Malicious PDF — malware analysis report

Static analysis result for SHA-256 79c78aa19afa451b…

MALICIOUS

PDF

83.6 KB Created: 2021-01-19 02:24:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 526aed432a3f5ee957242e082b2f6d37 SHA-1: 865feefc7b74dadb5ce35233dc66c3ad239b5db3 SHA-256: 79c78aa19afa451bf9238ec79dfaf63d723748303deb86350f44609f67118392
154 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 routes users through malicious redirector infrastructure. 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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://traffmen.ru/123?utm_term=diy+car+air+freshener+with+essential+oils In PDF document text
    • https://site-1257659.mozfiles.com/files/1257659/nasabawo.pdfIn PDF document text
    • https://wumaluko.weebly.com/uploads/1/3/4/7/134716396/8241699.pdfIn PDF document text
    • http://roralopokuzej.22web.org/gepat.pdfIn PDF document text
    • https://cdn.sqhk.co/rawerusiwala/jhIedic/fimap.pdfIn PDF document text
    • https://veraweno.weebly.com/uploads/1/3/0/7/130739577/70a25ce.pdfIn PDF document text
    • https://temizugejifo.weebly.com/uploads/1/3/1/3/131384470/konazalenifagogesuk.pdfIn PDF document text
    • https://site-1178171.mozfiles.com/files/1178171/gopi_doll_fashion_salon_games_online.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/ivSgg3P/kipejazejisedifok.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/5f79a897b57840.pdfIn PDF document text
    • https://rorefodelubo.weebly.com/uploads/1/3/1/4/131452934/99995a.pdfIn PDF document text
    • https://cdn.sqhk.co/zutijujes/iibjcji/smash_bandits_racing_apk_mod.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/zonebon/tuzagonanudinedafixabajiz.pdfIn PDF document text
    • https://s3.amazonaws.com/supefujoxopubu/xiwovusunadazadun.pdfIn PDF document text
    • https://s3.amazonaws.com/jevedijadiki/list_of_ethical_principles.pdfIn PDF document text
    • http://gabamad.epizy.com/furniture_design_software.pdfIn PDF document text
    • http://vapasiwivomod.epizy.com/xisagopaxosugogukevofapi.pdfIn PDF document text
    • https://s3.amazonaws.com/gozilum/damiwale.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_off00010a8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10A8E 5160 bytes
SHA-256: 437f27eff14f524bde3938f31841d9822a1e5bff0d24f88e5056a8b153d8bd61
font_01_sfnt_off00011c3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C3C 10672 bytes
SHA-256: 442106282cf6bf786e017da71833402431da73277d35541412b4cbcb5155ee4d

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