Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f2c4eee69aa9ff6…

MALICIOUS

PDF

72.6 KB Created: 2021-03-16 07:49:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 037e4a1a63d51b0150e13d4fd1d72074 SHA-1: edaa8af2b920e3e58a49247f33bab4e08e1b7fd0 SHA-256: 2f2c4eee69aa9ff6f524520adbceb82209c707921ac8ee2d2f38aa470ecfcb01
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL 'https://seumenha.ru/wix?keyword=doom+2+gba+rom' suggests a lure to download further malicious content, likely another PDF or executable. The document body is heavily obfuscated, preventing a clear understanding of its direct purpose beyond the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://seumenha.ru/wix?keyword=doom+2+gba+rom
    • http://jenewazajasazu.getenjoyment.net/wuwab.pdf
    • http://garanibukumom.scienceontheweb.net/30399058415.pdf
    • http://livemavuxedu.getenjoyment.net/kukonuxazibavapeto.pdf
    • https://static.s123-cdn-static.com/uploads/4486745/normal_5fcff2f23017f.pdf
    • https://cdn-cms.f-static.net/uploads/4448733/normal_6011b154b8a59.pdf
    • https://static.s123-cdn-static.com/uploads/4426267/normal_5fed32246b377.pdf
    • http://2220202.ru/solving_quadratic_equations_by_factoring_worksheet_answersy98a3.pdf
    • http://tefuvawilutir.mypressonline.com/what_specific_techniques_are_used_in_the_cognitive_behaviour_therapy_cbt_approach.pdf
    • http://1xbet-registr.site/human_skeletal_anatomyup31j.pdf
    • https://static.s123-cdn-static.com/uploads/4386074/normal_6002a25772533.pdf
    • http://tuzogat.sportsontheweb.net/6770823378.pdf
    • https://cdn-cms.f-static.net/uploads/4387036/normal_6010801d4fb3d.pdf
    • http://freud.icu/hamilton_beach_easy_reach_toaster_oven_manualhg6i9.pdf
    • https://cdn-cms.f-static.net/uploads/4484995/normal_5fe80583bc580.pdf
    • https://static.s123-cdn-static.com/uploads/4478438/normal_5fde5b6baaa80.pdf
    • https://cdn-cms.f-static.net/uploads/4483088/normal_604718d09f283.pdf
    • http://gobitujesan.scienceontheweb.net/36815441676.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xonolori.atwebpages.com/bionic_turtle_frm_study_material.pdf
    • https://s3.amazonaws.com/guvovigo/53963789114.pdf
    • https://s3.amazonaws.com/vebogotexaf/75318402902.pdf
    • https://s3.amazonaws.com/xubifupi/gamixananiz.pdf
    • http://padusij.onlinewebshop.net/bible_theology_books_in_telugu.pdf
    • https://s3.amazonaws.com/dixaleko/wevip.pdf
    • https://s3.amazonaws.com/fowikorejodi/zalalikazuxasitifi.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e13e.bin
4f245ea6ddd1e26bf70040849770e49cbbbbe200e695528479640edd9af97a1d
pdf-font-stream PDF embedded font (sfnt) at offset 0xE13E 5068 bytes
font_01_sfnt_off0000f26e.bin
5fcadce8ba674d4740dde192af808d351d6f7a2e2733c63bb3504cda544eb15a
pdf-font-stream PDF embedded font (sfnt) at offset 0xF26E 10152 bytes