Malicious PDF — malware analysis report

Static analysis result for SHA-256 c20c8bdb0cbe92aa…

MALICIOUS

PDF

69.2 KB Created: 2021-09-20 10:15:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-27
MD5: 1d1715ede6ae93bccb46a59d87141521 SHA-1: 5f200ed8fb06dd8fd57d08dd36e7aadfdabe8ee3 SHA-256: c20c8bdb0cbe92aa6512c94895b3a0a5b42e8958aa231229bbe5a8a82b74338b
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs, many of which are hosted on disposable domains and appear to be part of a link farm. Heuristics indicate this is a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded links strongly suggest it's designed to lure users to malicious sites, likely as a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5455

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://oniceh.ru/uplcv?utm_term=i+would+appreciate+synonym PDF link annotation
    • http://dlevitin.ru/fck_editor_files/files/wasakilim.pdfIn PDF document text
    • http://retrolondontees.com/userfiles/file/suxomisenokekiwal.pdfIn PDF document text
    • http://www.trackls.com/application/ckeditor/ckfinder/userfiles/files/fewamifabejagasupe.pdfIn PDF document text
    • https://durimawar.com/contents/files/96746679216.pdfIn PDF document text
    • https://www.passion-rnd.com/upfile/files/2021/09/06/fepeka.pdfIn PDF document text
    • http://iltorg.ru/upload/file/jusosisesifikela.pdfIn PDF document text
    • https://portecitadelle.portecitadelle.ca/ckfinder/userfiles/files/10434338169.pdfIn PDF document text
    • https://foodsafebox.com/ckfinder/userfiles/files/61028581555.pdfIn PDF document text
    • http://allineers.morefriendship.com/upload/files/33296578316.pdfIn PDF document text
    • http://3gr-group.com/ci/userfiles/files/jukolaru.pdfIn PDF document text
    • https://hojoairport.com/images/file/61924713661.pdfIn PDF document text
    • https://asaptransfers.co.uk/wp-content/plugins/super-forms/uploads/php/files/f5808c0af5a6284e6d15aec7fcad2fee/kixaberopepuxuramomexex.pdfIn PDF document text
    • https://nothingbutsafetyglasses.com/userfiles/file/11348139437.pdfIn PDF document text
    • https://thietbivesinhsonhoa.com/webroot/img/files/wesoxovubodej.pdfIn PDF document text
    • http://superbarter.sk/media/file/xigutitozapajem.pdfIn PDF document text
    • http://bjerkelunden.org/content/files/userfiles/file///25832277819.pdfIn PDF document text
    • http://agisma.ru/files/pages/files/4676529425.pdfIn PDF document text
    • http://otczenacts.com/media/files/48241799548.pdfIn PDF document text
    • http://peter-scherer.de/userfiles/file/24894507210.pdfIn PDF document text
    • http://baovekhucongnghiep.com/upload/files/mujiloparoridoranodefavo.pdfIn PDF document text
    • http://spalovnachemolak.sk/userfiles/file/gokanok.pdfIn PDF document text
    • http://tks-forever.com/upload/2021/09/08/file/kukone.pdfIn PDF document text
    • 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_off0000cc50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC50 10924 bytes
SHA-256: e1ad93196495038632a6babe48e394acbf251de8a1b1eb661b96857daf5af722
font_01_sfnt_off0000e5a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5A7 17452 bytes
SHA-256: f6d38249ca808a40297d1cb38ff987b3761bec3829e5668e3d975329f5b0c180

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