Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ac2c6e603415537…

MALICIOUS

PDF

75.8 KB Created: 2021-04-02 16:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 022462043c354ad87f67ad16a9ba3d43 SHA-1: ff55f7d07aebe4d67d866dfa068dd9b364daab09 SHA-256: 1ac2c6e60341553783f3ed27fade94cc01a6839e9936fbe6f864549896d344db
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is presented as a link to download a game. The ML classifier and ClamAV detection strongly indicate maliciousness. The presence of embedded URLs suggests an attempt to redirect the user to a malicious site for phishing or malware delivery.

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://cdn.sqhk.co/kuwusemob/CeW8Yie/rimidozilitimonofitiga.pdf In PDF document text
    • https://cdn.sqhk.co/xelimibela/8jejdHq/literary_elements_worksheet.pdfIn PDF document text
    • https://cdn.sqhk.co/mamevugixej/ihj2hcY/gefalavizate.pdfIn PDF document text
    • https://cdn.sqhk.co/supopareso/3hghfgj/jalozimutoku.pdfIn PDF document text
    • https://cdn.sqhk.co/nipigagavadu/1jdhemI/sowaxizufojud.pdfIn PDF document text
    • https://cdn.sqhk.co/jilowepe/ubiagxM/stackable_rings_gold_silver_rose_gold.pdfIn PDF document text
    • https://cdn.sqhk.co/savaketiju/DsggGhe/xijusozixe.pdfIn PDF document text
    • https://cdn.sqhk.co/powurejur/iewDhbP/lajilalefemazaf.pdfIn PDF document text
    • https://cdn.sqhk.co/joxutedunik/t7Nfhg8/race_kings_mod.pdfIn PDF document text
    • https://cdn.sqhk.co/kosuxatune/eNYiche/uc_browser_for_pc_2019_free.pdfIn PDF document text
    • https://cdn.sqhk.co/woragumokewi/QbjaNLw/lg_xboom_rk7_price_philippines.pdfIn PDF document text
    • https://cdn.sqhk.co/nemalerute/hgViggf/four_freedom_speech_definition.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://feedproxy.google.com/~r/wb/ENAH/~3/n4t4wXRn-MA/wb?keyword=lego%20harry%20potter%201-4%20hogwarts%20free%20playPDF link annotation
    • https://s3.amazonaws.com/sajezife/66096125493.pdfIn PDF document text
    • https://s3.amazonaws.com/sinamozagemoger/isagenix_ingredients.pdfIn PDF document text
    • https://s3.amazonaws.com/kodipopujufipig/83923358542.pdfIn PDF document text
    • https://s3.amazonaws.com/kexamoxusinixu/coliform_water_test_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/raees_movie_trailer_song.pdfIn PDF document text
    • https://s3.amazonaws.com/kosipefojaw/fodubofamu.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_off0000e8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE8CD 5468 bytes
SHA-256: c63d025ac5f606ff12b8dd3d7c3fc931e37091d9d383671a99b6ac9780830153
font_01_sfnt_off0000fb9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB9B 11340 bytes
SHA-256: ed676dc99ff74d68daf71bf0d908864a5bc367d75efb302d1ab74dcc519bd765

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