Malicious PDF — malware analysis report

Static analysis result for SHA-256 180fb73979ad7418…

MALICIOUS

PDF

75.5 KB Created: 2021-01-30 15:10:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 57c69c93cfb4bd64a250c49e38c7946e SHA-1: 9a370560edc2753ee71fbb6329356388827bb84d SHA-256: 180fb73979ad741861a9afad8702cb926141dbe66e90ce906ff7a30e53ce3dd2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The document body, though heavily obfuscated, contains references to 'Codycross answers', suggesting a lure to a fake search result page. The embedded URI points to a suspicious domain, likely serving a malicious payload or phishing content.

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://crophysi.ru/aws?utm_term=codycross+answers+group+55+puzzle+3 PDF link annotation
    • http://fofikotopavabe.iblogger.org/emtek_f20_mortise_lock_template.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419424/normal_5fef71e61a854.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4383128/normal_5fddbccaa3c5d.pdfIn PDF document text
    • http://ruwegekugite.22web.org/13757525872.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427313/normal_5fde81743c79b.pdfIn PDF document text
    • http://fotodosajube.22web.org/jadot_pouilly_fuisse_tech_sheet.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/zerejibixupav/best_biodata_format_for_marriage_in_marathi.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/church_letter_transfer_form.pdfIn PDF document text
    • https://s3.amazonaws.com/dagasopones/68993155918.pdfIn PDF document text
    • https://s3.amazonaws.com/zoxewudunigus/bridges_in_mathematics_grade_3.pdfIn PDF document text
    • http://dakawat.epizy.com/93782343969.pdfIn PDF document text
    • https://s3.amazonaws.com/mefovu/64514191689.pdfIn PDF document text
    • https://s3.amazonaws.com/fidefofudi/lakipojuk.pdfIn PDF document text
    • https://s3.amazonaws.com/marimejerebo/mv_answer_love_myself_bts.pdfIn PDF document text
    • http://rovuritag.rf.gd/tecnicas_del_aprendizaje_colaborativo.pdfIn PDF document text
    • https://s3.amazonaws.com/simujix/9429285833.pdfIn PDF document text
    • http://rubuvajaroxe.epizy.com/deed_of_sale_of_land.pdfIn PDF document text
    • https://s3.amazonaws.com/nuselufuzo/information_about_partial_solar_eclipse.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e942.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE942 5680 bytes
SHA-256: a1a4fa194557a961bf7d1ed6110ef1018b8ef49c1eaa37f83d50ea1e7c74aa5a
font_01_sfnt_off0000fcd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCD0 10484 bytes
SHA-256: 8dfbd3e7470a557cd493c3c32d37ad20e2d5ef0f1f280850c9afec6790c3711d

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