Malicious PDF — malware analysis report

Static analysis result for SHA-256 6382312d84fe5253…

MALICIOUS

PDF

64.0 KB Created: 2020-12-27 07:40:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: fc5ab735e3e983f9841d4bdfce0f8884 SHA-1: 8973b2b7370657580e720eb1cf79516e3a339ea4 SHA-256: 6382312d84fe525307bc4cbba2578e1fc4335f93fe9fba7e44eb070dee586908
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL disguised as a Punjabi video song, indicating a likely phishing attempt to trick users into visiting a malicious site. No scripts were extracted, but the presence of the URL and the heuristic firings strongly suggest a phishing or malware distribution vector.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://traffnew.ru/aws?utm_term=aadat+punjabi+video+song++pagalworld PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4422918/normal_5fb738cd70bf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384470/normal_5fa1989dbbf24.pdfIn PDF document text
    • https://soxoxalumowaju.weebly.com/uploads/1/3/4/7/134768556/molilij.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451377/normal_5fda588e7b49b.pdfIn PDF document text
    • https://bumobuzeki.weebly.com/uploads/1/3/4/4/134477779/6eb2c.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/03eb3a4f-28b7-4305-b696-afed11438749/basketball_legends_unblocked_66_weebly.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f7ed1116-c433-4c77-a94c-19abc4c17df8/dell_latitude_d830_drivers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/339a30a9-a6b1-4e96-84ab-91d53aeff305/tech_utilities_key_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/femawa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5feee165-c0ff-41c5-929d-2e2965bb1576/como_se_hace_un_cuadro_comparativo_en_excel.pdfIn PDF document text
    • https://s3.amazonaws.com/memobofilenabon/mososovekuguv.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_off0000bb23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBB23 5484 bytes
SHA-256: bdca6be8fcbaad154e140de6ce1cf0eaae6d05d2b4fbe2d129add7a4ac8cd86b
font_01_sfnt_off0000cdea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDEA 10564 bytes
SHA-256: e1caf14e65fa8aa37b689d33416d79da19ca826cf451d251e4d2fcf745e15627