Malicious PDF — malware analysis report

Static analysis result for SHA-256 005e6600f40d79a4…

MALICIOUS

PDF

79.6 KB Created: 2021-04-07 09:16:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-10
MD5: 52099ae5ab37a3958186062acbb923d1 SHA-1: 4664167f15db8329dc0e3990a526c22d202895d2 SHA-256: 005e6600f40d79a49af00918b05ac80a041110d8f1b28b6dd0061eabbdb2ca88
156 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one prominent URL suggesting a lure related to 'betty boop seat covers australia'. The ClamAV detection and ML classifier strongly indicate malicious intent, likely phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs are indicative of techniques used to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://baarspo.ru/wix?keyword=betty+boop+seat+covers+australia PDF link annotation
    • http://damewumesigalut.medianewsonline.com/geometric_mean_practice.pdfIn PDF document text
    • https://cdn.sqhk.co/bebomopakax/altWjRc/38443002898.pdfIn PDF document text
    • https://cdn.sqhk.co/bemememu/geDghha/finovarumogidubexusopaxup.pdfIn PDF document text
    • http://geloritiveda.mygamesonline.org/41440059811.pdfIn PDF document text
    • http://weviwoza.22web.org/quadratic_equation_definition_with_example.pdfIn PDF document text
    • https://cdn.sqhk.co/redusebi/ja00Qge/20142344249.pdfIn PDF document text
    • https://cdn.sqhk.co/sabumijobude/gciaieW/kotosafibalakupakenone.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://e9155d39-0f7d-4366-9ee8-34e17fe3d773.filesusr.com/ugd/9e05b8_0543d3a25c904fbd92a4d7d1fea70c7e.pdf?index=trueIn PDF document text
    • https://fecd0c08-032d-4b8b-b26c-6108aca7a00f.filesusr.com/ugd/a87c8b_ad589eb44d384362a32bd28286a130d3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fedure/infection_control_guidelines.pdfIn PDF document text
    • https://s3.amazonaws.com/rejiner/57730914522.pdfIn PDF document text
    • http://vogijub.rf.gd/zifedulekoludajafek.pdfIn PDF document text
    • https://5548a280-a194-4776-8019-0e256783c1fa.filesusr.com/ugd/f2c1dc_578b052393df4d1c91fe9f248aa13126.pdf?index=trueIn PDF document text
    • http://vujesidewu.rf.gd/96809144692.pdfIn PDF document text
    • https://s3.amazonaws.com/muwemivumazulax/primavera_p6_software_free_download_for_mac.pdfIn PDF document text
    • https://s3.amazonaws.com/jepinebawo/zemuxop.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/monaxenodifadilixu.pdfIn PDF document text
    • http://betorigejoli.rf.gd/new_army_pt_uniform_regulation.pdfIn PDF document text
    • https://6cbe2f5c-748b-4bc6-b691-25a968a47885.filesusr.com/ugd/d6b5da_8421fb93e9f24e9a82f9815e6d45692b.pdf?index=trueIn PDF document text
    • http://vagelebab.rf.gd/91265240074.pdfIn PDF document text
    • https://s3.amazonaws.com/rawesaragegugar/nom_factores_psicosociales.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_off0000eab0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB0 3048 bytes
SHA-256: f63f4ebd7e9a050fabfc10557eda9198c361c4570def4690fa362ff7c65c8d9c
font_01_sfnt_off0000f579.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF579 5276 bytes
SHA-256: 8f97dd851ebdd658e5d3ee3a21b85018542f89c8a8dddeaebb32f3432e0ed952
font_02_sfnt_off00010784.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10784 11632 bytes
SHA-256: e56e6dfe8ab9bb28bf9754778aac2da331227d10d19280b98cdaa313d057f3e1

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