Malicious PDF — malware analysis report

Static analysis result for SHA-256 61e229bb5674cda6…

MALICIOUS

PDF

77.8 KB Created: 2021-03-17 04:14:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-20
MD5: 06a556f06409f637186652b53a78c5bc SHA-1: 1fd9c31a86cab5e9a061dfb82746426b4ed2d485 SHA-256: 61e229bb5674cda6d644b5ca3d83896322f412aac90edc20d6ead15872eb97cb
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL and document body suggest a phishing lure related to technical documentation, likely to trick users into downloading further malicious content. No scripts were extracted, but the presence of external URLs points to a downloader or phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://nipisod.ru/award?keyword=thyristor+protection+circuit+pdf PDF link annotation
    • https://tujurexi.weebly.com/uploads/1/3/4/7/134743655/1ccf3ca7283.pdfIn PDF document text
    • http://hookup153.space/50045392000glows.pdfIn PDF document text
    • http://eurosett.net/what_are_3_examples_of_alliterationunmfi.pdfIn PDF document text
    • http://yeswins.space/gebofababapedodanowas3cvvg.pdfIn PDF document text
    • http://dirtygirl.fun/jobuba14zfu.pdfIn PDF document text
    • http://rorezorejadij.iblogger.org/gekidetujukifatenuj.pdfIn PDF document text
    • http://presentinsta.site/ximofavogoleseraguruworu7wnat.pdfIn PDF document text
    • http://xtw2.club/sniper_elite_4_shoulder_aimed_kills_xbox_onewirn3.pdfIn PDF document text
    • http://gnfcns.info/192386547639h8x8.pdfIn PDF document text
    • https://poxolegap.weebly.com/uploads/1/3/1/0/131069824/ripobemilo.pdfIn PDF document text
    • http://mnogolidov.xyz/super_smash_bros_ultimate_enhanceable_spiritscd0b3.pdfIn PDF document text
    • http://cetapp.xyz/change_din_hd_video_songzfc43.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/rikolesafuwofar/gogaxerinijoderagunareku.pdfIn PDF document text
    • http://bikutuvuxaxixo.epizy.com/menazokufonajetone.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/l_t_infotech_annual_report_2017.pdfIn PDF document text
    • http://lavavoju.rf.gd/nupivulozufilovefer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ad84abf-6722-4c9b-b46c-1bb7ab1a98ab/69042734542.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/ronamenesurowipebuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/59e91839-4491-4f5e-846a-53b5ce4b4bdd/information_technology_specialist_1_jobs.pdfIn PDF document text
    • https://s3.amazonaws.com/jebupofedijakuk/fezijumimetajolimi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa5754be-acc6-44a7-9fd2-673672d88d65/the_science_of_mind_management_by_swami_mukundananda_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xuzed/genie_wet_dry_vac_owners_manual.pdfIn PDF document text
    • http://fedatowuka.epizy.com/75659942768.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_off0000f165.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF165 5052 bytes
SHA-256: 8b27b612817603fc5b0fae7845c91f4222c41b7e9ec4b98f09f84150d1e36a4d
font_01_sfnt_off0001029b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1029B 10916 bytes
SHA-256: b7a7c902d03a4ec5519b3a6a3a5f0a7d2c0cd5fde38c0f0b6f243f693d5a1e94

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