Malicious PDF — malware analysis report

Static analysis result for SHA-256 a80ceeba3d8c1de4…

MALICIOUS

PDF

64.9 KB Created: 2020-11-24 22:36:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c5aac293cd369b4235d5fb6668a2e807 SHA-1: 19b65cde0935d51e773bebcf645db19e715d81cf SHA-256: a80ceeba3d8c1de46d7808c242aa3c6f639d7a9c84ecdfa41189c8c6206e2b51
96 Risk Score

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 0.9997

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://traffnew.ru/strik?utm_term=the+police+in+america+an+introduction+9th+edition+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4374686/normal_5fb3049031cc0.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://uploads.strikinglycdn.com/files/5450b18b-5dae-48fb-a938-3bd0760e6546/warrior_cats_cloudtail.pdfIn PDF document text
    • https://s3.amazonaws.com/kuboki/94027136697.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/cbt_handouts_for_anxiety.pdfIn PDF document text
    • https://s3.amazonaws.com/pisik/ragibizonipelizixekiluga.pdfIn PDF document text
    • https://s3.amazonaws.com/tetenifeme/1180_tres_ninos_corte.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/wow_classic_skinning_knife.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/maretikovolujisurel.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/the_lion_king_2019_watch_online_123.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/joluritoxizifazas.pdfIn PDF document text
    • https://s3.amazonaws.com/tipakalif/46219164771.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/mysail_oakland_university.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_off0000b64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB64C 5204 bytes
SHA-256: 0fd1bc4b82d7803d9134b3ebea9e00ae366be18d6c535feea176c802a5cb4b92
font_01_sfnt_off0000c7c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC7C9 9568 bytes
SHA-256: e9c746f8fbda336bcd1f2f5e7b5b2b22426d75a74e058116956c7d3c5a6787b3
font_02_sfnt_off0000e871.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE871 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2