Malicious PDF — malware analysis report

Static analysis result for SHA-256 73fa15b6ce893a38…

MALICIOUS

PDF

81.0 KB Created: 2021-03-18 08:39:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 83f06c1de51c8e2d672e85ce2e8f21b7 SHA-1: 2666294379d656c4aa2ce4d42f19ced6f1463135 SHA-256: 73fa15b6ce893a3807c9abfd4c188367ce06bf56d9fad52e9ec46ee4eb63d4f9
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of embedded URLs, including one pointing to 'golowaki.ru', suggests the document is designed to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used for phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

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://golowaki.ru/wix?keyword=annie+martell+interview
    • http://rowewuxeg.getenjoyment.net/zogonedosukugupo.pdf
    • http://neyroskakalka.site/digital_design_principles_and_practices_4th_edition9qe9n.pdf
    • http://tareworig.mywebcommunity.org/61593351090.pdf
    • https://static.s123-cdn-static.com/uploads/4418583/normal_5ff71278d22de.pdf
    • http://7lessons.space/snipers_vs_thieves_classicwswzx.pdf
    • https://cdn-cms.f-static.net/uploads/4529977/normal_6038584b12902.pdf
    • https://wekowegalovu.weebly.com/uploads/1/3/4/6/134668649/7540941.pdf
    • https://cdn-cms.f-static.net/uploads/4449777/normal_603a26d61922a.pdf
    • https://pokasejazutiz.weebly.com/uploads/1/3/4/4/134447431/notevowuz.pdf
    • https://sulomotosepotu.weebly.com/uploads/1/3/4/7/134744650/tesibute-wamakubofalido.pdf
    • http://tonagruz.ru/cancer_in_hindi_downloadwhheo.pdf
    • http://raxewaponoxiv.mygamesonline.org/albeniz_asturias_guitarra.pdf
    • http://bupitubegedew.getenjoyment.net/system_reliability_theory_models_statistical_methods_and_applications.pdf
    • https://cdn-cms.f-static.net/uploads/4466379/normal_5fd19340be75f.pdf
    • http://zugugalepew.mypressonline.com/ginusodezuxu.pdf
    • https://wulapoledonuker.weebly.com/uploads/1/3/2/6/132695240/5389564.pdf
    • https://cdn-cms.f-static.net/uploads/4379241/normal_6030e4521c1b7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/bd3672a6-d70f-4eb0-9238-0c28e8a0d944/mepedokadijolalisojo.pdf
    • http://vigexosav.myartsonline.com/lozodegatazego.pdf
    • http://forezepolutaju.onlinewebshop.net/80876810132.pdf
    • https://uploads.strikinglycdn.com/files/11322724-0f75-4f95-9b67-2cd8d46ea4fc/where_is_the_last_wish_raid_destiny_2.pdf
    • http://fajazimigig.atwebpages.com/mortal_engines_book_2.pdf
    • https://uploads.strikinglycdn.com/files/d470b359-b1a7-43ce-8788-605eaab5aae3/63045106830.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fe4d.bin
6b41f9d45fc85c04d73e286f557f6afdcb198a5744e79cf3d374dcf4a7a291b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE4D 4796 bytes
font_01_sfnt_off00010e90.bin
06ca0067f134ecbd5d343d6bb731d38f859e1f739fb7df3248f6da6373a1c58c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10E90 11944 bytes

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