Malicious PDF — malware analysis report

Static analysis result for SHA-256 70d0e0b890ccca14…

MALICIOUS

PDF

96.0 KB Created: 2021-10-21 11:13:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-11-25
MD5: b98ac8519a7c386c46c83c130cf643da SHA-1: 3efcfcf94bc0ace7da7a5974e4ff32a45dec6ed6 SHA-256: 70d0e0b890ccca14f584033f14fce1def9e752d696f4aaf8e7d8b26bcceb8b75
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as a malicious PDF by ClamAV and an ML classifier. It contains numerous embedded URLs, many of which point to suspicious domains and are likely used to redirect users to malicious sites. The PDF_SEO_DISPOSABLE_LINK_FARM heuristic indicates a pattern of link farming on disposable hosting, suggesting an attempt to obscure the true malicious destination. No scripts were extracted, but the overall structure and URL distribution strongly suggest a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5394

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://orcasproje.com/userfiles/file/sunixifoxu.pdf In PDF document text
    • http://homokkepek.hu/editor_up/vizosevibimeka.pdfIn PDF document text
    • https://big-affaires.com/img/pics/files/63250009717.pdfIn PDF document text
    • http://xn--80aesyq.xn--p1acf/files/file/70229585927.pdfIn PDF document text
    • https://ww150005.linebot.net/upfile/files/20210919035054.pdfIn PDF document text
    • http://veszpremlizards.hu/_user/file/91560046620.pdfIn PDF document text
    • http://www.yemany.com/yemfiles/files/selutinil.pdfIn PDF document text
    • https://przygodanaukrainie.pl/admin/ckfinder/userfiles/files/xifowepodisomodexut.pdfIn PDF document text
    • http://elektromig.pl/userfiles/file/durig.pdfIn PDF document text
    • http://cheapmarkt.com/userfiles/file/merazekidiwulisegugidarul.pdfIn PDF document text
    • https://www.etbsupplies.com/wp-content/plugins/formcraft/file-upload/server/content/files/161381a2b93777---81968845101.pdfIn PDF document text
    • https://rocha.pt/userfiles/file/61430635963.pdfIn PDF document text
    • http://learnazia.com/fck/imagesfile/8801510173.pdfIn PDF document text
    • https://odontologosmalca.com/images/userfiles/file/47784030237.pdfIn PDF document text
    • https://amadesafar.ir/basefile/amadesafarir/files/17974405661.pdfIn PDF document text
    • http://vetsnab32.ru/userfiles/file/setujerudot.pdfIn PDF document text
    • http://feedproxy.google.com/~r/MbOu/~3/TxADE9PCSUw/uplcv?utm_term=the+primary+producer+in+an+ecosystem+arePDF link annotation
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001238d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1238D 10912 bytes
SHA-256: 3b96c150bba2155ffb8bd7d066d5fb32fd56ea2a50703a5e0172bb9417c4dd1d
font_01_sfnt_off00013cb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13CB2 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1
font_02_sfnt_off000154c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x154C4 18936 bytes
SHA-256: ee1f78f80bd20c2eac88a9a56007f77e15396bf1f5993237aee7a14f0be98f98

Open this report in the interactive analyzer, or submit your own file for analysis.