Malicious PDF — malware analysis report

Static analysis result for SHA-256 00ad3dff286e3a5c…

MALICIOUS

PDF

51.0 KB Created: 2021-03-09 09:14:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 684cb30dd27bbb311373a33bf22365cd SHA-1: 61acae8b7dab8e6cf0d5a9a2c2a41f6642ab7ceb SHA-256: 00ad3dff286e3a5ce2a8eb2ba4aed443ef2ce2c7d32f1824835fb2550f715946
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded URLs pointing to disposable domains, a common tactic for phishing or distributing further malware. The 'PDF_SEO_DISPOSABLE_LINK_FARM' heuristic specifically flags this behavior, indicating a high likelihood of malicious intent. The ML classifier and ClamAV detection further support the malicious classification. No scripts were extracted, but the document's structure and embedded links strongly suggest it's part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6464

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://golowaki.ru/strik?utm_term=how+to+find+penny+stock PDF link annotation
    • http://nopowajowopu.iblogger.org/jigabefolagitarozonewa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405687/normal_5fda774e7da06.pdfIn PDF document text
    • http://supesanav.iblogger.org/how_many_subject_tests_does_stanford_require.pdfIn PDF document text
    • http://idealicaitaly.site/honda_shadow_1100_aftermarket_partsnm8tf.pdfIn PDF document text
    • http://xititarosoki.iblogger.org/monsters_vs_aliens_president_song_sheet_music.pdfIn PDF document text
    • http://getezuderag.iblogger.org/12442072401.pdfIn PDF document text
    • http://keepmaxi.space/verbos_comparativos_en_ingles_lista2ou0r.pdfIn PDF document text
    • http://jipujitematane.iblogger.org/cuisinart_ice_cream_maker_at_walmart.pdfIn PDF document text
    • http://biomanua.website/jexivimumokisosefutynry7.pdfIn PDF document text
    • http://javofekuniti.22web.org/how_to_negotiate_to_buy_your_leased_car.pdfIn PDF document text
    • http://mimamiva.iblogger.org/kefuvoto.pdfIn PDF document text
    • http://mx50off.info/656736643364rch5.pdfIn PDF document text
    • http://aslixan.com/when_was_the_temple_in_jerusalem_destroyed_by_the_babylonianso404q.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464055/normal_6045e339d5b7a.pdfIn PDF document text
    • https://d70b1dc8-7d09-4148-9854-e6a7cae1b87b.filesusr.com/ugd/5899d5_165aeee893584647aebe8052e824f9de.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/69646736-8dea-4ea7-bb0f-2dca85fa1d05/gidotavokez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3a80e93b-773c-4209-a012-3a658f74a700/7017517365.pdfIn PDF document text
    • http://tibibexubedumu.rf.gd/77450627882.pdfIn PDF document text
    • http://mosokuwovilo.epizy.com/zemowixugozazotu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f25df628-d6cd-4fdc-91ec-2c7b5f459ed6/bmw_e30_repair_manual.pdfIn PDF document text
    • https://df6a9abb-74f3-47e1-b359-fe6d1019da36.filesusr.com/ugd/7921d2_44bf80e858ce47eea064f1d3f93ac844.pdf?index=trueIn PDF document text
    • https://85fc0914-20e3-4f1c-be8c-de7e6f89f47e.filesusr.com/ugd/a44510_e7ac1ff787f34a47b3090bac465ff9cc.pdf?index=trueIn PDF document text
    • https://60f6da8c-824c-4163-aae9-6195f2ac7ed4.filesusr.com/ugd/7f16bd_92012c9b3c374178b125a8d72afebc86.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/3859d331-475e-44e7-bd6f-506064ec29d1/what_is_wendys_value_menu.pdfIn PDF document text
    • http://bujuxuvumelijet.epizy.com/vojoba.pdfIn PDF document text
    • https://d04c2b29-3777-4fe6-aaa9-ab96f87c3324.filesusr.com/ugd/43eb95_d87641426693488bb25c52849192b3ce.pdf?index=trueIn PDF document text

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