Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ee910186261855a…

MALICIOUS

PDF

75.0 KB Created: 2021-02-17 00:31:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 12da54eda1ad51649ec5d107d71e30f8 SHA-1: 7939ac479da6bc7b1af546734683595f078b7e1c SHA-256: 3ee910186261855ac1b1e11522fbf6b72e409989467b3cca7ffdf0d7c089c085
96 Risk Score

Malware Insights

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

The file is a PDF document detected as malicious by ML classifiers and ClamAV. It contains an embedded URL that mimics a search query, suggesting a phishing or credential harvesting attempt. While no scripts were explicitly extracted, the PDF structure and embedded URI indicate an attempt to redirect the user to a malicious external resource.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://jacksth.ru/strik?utm_term=how+do+i+change+the+battery+in+my+g+shock+mudmaster PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4480899/normal_60059ebbce758.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4456119/normal_5fdda1f2c2ff0.pdfIn PDF document text
    • http://hookup756.fun/pasoreromoxupuwawovakadeoqnvl.pdfIn PDF document text
    • http://filanion.online/kebugonatekudimuboxejomof7oes.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403563/normal_5fe4feb48228e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369920/normal_5fda60857033f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426543/normal_5fdaba36cdeac.pdfIn PDF document text
    • http://changepass.online/gavopexasikexin14oc.pdfIn PDF document text
    • https://cdn.sqhk.co/bijilixiger/heidobR/gunijafijusejivadum.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444102/normal_5fd7f187688d2.pdfIn PDF document text
    • http://betmoy54.com/8207032380669lkw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487918/normal_6001cf81a0854.pdfIn PDF document text
    • http://milansit.space/xiruzafuwejikuwoykanm.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/xijuxosisomuna/insert_excel_sheet_as_object_in_word.pdfIn PDF document text
    • http://sosozodazu.epizy.com/avira_rescue_system_2019.pdfIn PDF document text
    • http://bikevobo.rf.gd/40753906178.pdfIn PDF document text
    • http://zigubogujivo.epizy.com/lonagatobodesosal.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_off0000e3f5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3F5 5680 bytes
SHA-256: 4a84600b573e04879f559fedea2931fdf6b2512c8bf3da6650f0d79cdd781ca1
font_01_sfnt_off0000f72f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF72F 11016 bytes
SHA-256: cc16f2398704dd5cfea69dafbb9afb7b190a71e1479819e2d562a2480b2e2257

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