Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0d816ab3167628c…

MALICIOUS

PDF

66.8 KB Created: 2021-03-08 22:07:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 75a99b70493cf5753cd2ec8ef17fe688 SHA-1: 20e45faf7e625d59338c9d72b8dba69152b1fa76 SHA-256: c0d816ab3167628c08ee2f37926f874e6a93d95646749c813b3b114728b9636f
184 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to disposable domains and Weebly subdomains, indicating a link farm designed to distribute malware or conduct phishing. The ClamAV detection and ML classifier strongly suggest malicious intent. The embedded URLs and the structure of the PDF point towards a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9676

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
  • 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
  • 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://soxebez.ru/award?keyword=pdf+buku+agama+hindu+kelas+12+kurikulum+2020 PDF link annotation
    • http://xsale.trade/62928244435tsgt7.pdfIn PDF document text
    • https://kunulidozejenu.weebly.com/uploads/1/3/3/9/133997834/2558508.pdfIn PDF document text
    • http://makeyourself.xyz/61942854235hnvqb.pdfIn PDF document text
    • http://fitnesspack.net/kidemakaxiwamanenijo8xg5b.pdfIn PDF document text
    • https://xaliwituxezaxe.weebly.com/uploads/1/3/5/3/135323019/berixupuvuw.pdfIn PDF document text
    • https://likixolokezixi.weebly.com/uploads/1/3/0/7/130738950/zokodekugubet.pdfIn PDF document text
    • https://lenafalem.weebly.com/uploads/1/3/4/4/134491844/e1401242bd09016.pdfIn PDF document text
    • http://instasavephoto.com/tejetowukexepibugoralas1r90.pdfIn PDF document text
    • http://winoraama.website/295487460758e6db.pdfIn PDF document text
    • http://vsedlyatebya.xyz/ferusitelame7nkj7.pdfIn PDF document text
    • http://mon-fortuneo.best/my_airtel_app_movie_downloadkvxk5.pdfIn PDF document text
    • http://7gusevshop.space/anganwadi_offline_formqgr32.pdfIn PDF document text
    • http://importants.space/19516751045lfs9l.pdfIn PDF document text
    • http://fartook.online/doriselc3j68.pdfIn PDF document text
    • http://ig-support-service.com/nuritukf21hd.pdfIn PDF document text
    • http://cybety.xyz/vortex_cloud_gaming_download_mobile99l4z.pdfIn PDF document text
    • http://zatoboyvibor.fun/is_the_new_york_stock_market_open_on_columbus_dayyy9xa.pdfIn PDF document text
    • http://notdull-eng.online/how_to_hack_fifa_mobile_20_without_human_verification_iospnbi2.pdfIn PDF document text
    • http://mixed-rootwork.com/pukewugugobejewulufagaluf6ilu.pdfIn PDF document text
    • http://vinorama.fun/62432333496k2510.pdfIn PDF document text
    • https://kebumemimax.weebly.com/uploads/1/3/1/6/131636814/malawe-baxofud-xovibametidowig-fovenezanal.pdfIn PDF document text
    • https://madugonado.weebly.com/uploads/1/3/2/8/132815119/juwelirurosarimubis.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ecc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECC1 5852 bytes
SHA-256: 7715d0bcc3e3b2caf8557701a08289ae034857aa5ea3ae560d9651e9abd3f09f

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