Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3a2ffd9e57ec0b3…

MALICIOUS

PDF

67.8 KB Created: 2021-03-06 14:53:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 2f4e689618a68912abf5636b24a71a99 SHA-1: bd2624c54a5709cd842eb7d6de0418b3a57c6734 SHA-256: a3a2ffd9e57ec0b308bed34900b776fb406ce3fa6ba73a28501772415228d7c2
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, identified by ClamAV as a phishing trojan. The ML classifier also flagged this PDF with high confidence. The presence of an external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware delivery.

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://vilenefex.ru/wix?keyword=the+livestock+industry+student+worksheet PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4469136/normal_5feb898e52edd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365563/normal_603eda0a447d7.pdfIn PDF document text
    • http://bcpzonasegur4viabcp.com/xezesalurowogevabewepb56rd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471475/normal_6038425f4a12c.pdfIn PDF document text
    • http://mazers.fun/xanathars_guide_to_everything_5ervd1e.pdfIn PDF document text
    • http://good-production20.site/horror_story_in_bengali_free_downloadlf3yf.pdfIn PDF document text
    • http://fineagencyy.com/how_to_write_a_legal_opinion_nze7y7j.pdfIn PDF document text
    • http://maximizator.online/keleretibutuvaxoxuxibekpo01d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/82477eaa-0600-4095-a8ad-d92c7161fe4b/what_is_anime_subtitle.pdfIn PDF document text
    • https://s3.amazonaws.com/vixuwogetiv/how_to_write_a_reading_response_college.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/636fce3d-dfeb-4376-8025-8bbf82b52ba5/vadefadirifuwim.pdfIn PDF document text
    • https://2d841ef3-a248-4e6a-996b-2d54d6713fdd.filesusr.com/ugd/1decf9_4210b0e47e224b3c8fa0dfd9bdf08e21.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/fedojigudaj/activex_for_mac.pdfIn PDF document text
    • https://19972ee8-34f0-4900-8009-9f590161cd02.filesusr.com/ugd/64db51_cb50c32062eb4837b4ac315571cb3de7.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/bubisifapagefe/caller_identity_app.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1b9ea44f-9b3d-4975-90eb-986b023b5e12/misabe.pdfIn PDF document text
    • https://s3.amazonaws.com/mijumomub/lab_safety_rules.pdfIn PDF document text
    • https://b7f5b04e-b247-49a4-9dc0-39f0c843ec09.filesusr.com/ugd/b56f86_4d9a657a9a764c01a38ec40b83fd796d.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/5fabd8e4-6141-49d4-90d6-2ecfb5a4e507/samsung_smart_tv_40_inch_price_in_kenya.pdfIn PDF document text
    • https://s3.amazonaws.com/lovetijif/firerovesufe.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/medikofogetesoraw.pdfIn PDF document text
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_49a4a2b7b6494ef09c0fa9babe4bcf3a.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/essential_oils_uses_guide_for_diffuser.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_off0000cfe6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE6 5084 bytes
SHA-256: e7da3d7f6a0614b8da3c75cabe2152b004a5d6819a84baa89277d164a2a764ea
font_01_sfnt_off0000e146.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE146 9492 bytes
SHA-256: 81701ac7d787fa47eae6fec29ffdf57f4b78a9cf711d00c74d3346107e403ba7

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