Malicious PDF — malware analysis report

Static analysis result for SHA-256 64b9e5573a3023a4…

MALICIOUS

PDF

75.5 KB Created: 2021-03-23 04:46:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: efa368dcdf4bc7b540eefa0ad2cfc326 SHA-1: 8d9ef2f3f9fb67d339d08a6c3f283f061ee8926a SHA-256: 64b9e5573a3023a41470e56d0f39403a48588142a2c3f5839c58b34da0116263
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 URL disguised as a Ceridian time clock user manual. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. The embedded URL is the primary indicator of compromise, suggesting the document is a lure to a malicious site.

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://baarspo.ru/wix?keyword=ceridian+time+clock+user+manual PDF link annotation
    • https://cdn.sqhk.co/kifuzopeko/jdS1shj/kawojowazatejuvogelafub.pdfIn PDF document text
    • https://cdn.sqhk.co/kigimijexap/ia3pTkf/puxegijekufux.pdfIn PDF document text
    • https://cdn.sqhk.co/sanojuxako/HNLbagg/89632664881.pdfIn PDF document text
    • https://cdn.sqhk.co/libobivole/BogjLa7/okay_gif_meme.pdfIn PDF document text
    • https://cdn.sqhk.co/maxanogefo/ciaifhe/18782863554.pdfIn PDF document text
    • https://cdn.sqhk.co/vovewotutal/jgjgjej/h_and_m_home_pillows.pdfIn PDF document text
    • https://cdn.sqhk.co/pigexebobe/eifidSy/injustice_2_mobile_link_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/pufuxogife/ahcMLgf/20975607143.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471238/normal_5fcee8de14e1a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4505820/normal_605868e9aa84d.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/ifGM6hi/lusizatimog.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444630/normal_603f47c76d2de.pdfIn PDF document text
    • https://cdn.sqhk.co/sowanigog/Yjbn2hj/whack_the_devil_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/pazaxefuma/jwahfSH/bitenurime.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a773fd06-b368-4dc7-a0fc-b0b4219c1923/fusobunupuwasup.pdfIn PDF document text
    • https://s3.amazonaws.com/lebaxa/can_you_use_a_non_verizon_router_with_fios.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd4d1914-655c-42b0-b5f7-451e94f3d314/ron_paulk_workbench_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/recent_ielts_writing_topics_academic_with_answers.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_off0000eda5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA5 5052 bytes
SHA-256: e0377e9a7c9c1fc6dcc7117fedbf9e7423c9c0948f56f57dc3da0b4aefecd1c3
font_01_sfnt_off0000feb5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFEB5 10084 bytes
SHA-256: 948ceda6689d95aaf05c1ee6a67410e05073434e05556571dc7fc6650ffca335

Open this report in the interactive analyzer, or submit your own file for analysis.