Malicious PDF — malware analysis report

Static analysis result for SHA-256 97056ffe32ed51de…

MALICIOUS

PDF

121.4 KB Created: 2021-04-05 16:45:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 0b67ad6718e51395099063450efaa3da SHA-1: f97172b10ccec9a2e77f4b795595fe15664fe048 SHA-256: 97056ffe32ed51defd768f2138b67e94a2c532e87925084f1eaf364762624293
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. 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 0.8686

Heuristics 5

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://pelibifir.ru/award?keyword=habanera+carmen+vocal+score+pdf PDF link annotation
    • https://wirorovikematu.weebly.com/uploads/1/3/1/0/131071137/komudoguji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368229/normal_6000c8b7652da.pdfIn PDF document text
    • https://kaledawuvilef.weebly.com/uploads/1/3/4/7/134727412/nepese.pdfIn PDF document text
    • https://faliroralomi.weebly.com/uploads/1/3/0/8/130874474/8886134.pdfIn PDF document text
    • http://fazejajogavu.medianewsonline.com/zisivobizodewazaru.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://finansi-7.online/xiliraxokuluwosukutnphta.pdfIn PDF document text
    • http://usene.xyz/tamorirutujafolokuvew2z00c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416500/normal_601d9d8b2b5af.pdfIn PDF document text
    • http://jesofoma.getenjoyment.net/tips_to_pass_nasm_cpt_exam.pdfIn PDF document text
    • https://pedumodab.weebly.com/uploads/1/3/1/6/131637036/ca586c03da26358.pdfIn PDF document text
    • http://sipataj.sportsontheweb.net/lelozokujof.pdfIn PDF document text
    • http://rodina38.ru/xupipibapowevazitifumaju7ayus.pdfIn PDF document text
    • https://pibigetikuke.weebly.com/uploads/1/3/5/3/135387636/1630544.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://87da31d5-d184-45e7-a456-0ad082c8bd65.filesusr.com/ugd/55e94a_ae4209f805704587ac359bcdebd980e4.pdf?index=trueIn PDF document text
    • https://91953a53-6f32-4f2a-9b2e-0f954541ff31.filesusr.com/ugd/dad90e_08d9621245a140629994447d78f1c89f.pdf?index=trueIn PDF document text
    • https://170a7d3c-74f0-42f5-9ead-98ae292a4922.filesusr.com/ugd/a18aa6_14ea2ee1c81440d888124ba41e2d6c8a.pdf?index=trueIn PDF document text
    • https://cb47f074-0476-4434-b381-5672a365cab8.filesusr.com/ugd/c46c8a_6458e5d7f96d47458cd3ecfcb77f9096.pdf?index=trueIn 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
font_00_sfnt_off000198cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x198CC 2972 bytes
SHA-256: 0bf9469f6cbf64c0badb18945d2c2eb4c7a4e472e7aacda42aec409c4e2fe86d
font_01_sfnt_off0001a34f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1A34F 5120 bytes
SHA-256: 5cf920a0ffac1f590bda92f6383901408f4b9e83f521fc8abfeb3ce6eacfef15
font_02_sfnt_off0001b48d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B48D 13456 bytes
SHA-256: c09b8b0208cf56a9c45206d997f12ea56fdbe9520b6bed4b0ed4284b1001b046

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