifa-jabipoxobes-sokes-lijad.pdfIn PDF document text
    • https://nidikibadut.weebly.com/uploads/1/3/1/4/131453007/c7f4163c.pdfIn PDF document text
    • https://funofumid.weebly.com/uploads/1/3/4/8/134886651/rizodikumid.pdfIn PDF document text
    • http://todayshop.website/how_to_get_usps_to_return_to_sendervpvxt.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377656/normal_60432fb322c18.pdfIn PDF document text
    • http://invitesistem.ru/directions_worksheetjqw20.pdfIn PDF document text
    • https://gomepenet.weebly.com/uploads/1/3/0/8/130874128/441404.pdfIn PDF document text
    • http://sojuvofud.22web.org/endnote_7_for_mac_free.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490377/normal_6019b94061a09.pdfIn PDF document text
    • http://vezalijoza.22web.org/little_candy_shop_font.pdfIn PDF document text
    • https://wovupidej.weebly.com/uploads/1/3/4/6/134687137/6560239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382420/normal_600fbd794f8b2.pdfIn PDF document text
    • http://godisibipuvam.22web.org/step_1_2020_dates.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4462732/normal_6030fd60e2ee9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393752/normal_6019afdd97da4.pdfIn PDF document text
    • http://mx50off.info/acronis_disk_director_12._5_isohug5d.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/tezude/47801659005.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/ladybird_fact_sheet.pdfIn PDF document text
    • http://bewefesa.epizy.com/how_to_draw_anime_hair_easy_girl.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/22365137107.pdfIn PDF document text
    • https://s3.amazonaws.com/lanubili/pavularol.pdfIn PDF document text
    • https://s3.amazonaws.com/nilafafakem/imagine_dragons_believer_virtual_piano_sheet.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_off0000fc11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC11 4932 bytes
SHA-256: 4bb4a9ee650d7fb695e97ba26ce4901be671b53a0d80485985736dcf410616c0
font_01_sfnt_off00010ce5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CE5 12124 bytes
SHA-256: 7c10a6135d989421d845e9e4159bfe39151bde0026ca85c6fb27f6f9164d0a1e
font_02_sfnt_off0001349b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1349B 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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