Malicious PDF — malware analysis report

Static analysis result for SHA-256 feea42ac9a67cf5a…

MALICIOUS

PDF

84.1 KB Created: 2021-03-03 16:54:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: f42b793c66f4781b470a6f2e123f73f0 SHA-1: 573e5d0fb0e6558f94c1901c25b7550f3fccf79c SHA-256: feea42ac9a67cf5aa0937b530865afe0c7fcf7c59bc0afeb3eaa0625d213b227
136 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 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Image-heavy PDF with invisible link to suspicious domain high PDF_SUSPICIOUS_LINK_LURE
    PDF is a small image-heavy lure with invisible link annotations that send the user to a suspicious high-risk-domain URI. This matches credential-phishing carriers where the visible document is only a prompt and the real collection flow happens on the linked website.
  • 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://xezojetit.ru/123?utm_term=garmin+delta+upland+xc+remote+training+collar+with+beeper PDF link annotation
    • http://konalofasu.mywebcommunity.org/wahl_trimmer_amazon.ca.pdfIn PDF document text
    • http://loginwithfb.site/kezetebabepdw5g6.pdfIn PDF document text
    • http://detonic-shop.website/federal_election_canada_platformscareh.pdfIn PDF document text
    • http://form-lnstagramcopyrightservice.com/514267455840e52.pdfIn PDF document text
    • http://idealslimitalia-official.site/kirozozumolupudabu9l072.pdfIn PDF document text
    • http://brosbass.com/brene_brown_netflix_seriesx0d34.pdfIn PDF document text
    • http://jirafka.space/new_york_guide_book_2019nclbr.pdfIn PDF document text
    • http://ultra0.space/evacuated_tube_system_for_blood_collectiona6o60.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/zopenave/in_on_under_beside_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/divelikubapiwaj/dolavisemujuwi.pdfIn PDF document text
    • http://wiwazisumi.rf.gd/63427468763.pdfIn PDF document text
    • https://s3.amazonaws.com/tunenijexe/jupotofetomaw.pdfIn PDF document text
    • https://s3.amazonaws.com/mexijegedakol/yealink_w60p_quick_start_guide.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9BE 5520 bytes
SHA-256: 2048a61196a3568d6beabe0917029474499d7225e1628bdf993f3323e28aaae4
font_01_sfnt_off00010c5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C5F 11384 bytes
SHA-256: 0c7594a9733c97499b94d6530db8e7159c636c19803226a12d0d10496f6e92dd
font_02_sfnt_off000132e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x132E1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e