Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fadb64dc1a82c44…

MALICIOUS

PDF

56.7 KB Created: 2021-03-25 09:22:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: fddf8c111363b9dd512c197d1f2f49a3 SHA-1: 9dd5c32c26bc174df400a1dff114e8f16f952f09 SHA-256: 5fadb64dc1a82c44de68328f0b72bbcd54ec0787a69eba905fb29840993090bd
182 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with at least one identified as a malicious redirector. The document body, though heavily obfuscated, contains text related to 'unravel meaning in arabic' and metadata indicating it was generated by wkhtmltopdf, suggesting a potential lure. The presence of numerous links on disposable hosting further supports a phishing or malicious redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6560

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/strik?utm_term=unravel+meaning+in+arabic In PDF document text
    • http://kzrovk.xyz/86334976460nop9n.pdfIn PDF document text
    • http://instapresent.site/315829868727zolk.pdfIn PDF document text
    • http://fenellalucynelle.info/vutelokubesefsjokh.pdfIn PDF document text
    • https://cdn.sqhk.co/kisasizaro/dw2heig/pisuninepagaxoxogidimiw.pdfIn PDF document text
    • https://cdn.sqhk.co/vekokoze/jpZqRja/607384283.pdfIn PDF document text
    • http://itasda.online/how_much_is_driver_retraining_course6a7a0.pdfIn PDF document text
    • http://sbrf.link/gift_of_finest_wheat_bicentennial32jyt.pdfIn PDF document text
    • https://cdn.sqhk.co/parabeset/hcgjhe5/defitiloni.pdfIn PDF document text
    • https://cdn.sqhk.co/tevosudav/ijchhhb/snapchat_app_logo_cute.pdfIn PDF document text
    • http://weex.info/android_translate_animation_reverseh5hzu.pdfIn PDF document text
    • https://cdn.sqhk.co/duponetix/bykjg5N/48621330165.pdfIn PDF document text
    • https://cdn.sqhk.co/zudilubal/xIghMig/tangled_up_in_you_tattoo.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/TpAZejc/messages_icon_iphone_png.pdfIn PDF document text
    • http://bbflowers.net/silesaeh9r2.pdfIn PDF document text
    • http://smartcreditcheck.info/what_time_does_the_forex_market_open_in_california54c4o.pdfIn PDF document text
    • https://cdn.sqhk.co/vemudumuxixu/gwqhfHB/41233662708.pdfIn PDF document text
    • http://bolatufor.epizy.com/logulot.pdfIn PDF document text
    • http://fozilixugijuva.epizy.com/glorantha_bestiary.pdfIn PDF document text
    • http://koraxirimaxodet.epizy.com/ekosh_cg_app.pdfIn PDF document text