Malicious PDF — malware analysis report

Static analysis result for SHA-256 eab905c40e93d69c…

MALICIOUS

PDF

74.1 KB Created: 2021-03-28 11:23:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 9290c0b010903d0f440e680eaae2ad7c SHA-1: 7fa22384722d5d98f0873823cff1cc056396cf30 SHA-256: eab905c40e93d69c904f3324e9ed982192696b049fa89f11ef591be9a0143a3e
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, classifying it as a phishing trojan. The document body, though heavily obfuscated, appears to be a lure related to pellet stove repair.

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://soxebez.ru/strik?utm_term=how+to+fix+a+pellet+stove+auger PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4480904/normal_601bd34f882ea.pdfIn PDF document text
    • http://towufato.mywebcommunity.org/the_care_and_keeping_of_you_1_pages.pdfIn PDF document text
    • http://milano-moda.space/koxabojapibomujotunigaxftk00.pdfIn PDF document text
    • http://kosonetibekub.medianewsonline.com/blanking_die.pdfIn PDF document text
    • http://doorstepcomputers.com/69337914064j7454.pdfIn PDF document text
    • http://garantiya62.ru/doce_cuentos_peregrinos_resumen_por_capitulos8xmaz.pdfIn PDF document text
    • http://logoped-samara.ru/98318125719rnerj.pdfIn PDF document text
    • http://hairsprof.ru/lurokapomevarujowuxirqdgz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457572/normal_60314f0d0b0b2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://9fd063f5-a6e2-47f0-a1c8-15c646e36cc9.filesusr.com/ugd/ee11ea_fec540ec71d34a5b8b7913cb532759bf.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/tojazudibumogab/65578116382.pdfIn PDF document text
    • https://s3.amazonaws.com/bogeguva/guvez.pdfIn PDF document text
    • https://6d5fec37-5936-4ae8-8938-03a86e982f09.filesusr.com/ugd/d4da64_72af1ede122a4a5e9ca90f39db43bbd6.pdf?index=trueIn PDF document text
    • https://9a4203bb-6ff2-4ef1-9c63-3f113f84a884.filesusr.com/ugd/ea9bdf_93e0fdbdfd394c6898feebca4b6be322.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/jugobimuraje/agro_tech_foods_limited_annual_report.pdfIn PDF document text
    • http://wutasudi.epizy.com/clinical_chemistry_tests.pdfIn PDF document text
    • https://ac263381-fdad-4fda-ae78-6df6d71032d6.filesusr.com/ugd/25c42e_8b4cea08e8b64b55bba91dd869592101.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/lazesej/is_super_kirby_clash_free.pdfIn PDF document text
    • https://76b44699-1094-4fd8-8d4a-70b7be8159c3.filesusr.com/ugd/c450b2_96c2543081fb4d508a37ad1cd26362d4.pdf?index=trueIn PDF document text
    • http://zutibebasonuf.epizy.com/best_formal_dresses_near_me.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_off0000e4d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4D5 5252 bytes
SHA-256: 248b0a3ad2675b87f3ce7559b8a797f83f6b866fa3dbd8d15ab19571660df2d3
font_01_sfnt_off0000f6df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6DF 10656 bytes
SHA-256: f3160338d02c28cc03597674d764d2971a45a534990c49f2d0550c747043c321

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