Malicious PDF — malware analysis report

Static analysis result for SHA-256 df40862419acc3b2…

MALICIOUS

PDF

74.6 KB Created: 2021-04-22 12:26:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: afc026c4a1e98fa6ebc93485cb62a509 SHA-1: 58642a13430191765dbd3b7f7c6ecee66774b5e7 SHA-256: df40862419acc3b28348beac7e512242cfc85ce8a0fdf649e31e21eaa73c2ef4
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://lozipotod.ru/strik?utm_term=how+to+pair+a+bluetooth+keyboard+to+ipad PDF link annotation
    • http://24goodstore.site/onn_roku_tv_32_inch_pricelz3yu.pdfIn PDF document text
    • https://cdn.sqhk.co/titusegik/gdgcjbY/super_penguin_league_3.pdfIn PDF document text
    • http://bigswinner.space/6217878806r28po.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392666/normal_602a37c302858.pdfIn PDF document text
    • http://leopards.space/autotransformer_starter_control_diagramqkjcr.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408719/normal_604b09b89c167.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378641/normal_5fd959a43f7e5.pdfIn PDF document text
    • http://about-central.com/75313527200lulb7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479710/normal_5fc880a10b2d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393916/normal_60647d4886ed4.pdfIn PDF document text
    • http://sodaapp.pro/32305305603jx1g8.pdfIn PDF document text
    • https://cdn.sqhk.co/maxolavoweje/Sru4Qk5/bloons_td_6_mods_ios.pdfIn PDF document text
    • http://qrastenmap.online/jenexovigelile7hxzx.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wonumafubij/33912667376.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ce2c6dd8-0920-4b41-9f15-a3231e5b98ac/2233981757.pdfIn PDF document text
    • https://s3.amazonaws.com/wumodukubaru/chemistry_questions_and_answers_apk.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a03b918a-6e16-4f3a-a38f-773bc2334b85/who_do_i_call_if_i_lost_my_ebt_card.pdfIn PDF document text
    • https://s3.amazonaws.com/fowikorejodi/gigabyte_aorus_motherboard_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a59a116-270a-4696-ab14-c8cb42e7d483/design_as_art_bruno_munari_review.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/26040822245.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9bb28bd8-1d75-4b7a-997b-3f87af23ce0f/33898195802.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6fd331a9-37ca-4c4b-b0b1-348e9d7afc0b/maytag_dryer_model_medx655dw1_timer_not_working.pdfIn PDF document text
    • https://s3.amazonaws.com/megodipewukitoj/what_type_of_lawyer_gets_paid_the_most_in_south_africa.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e54e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE54E 5228 bytes
SHA-256: d775b686e57e7bf674ea6c15bc2530b20855f66d96dd837de3b654d324d09c85
font_01_sfnt_off0000f715.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF715 11064 bytes
SHA-256: 49b9ded60ae36b38904d101f2a1aec890a8c61f252d91d4950dfdcf1d1cbc91c

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