Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8225700d88b29b7…

MALICIOUS

PDF

79.1 KB Created: 2021-03-28 16:21:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f774e5c08c86673a73af4693b0a9afe7 SHA-1: 5b5f306050856f7753296caba35fed3d083c4d88 SHA-256: e8225700d88b29b77bb9a793c50acb98009092d100781dd746f2c44ab7894ea6
104 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ClamAV and an ML classifier. It contains an embedded URL that is likely part of a phishing or malware distribution scheme, disguised as a budget template. The heuristic 'SE_INVOICE_LURE' further suggests a deceptive intent, aiming to trick the user into interacting with the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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://pelibifir.ru/award?keyword=free+printable+personal+budget+template+pdf
    • https://cdn-cms.f-static.net/uploads/4377935/normal_603a01cb5606c.pdf
    • https://cdn-cms.f-static.net/uploads/4389355/normal_600aea118df34.pdf
    • http://wowezixuxaxu.22web.org/81395597793.pdf
    • https://cdn-cms.f-static.net/uploads/4493867/normal_5fd8cb0134c45.pdf
    • https://cdn-cms.f-static.net/uploads/4416811/normal_601d4f1a5e8cd.pdf
    • http://vuxuvex.iblogger.org/25282493045.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nofiwes.rf.gd/best_universities_to_study_international_law_in_europe.pdf
    • https://s3.amazonaws.com/lekelepowo/maxobenewuni.pdf
    • http://sobogasitizi.epizy.com/torafovinuvuzegikes.pdf
    • https://s3.amazonaws.com/sixolose/does_blue_cross_cover_couples_counseling.pdf
    • https://s3.amazonaws.com/juvuraguvutoxif/joggle_joint_sheet_metal.pdf
    • http://girogabunuxumu.rf.gd/borland_delphi_5_enterprise_free.pdf
    • https://s3.amazonaws.com/juzewojavomofew/riganofexewasuzufub.pdf
    • https://s3.amazonaws.com/rurosaveruk/kogefelarabivamova.pdf
    • http://mirepili.epizy.com/what_does_open_wod_mean_on_apple_watch.pdf
    • https://s3.amazonaws.com/wewuxuviwar/34596182741.pdf
    • https://s3.amazonaws.com/gopifu/xedavi.pdf
    • https://s3.amazonaws.com/gedesisumi/47931355164.pdf
    • https://s3.amazonaws.com/dewutexorob/medea_and_other_plays_euripides.pdf
    • http://fodusazal.rf.gd/estampie_royal_violin_sheet_music.pdf
    • http://petifogowiga.epizy.com/physical_development_in_adolescence.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f75f.bin
9a0ac4d8e5fe22aa8485724adc4e5dff626cc2f2a6aea4c3c2ab1b7d0a4c4ed8
pdf-font-stream PDF embedded font (sfnt) at offset 0xF75F 5456 bytes
font_01_sfnt_off000109cf.bin
605aeebd7a2277c5ad17b8251ff3eeeffea16f95872bcc46cc1375e5538ad3cd
pdf-font-stream PDF embedded font (sfnt) at offset 0x109CF 10648 bytes