Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e4454ab292e2a09…

MALICIOUS

PDF

256.3 KB Created: 2021-01-18 17:16:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 699569001703b130705fc29066740a43 SHA-1: eb574beba5b87b84655c0ab963004f73e74f71d7 SHA-256: 7e4454ab292e2a0996e74ff61793375472996b2bb056463269d0d02c917bd707
104 Risk Score

Malware Insights

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

The PDF document contains an embedded URI that points to a suspicious domain, and ClamAV detected it as a phishing trojan. The document body, though heavily obfuscated, contains language suggesting urgency, which is a common lure in phishing attacks. The presence of external URIs and the ML classifier's high confidence score indicate a malicious intent to redirect the user to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9964

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffset.ru/123?utm_term=language+iraq+meaning PDF link annotation
    • https://cdn.sqhk.co/bibilofefi/ibgikhh/48548013385.pdfIn PDF document text
    • https://nomalepizu.weebly.com/uploads/1/3/1/3/131398516/pirawitafuzi.pdfIn PDF document text
    • https://basuxebuj.weebly.com/uploads/1/3/1/3/131379820/7177829.pdfIn PDF document text
    • https://pidadilux.weebly.com/uploads/1/3/4/6/134666204/gezumuwavizegekis.pdfIn PDF document text
    • https://site-1255859.mozfiles.com/files/1255859/redigarusinuzabo.pdfIn PDF document text
    • https://pavofadibap.weebly.com/uploads/1/3/4/3/134370944/xazositogopatotorije.pdfIn PDF document text
    • https://cdn.sqhk.co/sijiposago/jiiA4Tu/play_word_battle_online.pdfIn PDF document text
    • https://site-1180945.mozfiles.com/files/1180945/farm_to_table_bay_ridge.pdfIn PDF document text
    • https://rowusebejaron.weebly.com/uploads/1/3/1/6/131637242/gavamoraz.pdfIn PDF document text
    • https://fumirufax.weebly.com/uploads/1/3/1/8/131856188/razenatumofe.pdfIn PDF document text
    • https://site-1173528.mozfiles.com/files/1173528/planet_of_cubes_survival_craft_mod_apk.pdfIn PDF document text
    • https://site-1174531.mozfiles.com/files/1174531/equifax_credit_report_free_annual.pdfIn PDF document text
    • https://cdn.sqhk.co/woravejafeto/giSfjf3/gewejelamototasefime.pdfIn PDF document text
    • https://mivubifazexaj.weebly.com/uploads/1/3/4/3/134381565/f69d2d0.pdfIn PDF document text
    • https://fasukawoj.weebly.com/uploads/1/3/1/4/131453618/2d620.pdfIn PDF document text
    • https://site-1178114.mozfiles.com/files/1178114/75076999780.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • http://scripts.sil.org/OFLIn 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
stream_008_off0003cf1b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3CF1B 20984 bytes
SHA-256: 35d25a5e319a621231356cf4bf3ab1b40a39a0eea63d759bc11b35ce11ab4cd0
font_00_sfnt_off00038bfe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x38BFE 4860 bytes
SHA-256: 6e20e8dd292c8095af29c3ea6ee7c18ed2c81e2add8642325586782cb1ac032e
font_01_sfnt_off00039c76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x39C76 16600 bytes
SHA-256: 94989466443af7861ddca2213563ac7be91b9f24a353c3b03c74ac37b59ac3d5

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