Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d4cf99770a1a123…

MALICIOUS

PDF

64.0 KB Created: 2021-03-20 23:59:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: ea7dbdaca3910cabce871f5e9935f523 SHA-1: c797619759c9dab3ba90645e0fce3008db139eea SHA-256: 9d4cf99770a1a123440a14865b9f2db69cdd2feae9523f69e4549479f1943989
124 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs, many of which point to disposable domains and are likely used for phishing or to host malicious content. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic indicates a deliberate attempt to create a link farm on disposable hosting, suggesting a malicious intent to distribute or redirect users. ClamAV detection as 'Pdf.Phishing.Trojan' further supports the malicious classification.

Machine Learning

  • Nyx PDF Classifier malicious score 0.5460

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://botokaw.ru/strik?utm_term=jesus+your+the+center+of+my+life+lyrics PDF link annotation
    • http://vittorguxx.site/eid_mubarak_arabic_calligraphy_vector_freei3ueb.pdfIn PDF document text
    • http://usblighter24.site/hackmaster_4th_edition_players_handbook2igik.pdfIn PDF document text
    • http://magazinrf.xyz/iphone_whatsapp_plus_apkitffy.pdfIn PDF document text
    • http://autokenn.com/17960912564spron.pdfIn PDF document text
    • https://cdn.sqhk.co/wifepodilojo/iiaB6Jn/zuvenunagimax.pdfIn PDF document text
    • https://nupimixek.weebly.com/uploads/1/3/2/7/132712066/sodizeligovelilo.pdfIn PDF document text
    • https://cdn.sqhk.co/temegolu/wzA5jgj/happy_teachers_day_greeting_card_homemade.pdfIn PDF document text
    • https://cdn.sqhk.co/xukigipeduve/UTVha9Q/24_hour_clock_format_c.pdfIn PDF document text
    • http://mexicotop3.xyz/nutone_central_vac_extension_hosev1sog.pdfIn PDF document text
    • https://cdn.sqhk.co/dagufiwus/h7pn7la/vax_steam_cleaner_black_friday.pdfIn PDF document text
    • http://ravujonawugip.22web.org/64983706532.pdfIn PDF document text
    • http://xbet1.fun/780516279390xtmr.pdfIn PDF document text
    • https://cdn.sqhk.co/tigepukeri/9DjjijF/tanoxexi.pdfIn PDF document text
    • http://twenty-promo2020.ru/104468705363elzo.pdfIn PDF document text
    • https://rulafowobunafo.weebly.com/uploads/1/3/5/3/135391395/xatuj-pupilusa-xatadido-gibigom.pdfIn PDF document text
    • https://noragunefide.weebly.com/uploads/1/3/1/6/131637841/93a11a74ae.pdfIn PDF document text
    • http://ehaberdevlet.com/john_deere_345_snowblower_installationpvvp5.pdfIn PDF document text
    • http://disujexa.22web.org/online_platform_ticket_booking_delhi.pdfIn PDF document text
    • https://zawasofolebu.weebly.com/uploads/1/3/4/9/134902788/tazalebolejejinas.pdfIn PDF document text
    • https://litukepulaj.weebly.com/uploads/1/3/4/8/134863372/kemejuv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://c5c27394-2042-4749-9b39-d1c24dcbd9f0.filesusr.com/ugd/e9b987_96d2f9cd4fc44fab8af5b9bf7f90a3f3.pdf?index=trueIn PDF document text
    • https://769966b8-4adc-437e-bba8-f198cf6e171b.filesusr.com/ugd/41a0b6_465f7b61dc9c4b78ba143505876184ec.pdf?index=trueIn PDF document text
    • http://pikejip.rf.gd/23704347401.pdfIn PDF document text
    • https://59b17237-83b3-47c6-9d40-f547da5b0434.filesusr.com/ugd/827194_0be5291f564d4872946d40c5b952679c.pdf?index=trueIn PDF document text
    • http://jibipadesubamom.epizy.com/shadowverse_meta_report.pdfIn PDF document text
    • https://c46c713f-5e69-4c64-aad4-d86f29440f76.filesusr.com/ugd/957c7b_eabca5c2908942988b6998a26c66ac17.pdf?index=trueIn PDF document text
    • http://mibiravotawuga.epizy.com/1270312212.pdfIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d7ca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CA 4884 bytes
SHA-256: d1ff8b68e27ea471bd55c1ac62b3e43439bf72e82d7ec5d850c2c6a486feab31