Malicious PDF — malware analysis report

Static analysis result for SHA-256 93562133f38cffed…

MALICIOUS

PDF

78.1 KB Created: 2021-02-15 02:42:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: bce5091e07c67046cf5c4554947b90d0 SHA-1: ec6ac00ec70157fe17810666de4e0bed3aa40e43 SHA-256: 93562133f38cffedf6b7b9184335114557d7b118046b78d16a5bffb1aa03031c
164 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. It uses an urgency-based lure. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/123?utm_term=roundup+quick+pro+6.8+lbs PDF link annotation
    • https://muwirejevom.weebly.com/uploads/1/3/1/8/131857435/vopewowizefowon-muxewuvewako-kasidatuw.pdfIn PDF document text
    • http://dimabigeteg.iblogger.org/mijovoj.pdfIn PDF document text
    • https://dotawipe.weebly.com/uploads/1/3/5/3/135323210/6427387.pdfIn PDF document text
    • https://xokekujederal.weebly.com/uploads/1/3/0/9/130969763/e26c2b.pdfIn PDF document text
    • https://jorosovepi.weebly.com/uploads/1/3/4/7/134706332/gagosojevurox_tutafox.pdfIn PDF document text
    • http://jijufik.22web.org/eglantine_school_report.pdfIn PDF document text
    • https://cdn.sqhk.co/subilikiwi/E9hehj8/oklahoma_football_schedule_2017.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/lizuseguwix/android_animator_settarget.pdfIn PDF document text
    • http://nobegik.rf.gd/compass_app_free_for_iphone.pdfIn PDF document text
    • http://xibiwoziveva.epizy.com/ch_10_maths_class_9.pdfIn PDF document text
    • https://s3.amazonaws.com/vudivuzakal/pizijeziwotaxu.pdfIn PDF document text
    • http://xegukamadoso.epizy.com/39364842615.pdfIn PDF document text
    • http://xenivut.epizy.com/arcane_mage_guide_8._2.pdfIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/rulexenasewoxevuxu.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/bapuwojovapujesapojiwenu.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f0e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E5 5576 bytes
SHA-256: c5fe462b2aa68957cb38e0d94afc8270a6f3fa6f84c87a944678ac0e381c3a06
font_01_sfnt_off000103ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103EF 11340 bytes
SHA-256: dfd32fdab10333246668587f27b10fa5b520b87cfc5261764dc68695577d9448

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