Malicious PDF — malware analysis report

Static analysis result for SHA-256 e26f3493ab7da86e…

MALICIOUS

PDF

73.7 KB Created: 2021-02-23 23:10:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: b12fb92be51c54c3a394be949350b60e SHA-1: 180521a1827a44a85b416aa62c3ed92565269543 SHA-256: e26f3493ab7da86e59b8a58795735d8eb52f9bc2972f4ea487c7fe862ffc6bad
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. The document body, though truncated and containing non-readable characters, references 'cartoon hd apk for android 4.4.2' and the embedded URI points to a URL that likely hosts this application. This suggests a social engineering attempt to trick users into downloading and executing a malicious payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://seumenha.ru/wix?keyword=cartoon+hd+apk+for+android+4.4.2 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4455406/normal_5fe6d71ccab89.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4388050/normal_5ff545d638cdb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501659/normal_602bff4ddba17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412570/normal_600271bb3eb8d.pdfIn PDF document text
    • https://cdn.sqhk.co/dukizukijire/hbnie0P/pounds_to_grams_conversion_calculator_online.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418788/normal_600209c92abbf.pdfIn PDF document text
    • http://sizuxubotinukor.22web.org/92372915741.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465394/normal_5fea0d17af037.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370059/normal_5ffe1a9ee818b.pdfIn PDF document text
    • http://sayfelengs.space/taylor_big_baby_acoustic_electric_review23p5w.pdfIn PDF document text
    • http://twobigs.space/hamari_adhuri_kahani_full_movie_downk0y5q.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454289/normal_5fcef9c7efaf0.pdfIn PDF document text
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/x-_wing_pew_pew_meme4tt14.pdfIn PDF document text
    • http://oneitshop.pro/88459271426cjm3m.pdfIn PDF document text
    • https://cdn.sqhk.co/nowavutu/jfamgc2/93766015547.pdfIn PDF document text
    • http://vidapabil.22web.org/apache_netbeans_10._0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464521/normal_5fed6767c949b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://batunat.epizy.com/20512095674.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_off0000e220.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE220 5140 bytes
SHA-256: 3d1de34fe160c779d390b7a80820a5fbdd44eb393cc4f050cfea2a7879c79557
font_01_sfnt_off0000f3a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A5 11448 bytes
SHA-256: 8495f787937785513ec4eb365d300d5c50cdd1a4b0c23b8ed87651471c64e9b3

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