Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ffce40a2eda5045…

MALICIOUS

PDF

78.7 KB Created: 2021-03-19 18:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 99bc818f5647ecbb341d3d44db20538b SHA-1: 1786c092f870505beaddd46fc418ee449c466e7f SHA-256: 8ffce40a2eda504539fb18d5e0131502639ea8c86fc0bdc474b1dddd13a79457
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://bologen.ru/wix?keyword=gmat+critical+reasoning+bible+pdf PDF link annotation
    • https://cdn.sqhk.co/rujoremebi/iSBWhic/17474981336.pdfIn PDF document text
    • http://fb-pageunderreview.com/pepatovakutajenolifonij87htq.pdfIn PDF document text
    • http://axecheat8.xyz/how_to_make_a_budget_on_quickenj3p71.pdfIn PDF document text
    • https://cdn.sqhk.co/monasomeb/Egihahb/61033901113.pdfIn PDF document text
    • http://biomaniks.website/toyota_camry_2018_price_in_pakistan_olxg76p2.pdfIn PDF document text
    • http://consumer-data-protection-bureau.com/my_time_at_portia_best_husband7skd2.pdfIn PDF document text
    • http://com-signto5.xyz/counter_terrorism_unit_salaryyetg4.pdfIn PDF document text
    • http://summerita.fun/97965947953hvn8l.pdfIn PDF document text
    • http://biomanua.website/escudo_de_la_bandera_de_costa_rica_actual7gu0h.pdfIn PDF document text
    • http://pristav.pro/kofegex510z7.pdfIn PDF document text
    • http://instapriz.website/sears_lawn_mower_parts_canadajdj87.pdfIn PDF document text
    • http://itverys.space/crisp_dm_framework5og67.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nibejodawugizex.rf.gd/kelalazeketawalate.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwenoxuzasila/thompson_center_renegade_50_cal_barrel.pdfIn PDF document text
    • http://daxararudivoxik.rf.gd/harry_potter_book_1_trivia_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/bubodeliza/50712238689.pdfIn PDF document text
    • https://s3.amazonaws.com/bulolimepol/blum_clip_top_blumotion.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/gameshark_2_ps2_iso.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/41678227950.pdfIn PDF document text
    • https://s3.amazonaws.com/xiwevitox/birthing_from_within_free.pdfIn PDF document text
    • http://figiwulowiwumoj.epizy.com/30326278191.pdfIn PDF document text
    • http://damedosa.rf.gd/information_report_about_pandas.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/abandono_afetivo_psicologia.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_off0000e7b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7B8 5432 bytes
SHA-256: 1d81b73101345529942402ba44d2382500290a3765c972a505705034b4b4508e
font_01_sfnt_off0000fa10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA10 10896 bytes
SHA-256: e04ca68c4e82128048eb3bc86c1d8510fecf9947b89c36660073d1f40993e5fc
font_02_sfnt_off00011f24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F24 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f

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