Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb1bd5dcf618175b…

MALICIOUS

PDF

61.3 KB Created: 2020-11-11 05:39:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5a63680bd6d519baeed8b51dbe93b642 SHA-1: 1a7cadd5de815f4182fbddf34c2e6d8e04967bb8 SHA-256: eb1bd5dcf618175b7fb3a71e8f0ddf845af2ee61307c1f02a6ebfc958f99afd4
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://trafftec.ru/aws?keyword=brother+p-touch+label+maker+manual+1950 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4418383/normal_5fa48f332178d.pdfIn PDF document text
    • https://fakimodixoto.weebly.com/uploads/1/3/0/7/130739088/ec1f0f3c347fa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374951/normal_5fa699efeb87e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368225/normal_5f8a60fa02288.pdfIn PDF document text
    • https://vezutubiwewo.weebly.com/uploads/1/3/4/5/134507618/lulilugofep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383149/normal_5f9e79419ec44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371814/normal_5f8a653732ecd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375073/normal_5fa5a03eb9c11.pdfIn PDF document text
    • https://daputonekamipit.weebly.com/uploads/1/3/0/7/130775603/bapeweser.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384299/normal_5f9b09aca556e.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/dowavelaxam/dmv_photo_center_dunmore_pa_hours.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/nupavifiledewulesuw.pdfIn PDF document text
    • https://s3.amazonaws.com/takeju/words_with_letters_ng.pdfIn PDF document text
    • https://s3.amazonaws.com/gupuso/ganorekugevedusobubaxi.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_off0000b31f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB31F 5756 bytes
SHA-256: 5f05f315f85b02481eb01234b323555d68cb39b970d56825d87a2dff96d3a259
font_01_sfnt_off0000c698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC698 10164 bytes
SHA-256: 600799eff4c94c7bc8d39d0dfd60789954623b5528f190aa6a369a1fd91ac4b2