Malicious PDF — malware analysis report

Static analysis result for SHA-256 347a84b25d531164…

MALICIOUS

PDF

107.8 KB Created: 2021-03-09 14:27:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: ebc202cd222b4d1ee3c816343ce88a15 SHA-1: 50142da3e6f77356cb13f8216c2d9ccb0d506295 SHA-256: 347a84b25d531164b790efbc98014a1b1e9b59586abb85fdff1f1c5aaec53042
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URL that, when visited, likely leads to a phishing or malware download site. The document body, though partially corrupted, suggests a lure related to a game guide, indicating a social engineering tactic.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/wix?keyword=marvel+strike+force+ultimus+raid+guide PDF link annotation
    • https://cdn.sqhk.co/jifedibodo/iadWjiW/blood_copter_mod_apk_v0._1._0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380076/normal_6010a65260e74.pdfIn PDF document text
    • http://yeswins.space/xogizkxyub.pdfIn PDF document text
    • http://filemarker.store/how_to_make_a_tied_fleece_blanket_youtube7a04e.pdfIn PDF document text
    • http://mukinumatonewo.getenjoyment.net/48740638620.pdfIn PDF document text
    • http://tanivikovome.sportsontheweb.net/wemadigetijawediku.pdfIn PDF document text
    • http://sputnews.com/braverman_company_has_two_manufactur50rzs.pdfIn PDF document text
    • https://cdn.sqhk.co/tabawapizak/f5wcwge/transmission_shops_near_me_open.pdfIn PDF document text
    • http://denizan.com/mitosis_vs_meiosis_worksheet._doc8qojn.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412899/normal_5fe20b43c9775.pdfIn PDF document text
    • https://cdn.sqhk.co/goponebegor/hihsXji/87287330136.pdfIn PDF document text
    • https://cdn.sqhk.co/jaziwuke/jalPvjc/30997508325.pdfIn PDF document text
    • http://xagakojitogiva.getenjoyment.net/apollo_twin_duo_mk2_review.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/bopuxosavubare/tamanoropekebil.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/archive_of_our_own.pdfIn PDF document text
    • https://s3.amazonaws.com/rujabepifar/61527268578.pdfIn PDF document text
    • https://s3.amazonaws.com/nuxomigo/ziwamuxawoletexonifax.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/gapudexedexipepenam.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/wozub.pdfIn PDF document text
    • http://ketabigumowun.atwebpages.com/ignatius_study_bible_online.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/mr_beams_mb990_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/jagomilawuguk.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/worksheet_feeling_and_emotion.pdfIn PDF document text
    • http://xuvekixofeku.onlinewebshop.net/what_glands_are_involved_in_the_endocrine_system.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_off00016ab5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16AB5 5468 bytes
SHA-256: a13f45db62896e8cc53ee691e531954f83cfb3930377b4fff6e6dbf6d6a125e2
font_01_sfnt_off00017d4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17D4F 10444 bytes
SHA-256: 6bef0574596d75186f7530abf2641fb3817b53f64c5cccfb063d4363da306c2f

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