Malicious PDF — malware analysis report

Static analysis result for SHA-256 1344e9529e2a3cbe…

MALICIOUS

PDF

111.0 KB Created: 2021-03-10 05:03:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: ea486c61746395870ec046c4654d0a7c SHA-1: 177cfe6ded97d0969d34ea67d20194f8304f3c2c SHA-256: 1344e9529e2a3cbef8b62f108f330de7e0d0d2ae56f3a9638608651cee7fe3ef
94 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV. 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 clean score 0.1701

Heuristics 4

  • 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
  • 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://nipisod.ru/award?keyword=biblia+ortodoxa+bartolomeu+anania+pdf PDF link annotation
    • http://dawexefif.getenjoyment.net/nada_carmen_laforet_genero_literario.pdfIn PDF document text
    • http://healsmall.space/busiwizimiw0g97j.pdfIn PDF document text
    • http://erogan24.website/92214892495vsyp.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424011/normal_6047f04455fc9.pdfIn PDF document text
    • http://support-copyrighthelpservice-about.com/nespresso_uk_offer_codenbcs5.pdfIn PDF document text
    • http://lnstagram-helps-contact.com/2441723628542tct.pdfIn PDF document text
    • http://dkblogin-de.best/647585108366vu9u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367633/normal_5ffada35976d3.pdfIn PDF document text
    • http://dazolovegom.mygamesonline.org/41994222474.pdfIn PDF document text
    • http://nnorm-id.com/884285396861nogf.pdfIn PDF document text
    • http://investmag.org/vamarozupojuvo4wubq.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn 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://zorijefugixor.atwebpages.com/woxamipe.pdfIn PDF document text
    • http://bogazukutij.rf.gd/sajonabemajiji.pdfIn PDF document text
    • http://wedejilifolani.rf.gd/whatsapp_wedding_invitation_card_template_free.pdfIn PDF document text
    • http://wavanak.epizy.com/dexaxakorisomawu.pdfIn PDF document text
    • http://fizojigijuzad.epizy.com/fafsa_application_form.pdfIn PDF document text
    • http://feferabi.atwebpages.com/fujemofoz.pdfIn PDF document text
    • http://gidorewen.rf.gd/argumentation_schemes.pdfIn PDF document text
    • http://watenumedar.rf.gd/91982254237.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_007_off00018377.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x18377 20004 bytes
SHA-256: 8345423b10762b4a9f5fe434decc06938d1ca68c02b2b2998bca7c4c61bdd964
font_00_sfnt_off0001157e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1157E 5148 bytes
SHA-256: d24a1ab0eae3b9385576ce014b93e4c3a2de4f962a6d80c340274402f40e4b90
font_01_sfnt_off000126db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x126DB 3772 bytes
SHA-256: e2c7bb3c6d2fbc6b9680c858ce58af9e5cd0e4fbc18f33bdd2ad1d5654d08a87
font_02_sfnt_off0001327f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1327F 15788 bytes
SHA-256: e643e59d2982e8084331b42de8c2d8b3bd316cba980ad7365d8366f0b708195d
font_03_sfnt_off0001606c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1606C 16148 bytes
SHA-256: 07791bca69a51c448797d99ef1d903fbbca61cac79fb526a114da19d02886c03
font_04_sfnt_off00017577.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17577 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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