Malicious PDF — malware analysis report

Static analysis result for SHA-256 46f2f169361812f6…

MALICIOUS

PDF

86.1 KB Created: 2021-03-13 23:54:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 60c7bed2d0e42075dadf195fb1df518d SHA-1: 5fedcbae9700849262f8d3136e1b8bdc5a7eb05f SHA-256: 46f2f169361812f6e9404e17fb278719fff9195b5f4823bb6db4a76d0f2d1555
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9993

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 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
  • 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://ponafet.ru/wix?keyword=guild+ranks+wow PDF link annotation
    • https://cdn.sqhk.co/fomezawelud/BhahhTA/dan_the_man_3_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/sawapevodef/9jjggc8/solozifim.pdfIn PDF document text
    • https://cdn.sqhk.co/wodelaganav/jca7Ohj/9683766496.pdfIn PDF document text
    • https://cdn.sqhk.co/salenasova/gjPjiie/24255735204.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475875/normal_5ffff964c75ab.pdfIn PDF document text
    • http://zumewidife.mygamesonline.org/472314072.pdfIn PDF document text
    • http://novazeku.mygamesonline.org/acidos_organicos_e_inorganicos.pdfIn PDF document text
    • https://cdn.sqhk.co/rajosibakulu/gjamYzF/88303143088.pdfIn PDF document text
    • https://cdn.sqhk.co/losomilodip/9gjsgih/disorifubajubojivosixo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474999/normal_5fdb5e359695b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4464861/normal_5fef7df789859.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490250/normal_5ffa5d270e2d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481065/normal_6046a80430a02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387412/normal_603c0abd5ec13.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383131/normal_5fd93d782604e.pdfIn PDF document text
    • http://nogurufegu.mygamesonline.org/lamborghini_gallardo_price_trends.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476564/normal_600fc82b7c762.pdfIn PDF document text
    • https://cdn.sqhk.co/tokarikadez/tZhcjcf/19145834784.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380692/normal_60289ec8746cb.pdfIn PDF document text
    • http://fexevewuli.mypressonline.com/3639928894.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea0488dc-4c9f-4221-bb20-7e8e3742e583/redefazat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/68cc3442-5de1-4ce6-9de5-f1c5e98ba1df/learn_how_to_trade_forex_south_africa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4eb88648-e7ce-494e-8d13-adf71672deb3/62749890435.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bbf9abf1-2f11-4a67-af1f-6447d2964963/judenomaxuxes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bad6b5fd-5c6a-4400-8feb-700114d10e82/what_does_the_latin_word_septuagint_mean.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000114e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114E8 5004 bytes
SHA-256: a89ef5da2acd050361b83ba5bed9d4b42353949b8d89394f73001a93e7bcd298
font_01_sfnt_off0001260d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1260D 11136 bytes
SHA-256: 161dc53195b1c77f140eb6e87fc99aadf46aa70bd96b126b723fbaf3c9a2e5f5

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