Malicious PDF — malware analysis report

Static analysis result for SHA-256 491549ccf40d125e…

MALICIOUS

PDF

81.5 KB Created: 2021-02-27 06:27:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 4e5585efe90e9d93a095acc97c55f1db SHA-1: 27f540e2481e7f98b64ce27ce7997696548654e1 SHA-256: 491549ccf40d125e508118ca046260a40a6a158af88d9cd07c037ad85fcf390a
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 0.9998

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://midufefew.ru/123?utm_term=learn+arabic+calligraphy+step+by+step PDF link annotation
    • http://xtreme-sport.ru/56256351915c9vnt.pdfIn PDF document text
    • http://rubka.space/taps_to_riches_money_hack_apk6y4hu.pdfIn PDF document text
    • http://covidcapsule.world/6176880395o9g14.pdfIn PDF document text
    • http://springtea.space/36162843744s9x8g.pdfIn PDF document text
    • http://wiinorama.space/98552006469givt9.pdfIn PDF document text
    • http://titanovyi-filtr.ru/aarakocra_5e_statsugygm.pdfIn PDF document text
    • http://pagebake.com/daraterubemak3c.pdfIn PDF document text
    • http://javebamugizal.66ghz.com/nazefuritutelizop.pdfIn PDF document text
    • http://katermore.ru/26008471521pepv0.pdfIn PDF document text
    • http://mon-cmbretagne.best/damowolaxitay95de.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/ninasivol/vacuna_neumococica.pdfIn PDF document text
    • https://s3.amazonaws.com/satuja/50721355700.pdfIn PDF document text
    • http://kenugaderagof.epizy.com/ansible_copy_template_overwrite.pdfIn PDF document text
    • https://s3.amazonaws.com/falejogajir/fundamentals_of_molecular_virology.pdfIn PDF document text
    • http://xuwugufufokiti.epizy.com/lojuzuki.pdfIn PDF document text
    • http://winutuforugen.rf.gd/58646763047.pdfIn PDF document text
    • https://s3.amazonaws.com/limepusotanal/sibaboxabagemugibemurix.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ed31.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED31 5380 bytes
SHA-256: 452a9b23bf1333245e42c29f38b940dadf748ab694ffaca9770ae84fc715984e
font_01_sfnt_off0000ff7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF7E 10812 bytes
SHA-256: 544d86fa69f85656ef6885fac3a2ba11f76b6f54310eea1484470e0e9a29626e
font_02_sfnt_off0001236b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1236B 16152 bytes
SHA-256: 7db1e589d26c71ed62afaa099772940e19bd96ce1a54b937782d810ff1551a5d

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