Malicious PDF — malware analysis report

Static analysis result for SHA-256 06bbb6a39b883c31…

MALICIOUS

PDF

68.3 KB Created: 2021-02-17 10:04:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 84a23a89cee5d6141d3830e03a84aa17 SHA-1: d0b0d7055758e7570ea88792a78c453342f6e33c SHA-256: 06bbb6a39b883c316ff34dd6e20b538a231487542e9a5dbfa081389d46acbe42
186 Risk Score

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.
  • 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://maypoin.ru/wix?keyword=christian+academy+of+greater+st.+louis+basketball PDF link annotation
    • http://medway24.com/vans_burgundy_old_skool_platform_trainers6c8tj.pdfIn PDF document text
    • http://lazerepil.site/83848056403y1viy.pdfIn PDF document text
    • http://ejinaya.com/wiwuporarazekewufepqpho.pdfIn PDF document text
    • http://shtangye.xyz/guwoxipozodilotalatepugie0orm.pdfIn PDF document text
    • https://duxoberadu.weebly.com/uploads/1/3/4/7/134718286/2924dcfe19.pdfIn PDF document text
    • https://nezivubu.weebly.com/uploads/1/3/1/3/131384481/2425814.pdfIn PDF document text
    • http://umkatrade.ru/mixed_tenses_exercises_intermediate_level_with_answersafpf0.pdfIn PDF document text
    • https://senemoribut.weebly.com/uploads/1/3/4/7/134703027/7974507.pdfIn PDF document text
    • https://govuvafokixer.weebly.com/uploads/1/3/1/6/131607022/losigi_resipufutes.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/gcgejgl/35998101711.pdfIn PDF document text
    • http://atlas-copco.su/mepetiwotubugutibzijbn.pdfIn PDF document text
    • https://pagiburefi.weebly.com/uploads/1/3/4/1/134108706/kexamaxemuzod_dekuxizox_zitixirewoma.pdfIn PDF document text
    • https://zelubofiwexuf.weebly.com/uploads/1/3/4/2/134234915/jajitelaro.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/jeduzizonox/difineve.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_off0000cd74.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD74 5676 bytes
SHA-256: 44d74c1c786bc028c44389721ff9153e8759a4558401abd6ee87e0fec0ab217c
font_01_sfnt_off0000e09d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09D 10472 bytes
SHA-256: eeb0605309f8b9ca11d49e0f3e47817061795b81aca64a20f68d3e9740ad7cbb