Malicious PDF — malware analysis report

Static analysis result for SHA-256 707c4efa921c0356…

MALICIOUS

PDF

160.0 KB Created: 2021-04-21 14:17:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8509a7dcad462810cc9296d4761704eb SHA-1: 5b38c95ddd1a8fd5604d66d65c7f731b413d9ea7 SHA-256: 707c4efa921c0356a67c13596a423e855681c033e87228609c78f0602ef9d507
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/strik?utm_term=libro+sep+historia+5+grado+espa%25C3%25B1ol PDF link annotation
    • https://cdn.sqhk.co/gefimiwotux/gdiiqZ0/dr_marty_freeze_dried_dog_food_amazon.pdfIn PDF document text
    • https://pivatebovuwize.weebly.com/uploads/1/3/0/7/130775292/d6edd9.pdfIn PDF document text
    • https://parukiwodisurup.weebly.com/uploads/1/3/4/4/134455528/sajexupu.pdfIn PDF document text
    • https://tanafojapazikop.weebly.com/uploads/1/3/4/5/134576724/titexepid.pdfIn PDF document text
    • https://tekuxarutupun.weebly.com/uploads/1/3/0/7/130775258/1795435.pdfIn PDF document text
    • https://dexugagemer.weebly.com/uploads/1/3/4/7/134715037/6e5ab639cea943.pdfIn PDF document text
    • https://saxunada.weebly.com/uploads/1/3/4/8/134865385/zaxugivul.pdfIn PDF document text
    • https://zakikubefetopu.weebly.com/uploads/1/3/2/6/132696201/20d99cf94d.pdfIn PDF document text
    • https://cdn.sqhk.co/nasanoroge/sQjbDgh/sad_ringtone_download_tik_tok.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sulorunak.rf.gd/power_vs_force_book_online.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/keluvozatekukesolula.pdfIn PDF document text
    • http://zafafon.epizy.com/94979025071.pdfIn PDF document text
    • https://s3.amazonaws.com/woxewiwupir/sony_hbd-tz140_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/la_foule_lyrics_edith_piaf.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/human_rights_watch_report_on_kashmir.pdfIn PDF document text
    • https://s3.amazonaws.com/mejados/gavevipojuwafekiki.pdfIn PDF document text
    • http://xugivazule.rf.gd/fantastic_beasts_and_where_to_find_them_film_3.pdfIn PDF document text
    • https://s3.amazonaws.com/gusule/dreamweaver_tutorials_for_beginners_free.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_off0002263e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2263E 1792 bytes
SHA-256: 40f6fc42baf73337c2ecd0987976edc706ba3f24844c7d0c98b4800c23bbc686
font_01_sfnt_off00022ee9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x22EE9 5636 bytes
SHA-256: 54cc34ae9902a5de29fbbc1f42ffd2c342e3b8d03224c193fee3232aedd648cd
font_02_sfnt_off000241c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x241C5 14352 bytes
SHA-256: 22efb3f5a2b00081805181a03f78ac0e1f42662e0940e44f7acff438b9031e19

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