Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db6bf42a7e362cc…

MALICIOUS

PDF

71.4 KB Created: 2021-03-22 01:12:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: bf3e106373596f60f7e2185b3040091a SHA-1: 6e61c9c8db1211a352c0e8d5f0c39a4bfe1d1b26 SHA-256: 0db6bf42a7e362cc6b6c44309406d263d4303e95b5c76c4c04c778b2e75c0829
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that directs users to a phishing site disguised as a vocabulary answer key. The ML classifier and ClamAV detection strongly indicate malicious intent, likely for credential harvesting or malware distribution. No scripts were extracted, but the presence of external URIs and the document's deceptive content point to a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://ponafet.ru/wix?keyword=unit+7+vocabulary+level+d+answers PDF link annotation
    • https://cdn.sqhk.co/pigexebobe/hdhffPx/tebaxevulajodi.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzekofuwe/Hhiiarq/my_little_princess_in_spanish.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4469370/normal_603dc716201af.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwuwoki/tjhy3hb/80693900623.pdfIn PDF document text
    • https://cdn.sqhk.co/kitijorawul/fhiegeU/ps4_games_to_play_with_friends_offline.pdfIn PDF document text
    • https://cdn.sqhk.co/bupabumo/FKfNigG/wudevig.pdfIn PDF document text
    • https://cdn.sqhk.co/zopisipiwele/Ohjiifl/spanish_medical_terminology.pdfIn PDF document text
    • https://cdn.sqhk.co/rasufizo/VRLNSCq/93795040538.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/uXOWjc1/legoland_pick_a_brick_wall.pdfIn PDF document text
    • https://cdn.sqhk.co/nupegefozub/fycyjeZ/kadixegej.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451033/normal_5fe6271b71fde.pdfIn PDF document text
    • https://cdn.sqhk.co/mewivupa/ihjbifo/mad_max_fury_road_villain.pdfIn PDF document text
    • https://cdn.sqhk.co/jomawutid/bTWigih/tom_and_jerry_characters_dog.pdfIn PDF document text
    • http://verifybadgehelp.com/pioneer_avh-x1500dvd_manualkhuci.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481695/normal_6050a82e1e108.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392470/normal_6031319a0f6a0.pdfIn PDF document text
    • http://hiziryigit.online/fofobamagogoxef4flme.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/615e771b-f7ef-4b51-9daf-b98b3313d485/lg_revere_3_sim_card_location.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b77d578-9f26-49d2-95cf-a1f3d1f4cb3a/situational_irony_in_romeo_and_juliet_act_5_scene_3.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d89fa71b-458a-4547-9008-4eaa3a10caea/wupez.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fef8d3a0-aff9-4243-b6c7-096ba92b7b65/voxatazigevitovaxuwibifup.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7ec0eecb-e2cf-4e52-abf0-af724e78047c/kevum.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ceb3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEB3 5280 bytes
SHA-256: 2e15148b380d8336d4a2b537a84d411b27d6770e46642619ed3a617b8f6efa51
font_01_sfnt_off0000e0c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0C0 9724 bytes
SHA-256: 222a6a2254cc98b0ad4ad79f8bee2af7dd6cd5c1bd8e5b85acbaa88685592e80
font_02_sfnt_off000101fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x101FB 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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