Malicious PDF — malware analysis report

Static analysis result for SHA-256 cee2183da98174f9…

MALICIOUS

PDF

85.9 KB Created: 2021-09-07 01:28:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-11
MD5: 3ed556211ae4745411a30ce3b6e90a5b SHA-1: a64f78a69d2b17d65c989b3a87c202b1a8aecaae SHA-256: cee2183da98174f910c3a8847ef4c22170cf258443fbb55618e88344979d33af
154 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as a phishing trojan and by an ML classifier as malicious. It contains numerous embedded URLs, many of which point to compromised WordPress sites or disposable hosting, suggesting a link farm designed to redirect users to malicious content. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a deliberate attempt to obscure the true destination through a network of links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5095

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://www.mds-horizons.com/upload/files/75166380235.pdf In PDF document text
    • https://baileyelectrical.services/wp-content/plugins/super-forms/uploads/php/files/4lvvevgvr6as90h62neqc5h7ub/japukef.pdfIn PDF document text
    • https://indianpowerliftingfederation.com/userfiles/file/99144286300.pdfIn PDF document text
    • http://fashioncenterpoint.com/wp-content/plugins/super-forms/uploads/php/files/308f6111ae2c3434592949703df509ba/zogofulilusozanoxobokawes.pdfIn PDF document text
    • https://maydongy.com/wp-content/plugins/super-forms/uploads/php/files/5c309u42j3kgirb42kjntcq6u4/62636789693.pdfIn PDF document text
    • https://villatoscana-pi.it/userfiles/file/24924766522.pdfIn PDF document text
    • http://hoondb.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608de81e78351---55004767962.pdfIn PDF document text
    • https://www.hemoroidklinigi.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608430863849c---7399699828.pdfIn PDF document text
    • http://villahetzwartepaard.nl/survey/userfiles/files/luwenusuremuw.pdfIn PDF document text
    • https://wildarium.com/ckfinder/userfiles/files/5394011799.pdfIn PDF document text
    • https://afd.me.uk/wp-content/plugins/super-forms/uploads/php/files/oebob03if6a6uaq0uii4ed5vsf/29800988858.pdfIn PDF document text
    • https://badrivishal.com/media/14151665255.pdfIn PDF document text
    • https://nasroglobal.com/userfiles/file/21051219102.pdfIn PDF document text
    • http://zzliuxue.com/upfile/file///sovewakive.pdfIn PDF document text
    • https://www.kiteschule-eckernfoerde.de/wp-content/plugins/formcraft/file-upload/server/content/files/160cd20740f861---51718659818.pdfIn PDF document text
    • https://aykutemlak.com/upload/ckfinder/files/lurobokitekaxudega.pdfIn PDF document text
    • http://a-kamen.com/userfiles/file/kasofigobe.pdfIn PDF document text
    • http://www.holderit.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b4cd357b52b---namipolaropunexa.pdfIn PDF document text
    • https://mission4recruitment.com/wp-content/plugins/formcraft/file-upload/server/content/files/1610c99c87e8a2---62274518573.pdfIn PDF document text
    • http://roomyab.ir/basefile/roomyabir/files/67903817799.pdfIn PDF document text
    • http://3xlove.com/uploadfile/file/50730930326.pdfIn PDF document text
    • https://www.northamericatalk.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f9a335cea7---79197244564.pdfIn PDF document text
    • http://aivieksteslaivas.lv/userfiles/file/sukevitexoluzonumopowi.pdfIn PDF document text
    • http://tano-cable.com/d/files/85871688800.pdfIn PDF document text
    • http://ipvoicenj.com/wp-content/plugins/formcraft/file-upload/server/content/files/16116f6c011dc3---tunakigonodovivakuxi.pdfIn PDF document text
    • https://htfcompact.com/wp-content/plugins/super-forms/uploads/php/files/f550a6993a7aa4e4c176dbc7438712c1/77141336765.pdfIn PDF document text
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/S30rS-6n6vg/uplcv?utm_term=le+livre+secret+du+vaudou+pdf+gratuitPDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11029 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_01_sfnt_off0001283b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1283B 21904 bytes
SHA-256: cc4707e49fa252a6a61d8a42ccb25dabb292e55ba5c5aece4d162cb2077b2a36