Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e4327ecc4acea56…

MALICIOUS

PDF

65.1 KB Created: 2021-02-26 11:06:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-14
MD5: eb0f7dec421fb98b203af2de19e7ec19 SHA-1: 245e8f7b29afd3148b63dc41c658c834ead34aa1 SHA-256: 8e4327ecc4acea56fb3ef3ae1c9c8a4680c68c3bd307973a2f24357aa16b847c
94 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating an external URI and is flagged as malicious by an ML classifier and ClamAV. The embedded URL, https://pelibifir.ru/award?keyword=korean+language+translation+in+english+alphabet, suggests a phishing or social engineering lure. While no scripts were explicitly extracted, the PDF structure and the presence of external links are indicative of a malicious document, likely intended to redirect the user to a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9088

Heuristics 3

  • 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
  • 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=korean+language+translation+in+english+alphabet PDF link annotation
    • http://bitcoins-profits.com/how_computer_networks_works_step_by_steph8ovx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415526/normal_5fcbd6b397d3c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403428/normal_5ff53fdd7fec5.pdfIn PDF document text
    • http://optamorem.com/33580337253vjzme.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490266/normal_602cfa69aa0c8.pdfIn PDF document text
    • http://gramnews.xyz/liribifokamizukamew3juv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454043/normal_5fc7f0bfb756d.pdfIn PDF document text
    • http://like-store.site/unlock_code_for_samsung_galaxy_s5_freeiipby.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/puretulenuza/12431090917.pdfIn PDF document text
    • https://s3.amazonaws.com/rilexazejuzovep/49032783409.pdfIn PDF document text
    • https://s3.amazonaws.com/duzexefemosaxe/42001592307.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/secret_video_recorder_free_apk.pdfIn PDF document text
    • http://fulariponazaget.epizy.com/oklahoma_cdl_tanker_practice_test.pdfIn PDF document text
    • http://wedagavuvux.epizy.com/nuxodadekiwinoxo.pdfIn PDF document text
    • https://s3.amazonaws.com/bamepofewalada/liquidation_value_appraisal_report.pdfIn PDF document text
    • https://s3.amazonaws.com/wunupalezozerud/sc_st_prevention_of_atrocities_act.pdfIn PDF document text
    • https://s3.amazonaws.com/falufusu/grandstream_ht802_auto_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/kugelilizibuwum/what_is_dog_man_book_10_called.pdfIn PDF document text
    • https://s3.amazonaws.com/sabegokek/67836336787.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3B3 5192 bytes
SHA-256: b8c09ec4d4aef776febd8f5610902da6b1298b40db9d0a169cc1184da0bfa5a7

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