Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee17d9067c7f62d5…

MALICIOUS

PDF

74.9 KB Created: 2021-02-11 21:51:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-04
MD5: 49119a7f922c7f6d6165c78e77fa1135 SHA-1: c8fe2fbabe06669b4d90420aa0137881271f6645 SHA-256: ee17d9067c7f62d55cab71e2f4dd68aeea7babd7a718811fb1ea94b5de0c9f63
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 that directs users to a suspicious domain, likely to host a phishing page or download further malware. The document body, though heavily obfuscated, appears to be related to the search query provided in the URL, suggesting a social engineering lure.

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://baarspo.ru/wix?keyword=salem+witch+trials+history+channel+questions PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4365560/normal_6015b755b3c39.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488806/normal_60107f16e1025.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453335/normal_601c058a3baf2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464702/normal_5fd090ad25658.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449178/normal_601c75d4328d0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475716/normal_60020c5ed2b64.pdfIn PDF document text
    • http://dovamemowiruz.iblogger.org/4519995951.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485443/normal_601f385550388.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/befarekogol/investigating_careers_chapter_26_study_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/kovilowab/34186748316.pdfIn PDF document text
    • https://s3.amazonaws.com/somamere/baldr_force_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/vuterijoze/10317765296.pdfIn PDF document text
    • https://s3.amazonaws.com/vabedafozo/34252694041.pdfIn PDF document text
    • https://s3.amazonaws.com/wizakokowe/38124364864.pdfIn PDF document text
    • http://pawegafed.rf.gd/fotamowabudima.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_off0000e822.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE822 5464 bytes
SHA-256: 24a4cc60419c360ae80e9e397b29ae99d6311785f7f5357980294a8922abfb37
font_01_sfnt_off0000faa3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAA3 10580 bytes
SHA-256: 5035785a0490d6a729804fdcac51795bbb1738274422662c285ea8063647aa36