Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b97d49d37820b9a…

MALICIOUS

PDF

97.9 KB Created: 2021-01-26 20:01:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 0a5820a9f02493ac8758fc0eb9a2ade8 SHA-1: bbe81901ffde9ad482a6d4ceb9358c4aa5d940de SHA-256: 6b97d49d37820b9a41c3e0315a9e4c89f1425732b232e43766e8c0686ac1bcce
96 Risk Score

Malware Insights

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

The file was identified as malicious by a ClamAV signature and an ML classifier, indicating a phishing attempt. An external URI pointing to 'https://jottigo.ru/123?utm_term=acts+1+commentary+catholic' was extracted, suggesting the PDF's purpose is to redirect users to this malicious site. The PDF structure itself contains obfuscated content, but the primary threat appears to be the embedded URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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/123?utm_term=acts+1+commentary+catholic PDF link annotation
    • http://1gusevshop.space/real_racing_3_pc_onlinem7ldu.pdfIn PDF document text
    • http://krokoboko3.xyz/26810708373w08ef.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380084/normal_600830531ab0d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4452835/normal_5fd19ad47361f.pdfIn PDF document text
    • http://shoop-fk.ru/best_sleep_sounds_app_freesfuz3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374013/normal_5ffd261c7927d.pdfIn PDF document text
    • http://reduslimitaly.website/31078438955srqg4.pdfIn PDF document text
    • http://mesretly.xyz/rezurevipomiveeat0t.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478438/normal_5fcae56aeb924.pdfIn PDF document text
    • http://wagajikis.iblogger.org/mofexibaxilexutajes.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xulaxun.rf.gd/barekasisatozaga.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/nofejanikawewinaxedalod.pdfIn PDF document text
    • http://delorikafuba.rf.gd/eurocontrol_airport_cdm_implementation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wejuvono/82616747319.pdfIn PDF document text
    • http://witegev.epizy.com/nexife.pdfIn PDF document text
    • https://s3.amazonaws.com/luxaduzimase/bootstrap_3_dropdown_login_form_example.pdfIn PDF document text
    • https://s3.amazonaws.com/tibitexil/understanding_form_gstr_3b.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/diabetes_guidelines_2018_europe.pdfIn PDF document text
    • https://s3.amazonaws.com/ligole/adidas_superstar_platform_sneakers.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/creative_writing_definition_and_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/foxboro_reporter_subscription.pdfIn PDF document text
    • http://zonefodewev.rf.gd/vidmate_2017_app_free.pdfIn PDF document text
    • https://s3.amazonaws.com/fejatepudopito/plant_3d_model_free_cadnav.pdfIn PDF document text
    • https://s3.amazonaws.com/zakunafu/hypertension_treatment_guidelines_during_pregnancy.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_off0001439e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1439E 5180 bytes
SHA-256: d01b4d72d4945199a0f24c1f03816aedb20425b954297cae69f92431973c8472
font_01_sfnt_off0001551b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1551B 10824 bytes
SHA-256: d5db3ad240f30810913fdcbaf92418aba6731d8d2f1fa273fb0e4aadb005cb68

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