Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b55da6d3e119c41…

MALICIOUS

PDF

78.9 KB Created: 2021-02-27 05:16:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6473867391d6b0f8fef15f4e3d2cf558 SHA-1: 5db8ac75d7e1905fc174592eacf931c55afc99dc SHA-256: 0b55da6d3e119c417ca68a92beb729664d90446fdbbb386da13b498115d3e6ca
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 0.9991

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://baarspo.ru/strik?utm_term=make+your+own+simple PDF link annotation
    • http://premiumpornclips.com/785175320259cw95.pdfIn PDF document text
    • https://cdn.sqhk.co/paxajirawegu/SPRiKvU/iq_flipper_knife_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477379/normal_5fd083bed1c17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427780/normal_5fff039d38b0a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404285/normal_60373e88cef3f.pdfIn PDF document text
    • https://cdn.sqhk.co/zajagatetode/FjaOZhj/horizon_blue_cross_blue_shield.pdfIn PDF document text
    • https://subijiderekura.weebly.com/uploads/1/3/4/6/134616270/duwogarafetefa_nofobanitum_jewebemuwipofi_nutemajem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4372105/normal_5fdf8132c9ba6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417308/normal_602a713bd0b21.pdfIn PDF document text
    • https://cdn.sqhk.co/sadirorig/iihdien/virtua_tennis_challenge_mod_apk_1._3._6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375077/normal_5fe74c0cf2d47.pdfIn PDF document text
    • http://wspring.space/fosixojeranivarovaduxb06t3.pdfIn PDF document text
    • https://cdn.sqhk.co/lubigegek/estJBE2/car_horn_sound_mp3_ringtone_download.pdfIn PDF document text
    • http://dfahsdfgjsfg.online/dora_malayalam_cartoon_video_free_downloadcrmec.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425784/normal_5fddca3658564.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4411001/normal_6000971984873.pdfIn PDF document text
    • https://cdn.sqhk.co/kinibemazoz/flhhiid/online_auction_software_for_nonprofits.pdfIn PDF document text
    • https://sozejaras.weebly.com/uploads/1/3/2/6/132695734/e5e208bb.pdfIn PDF document text
    • https://pebezudaxefen.weebly.com/uploads/1/3/4/3/134347708/kigidebogupenekel.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://s3.amazonaws.com/ropidadegaxut/union_budget_2018_gradeup.pdfIn PDF document text
    • https://s3.amazonaws.com/kovezux/19044847667.pdfIn PDF document text
    • https://s3.amazonaws.com/daselex/angle_relationships_pyramid_puzzle_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/fadupazageraf/rifenudun.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_off0000eb4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB4F 5028 bytes
SHA-256: f9dbbed7ec21409367a450bbbd3eaf382d94148efcfdfac2794eeee6bde8cd5e
font_01_sfnt_off0000fc62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC62 10304 bytes
SHA-256: 668f6b243fc5d5a7e631464c48a1b325151ad9c7a798f00ec0458b2372f4b711
font_02_sfnt_off00011fb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FB2 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34

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