Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3247f7725524466…

MALICIOUS

PDF

78.9 KB Created: 2021-03-19 04:39:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: d1e355d7beafb7f3d22b80f8c6119638 SHA-1: 28e5a5a4ffb53486cf4da2fefa28fafbc9711b3b SHA-256: c3247f77255244668aec801fcdc967dc8e383c62bbd3ab8680af211bfe613516
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://midufefew.ru/wix?keyword=how+to+get+free+coins+on+madden+mobile+20 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370542/normal_60131395743d7.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/introduction_to_chemistry_bauer_4th_editioncfp75.pdfIn PDF document text
    • http://nitanupemil.mygamesonline.org/discuss_on_genetic_polymorphism.pdfIn PDF document text
    • http://nopuvobetag.mygamesonline.org/what_are_the_qualities_of_a_christian_family.pdfIn PDF document text
    • http://yoganchik.space/80403389417tgshs.pdfIn PDF document text
    • http://netewe8.xyz/rarejomagesujexe8rebk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409998/normal_604d0834506ea.pdfIn PDF document text
    • http://bitcoinlearningcentre.online/libro_espaol_lecturas_primer_grado_sep_19937fpdo.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/pukiza/birds_nature_sounds_free.pdfIn PDF document text
    • https://s3.amazonaws.com/jizubisetebof/28522345558.pdfIn PDF document text
    • http://zedofaxuboz.onlinewebshop.net/dewenetudegoken.pdfIn PDF document text
    • https://s3.amazonaws.com/voxazedisula/paleontology_dictionary.pdfIn PDF document text
    • http://sitafefisoju.atwebpages.com/toilet_tank_not_filling_dual_flush.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/1032056594.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/shut_up_flower_boy_band_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/schwinn_womens_mifflin_26_hybrid_bike_-_pink.pdfIn PDF document text
    • https://s3.amazonaws.com/jivala/business_email_template_error.pdfIn PDF document text
    • http://ralirajuz.atwebpages.com/37325915429.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/how_to_get_rid_of_acne_scars_on_back_and_chest.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_off0000f4f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF4F1 5808 bytes
SHA-256: f5d00ca75121b8072bb60a9dcf13581f7fdea6bec3ec2a4939ad5c77177242db
font_01_sfnt_off000108b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108B9 10884 bytes
SHA-256: 2eb01016520cd4082f4ba748a5d36601d6f0adb54ddeeb26d0c63a685e58cce8

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