Malicious PDF — malware analysis report

Static analysis result for SHA-256 e93b0a7024031980…

MALICIOUS

PDF

94.9 KB Created: 2021-02-15 03:48:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 695df5b5003a7323c2a1a66d8fa94395 SHA-1: 9dcb9881643122f8e8cc1bb5ad9c0736f320d3aa SHA-256: e93b0a7024031980f186b0cc9c20c73ddc1c68cf2f935e69e8dfc95976a50093
186 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 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 0.9997

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://jottigo.ru/wix?keyword=this+land+is+your+land+canada PDF link annotation
    • https://tawedituja.weebly.com/uploads/1/3/4/8/134864040/21b3af1a8abc.pdfIn PDF document text
    • https://cdn.sqhk.co/javomekoru/QUCHif8/21558936424.pdfIn PDF document text
    • https://cdn.sqhk.co/kewudomavave/hhcwhhT/toonnel_raiders_arcade_challenges.pdfIn PDF document text
    • https://sukigemanewa.weebly.com/uploads/1/3/2/6/132681928/totixuvipojazuv-bejodaxezu.pdfIn PDF document text
    • https://nefovevetovuj.weebly.com/uploads/1/3/5/3/135390951/6488608.pdfIn PDF document text
    • https://cdn.sqhk.co/xamitarerivu/KdgcjiM/polaroid_originals_onestep_2.pdfIn PDF document text
    • http://fruit-italy.space/27535356963qyh17.pdfIn PDF document text
    • https://pabametutib.weebly.com/uploads/1/3/5/3/135317572/4346048.pdfIn PDF document text
    • http://natorg.fun/tamubukal7jo2.pdfIn PDF document text
    • https://fasipibopokele.weebly.com/uploads/1/3/6/0/136096953/xefumuxibirapizurimi.pdfIn PDF document text
    • https://jazigibebegada.weebly.com/uploads/1/3/1/6/131606339/f5edb7c1fde0e57.pdfIn PDF document text
    • http://nowatora.22web.org/fejanirabivemuzokeduru.pdfIn PDF document text
    • https://sekitajed.weebly.com/uploads/1/3/1/3/131383533/18b27.pdfIn PDF document text
    • https://bopunesarikimar.weebly.com/uploads/1/3/1/4/131453984/togimelasoxawam_vanezefedari_kapomuxoki_tupudukoro.pdfIn PDF document text
    • https://cdn.sqhk.co/vivutazawi/hnijzjh/36178151851.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://zitejilid.epizy.com/aqours_third_live.pdfIn PDF document text
    • http://jigikox.rf.gd/rijiruropilokataguduma.pdfIn PDF document text
    • http://renodiwug.epizy.com/squint_case_sheet.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12442 4760 bytes
SHA-256: f99fc96b5d92634c8a7cf27c7260127972fc64da6e3c6293986196822e67a5ec
font_01_sfnt_off00013447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13447 14032 bytes
SHA-256: 4f2896fe1ae561b81d3c23860285f272b1575bf5b4fae43fcb5b4b5ebb345149
font_02_sfnt_off00016054.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16054 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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