Malicious PDF — malware analysis report

Static analysis result for SHA-256 984055df3242538d…

MALICIOUS

PDF

61.9 KB Created: 2020-12-16 21:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bd4a829f1ed851c2fc3973a09fddd604 SHA-1: db477a788cd0711b16af9e8ae35e1d58b103e19f SHA-256: 984055df3242538d79283e8255fd857e148b1297d5e2f2dabd48589ec66b4ab6
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/strik?utm_term=acid+factory+unblocked PDF link annotation
    • https://goraworozegisu.weebly.com/uploads/1/3/4/3/134324811/9219303.pdfIn PDF document text
    • https://fupexorugukemig.weebly.com/uploads/1/3/0/8/130814763/kidimapenalolo.pdfIn PDF document text
    • https://jowovodepavilim.weebly.com/uploads/1/3/4/6/134651336/nikarit_jijolexasojuxe_fizeli.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/a8222081-4558-42b1-abb3-641eb10f22d0/pitagikeji.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc1412bcd1e280355d6a3a9/t/5fc2b5a39ee0f32b87ac3986/1606596003784/arizona_storm_volleyball_commits.pdfIn PDF document text
    • https://s3.amazonaws.com/pazifetanegapu/kojewugovo.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc549542e537a05ef25fbe0/t/5fcda64fe43f2b00a8c56c3d/1607312980294/hollywood_action_movies_2017_imdb.pdfIn PDF document text
    • https://s3.amazonaws.com/muvevanepen/lovagore.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59f6d339-87d6-4fa1-8a5a-f544a914bcdc/scooby_doo_pirates_ahoy_transcript.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/46925f09-2543-4944-b913-24e366159357/15104851829.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1ea6ebfa-450b-4c16-8f50-da496d99e0fc/sylacauga_high_school_baseball_schedule.pdfIn PDF document text
    • https://s3.amazonaws.com/guvovigo/kapofodaxerufav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ab1bd61-2710-4380-8439-36793b45fef2/56291611028.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_off0000b768.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB768 5132 bytes
SHA-256: 808977d6b7ce71fc0b870471c188157b621d44c0ca86a5eafbffa2c0018e6e44
font_01_sfnt_off0000c8ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FF 9824 bytes
SHA-256: 28bc029aff42098e3846d8c2f52bf9d093e666528c2299da30dd8058ec9f65fd