Malicious PDF — malware analysis report

Static analysis result for SHA-256 acbae49bcf7ec874…

MALICIOUS

PDF

79.4 KB Created: 2021-02-20 13:50:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 4ff879b89b78df8b51f2bbc00108c979 SHA-1: df7257865a49f03e0f909d1c3a9f31cf5072c187 SHA-256: acbae49bcf7ec87465a841ea40a680b5081fbdef5860737ccbcabc1d5d96dd87
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9998

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://jottigo.ru/wix?keyword=united+767-300+economy+plus+review PDF link annotation
    • https://cdn.sqhk.co/ralapogifur/Tkhfifb/bollywood_ringtone_2019_kabir_singh.pdfIn PDF document text
    • https://cdn.sqhk.co/wusezofetib/MgcJQLt/bubble_tea_maker_milk_tea_shop.pdfIn PDF document text
    • https://cdn.sqhk.co/dokukavifig/3hcrmQX/how_to_bake_sweet_potatoes_fries_crispy.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4500887/normal_602ae71f52801.pdfIn PDF document text
    • https://cdn.sqhk.co/kewukapugino/Azfhjhi/idle_flipper_unlimited_money_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465707/normal_601a03cb6d72a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465018/normal_5ff8cac8a9041.pdfIn PDF document text
    • https://cdn.sqhk.co/nopawuwam/hdHjejh/10722943730.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4470540/normal_60082042b912b.pdfIn PDF document text
    • https://cdn.sqhk.co/rorazelesu/haPRidx/vaweravijo.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/lanorolowu/latin_root_word_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/lurutopobi/bharat_movie_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/rutufokedizon/the_dawn_wall_imdb_parents_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/wibedubosateg/24063811047.pdfIn PDF document text
    • https://s3.amazonaws.com/jalasilunaz/saguwidiju.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_off0000eb1f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB1F 5708 bytes
SHA-256: 5fd152a7c4ad9b9b734871d801833b179a883e54a4ad058adbde5b01308a046d
font_01_sfnt_off0000fe91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE91 10476 bytes
SHA-256: b58536358e64d8015f3c636cdaa9b94c682cf8c7ef75d8b60da4d99e149279c7
font_02_sfnt_off0001227a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1227A 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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