Malicious PDF — malware analysis report

Static analysis result for SHA-256 fda32f77cabe87f0…

MALICIOUS

PDF

82.7 KB Created: 2021-03-08 04:04:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 5a4da50168c682e525c998c007f0c9a0 SHA-1: 596839100d1f4a553848937cc4e3c537bbf77d04 SHA-256: fda32f77cabe87f02cc2bfd02d94021d7bda9d079431366635819d89b459357b
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 0.9996

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://baarspo.ru/aws?utm_term=why+does+my+carbon+monoxide+alarm+keep+going+off PDF link annotation
    • http://spoonnumberone.xyz/povekenitemadobogimtxgzd.pdfIn PDF document text
    • http://garobunatuxovi.scienceontheweb.net/gidafemuzubavesakonamuwa.pdfIn PDF document text
    • http://sfr-webmail.com/porazelowexotaxejum4y9y8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453747/normal_5fcba03fba903.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443354/normal_603cfa5526ec2.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/55859112693.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383449/normal_5feafef5bbf95.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498330/normal_6001530f3bece.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/nuselufuzo/jegozar.pdfIn PDF document text
    • https://s3.amazonaws.com/fatikonavori/sufodeban.pdfIn PDF document text
    • https://s3.amazonaws.com/miledu/22196678282.pdfIn PDF document text
    • https://s3.amazonaws.com/fekazudabo/61937689952.pdfIn PDF document text
    • http://juludiripo.myartsonline.com/how_to_complain_to_pals.pdfIn PDF document text
    • https://s3.amazonaws.com/vukusa/open_outlook_template_from_access.pdfIn PDF document text
    • https://s3.amazonaws.com/jiwisi/86970396786.pdfIn PDF document text
    • http://tososite.onlinewebshop.net/5537052223.pdfIn PDF document text
    • https://s3.amazonaws.com/nalifij/29250528898.pdfIn PDF document text
    • http://jatoxat.atwebpages.com/43951071469.pdfIn PDF document text
    • https://s3.amazonaws.com/kumasala/brave_fighter_2_android_1_com.pdfIn PDF document text
    • https://s3.amazonaws.com/xixonu/how_is_electrical_energy_used_in_everyday_life.pdfIn PDF document text
    • https://s3.amazonaws.com/timeziso/vomozivanorifijovupupib.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_off000103ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EF 5956 bytes
SHA-256: 4b452f507f78fa3884c7dd47517aac93d64af4038a94569c0d6eb8f26e32a17f
font_01_sfnt_off0001182b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1182B 10716 bytes
SHA-256: 5e12769e1e4562ba9ecd780523f25f96769fdbaf4b460267be43f379d7fc44b4

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