Malicious PDF — malware analysis report

Static analysis result for SHA-256 eadc813e3e0d056c…

MALICIOUS

PDF

70.4 KB Created: 2021-01-21 13:22:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 0cabe15a929ef1188b5ce933d933f0b9 SHA-1: 60f8c62e0df959e9dc0563c7f46c10a4f0cad47f SHA-256: eadc813e3e0d056cbbaa74cef04c22d0c1557638d1c2a5e9acec800c043d07b4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains an embedded URL that directs users to a website related to DMV written test questions, a common lure for phishing. ClamAV detection and ML classification strongly indicate malicious intent, likely for phishing or malware distribution. No scripts were extracted, but the presence of an external URI and the overall detection profile suggest a phishing attack.

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://leonvi.ru/aws?utm_term=dmv+written+test+questions+and+answers+georgia PDF link annotation
    • https://site-1166704.mozfiles.com/files/1166704/download_mcpe_master_apk_uptodown.pdfIn PDF document text
    • https://site-1202889.mozfiles.com/files/1202889/warhammer_2_bretonnia_army_guide.pdfIn PDF document text
    • https://site-1168349.mozfiles.com/files/1168349/occupational_therapy_jobs.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472763/normal_5ffda7900cb6b.pdfIn PDF document text
    • https://site-1247225.mozfiles.com/files/1247225/luvabazuwumotevasojo.pdfIn PDF document text
    • https://kerawidirara.weebly.com/uploads/1/3/4/7/134746453/xulijonozonuvakinowu.pdfIn PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/4387768.pdfIn PDF document text
    • https://site-1243523.mozfiles.com/files/1243523/gibetawesulone.pdfIn PDF document text
    • https://site-1179780.mozfiles.com/files/1179780/rosurite.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366063/normal_5f8853392857b.pdfIn PDF document text
    • https://site-1172011.mozfiles.com/files/1172011/anti_formiche_fatto_in_casa.pdfIn PDF document text
    • https://lutoropekitixes.weebly.com/uploads/1/3/1/3/131384777/bigufegigerevo-wiwiwetumiton-kupajovu.pdfIn PDF document text
    • https://site-1202010.mozfiles.com/files/1202010/46686884257.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375088/normal_5fcd541c16f68.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://s3.amazonaws.com/vinejivunitego/4409254291.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/agent_vinod_full_movie_1gb.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/2012_chevy_sonic_manual_review.pdfIn PDF document text
    • https://s3.amazonaws.com/tokudapele/clean_booster_app_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/gezetega/93146870371.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_off0000c9c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC9C5 5272 bytes
SHA-256: 436b17a536ef4c62f15ade0f8dee4e2989310a35250029d3cdb1555cca6f8de6
font_01_sfnt_off0000dba0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBA0 9932 bytes
SHA-256: 54af3aec8927d43cff433bbe47a4ab152aacbf368b2a3737022131a7dc5f4fb8
font_02_sfnt_off0000fd89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD89 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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