Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d95a9d36f4ae2e…

MALICIOUS

PDF

72.7 KB Created: 2021-03-28 00:06:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9545524fdac15347df7ec34c1ec40879 SHA-1: ad5026f353d267cb07552a7c560f9f85878ad1a8 SHA-256: 80d95a9d36f4ae2eba64a4bbaffb21b3f46222bd572fe356346b68ed685db2bb
96 Risk Score

Malware Insights

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

The file is a PDF that contains an embedded URI pointing to a URL that appears to be a lure for downloading further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of external URIs suggests an attempt to redirect the user to a malicious site.

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://lozipotod.ru/award?keyword=calendar+2020+with+holidays+bangladesh+pdf
    • http://save50it.info/what_is_internal_check_in_auditingv3b15.pdf
    • http://1green.space/dulanulorumanasovagasero0yr.pdf
    • https://gulapekojikag.weebly.com/uploads/1/3/2/7/132741551/vuselew.pdf
    • http://geleostone.online/64150500117si9c5.pdf
    • https://vewosofi.weebly.com/uploads/1/3/4/4/134493368/2c8ba60.pdf
    • http://loveworld.club/13251152664x14sp.pdf
    • https://cdn-cms.f-static.net/uploads/4485718/normal_6026280bc04ba.pdf
    • https://static.s123-cdn-static.com/uploads/4464303/normal_5febef7cc2e81.pdf
    • https://marajudalade.weebly.com/uploads/1/3/1/4/131438096/xazenop_lawigibabix_peledurix_tawaw.pdf
    • https://static.s123-cdn-static.com/uploads/4469836/normal_5feeb80015325.pdf
    • http://nout-sale.site/trafic_tours_coupongiuvm.pdf
    • https://rowagikej.weebly.com/uploads/1/3/4/6/134678960/889e58d20c7a272.pdf
    • https://static.s123-cdn-static.com/uploads/4478947/normal_60076f56b2078.pdf
    • https://static.s123-cdn-static.com/uploads/4466661/normal_5fee373b89cbc.pdf
    • https://cdn-cms.f-static.net/uploads/4455881/normal_603a5346e2879.pdf
    • http://circus.market/ap_english_language_and_composition_exam_2016_multiple_choice_answers0w19d.pdf
    • https://static.s123-cdn-static.com/uploads/4413235/normal_5fcb9d55747c7.pdf
    • http://strahuemsya.info/suxupetkrp7n.pdf
    • https://tokuniti.weebly.com/uploads/1/3/4/3/134331772/zorazejurudo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/39000f17-35e2-424f-a3b7-582777fc9b95/828720664.pdf
    • https://uploads.strikinglycdn.com/files/2718277e-ea84-4e57-920e-518210f6b46f/48838549379.pdf
    • https://uploads.strikinglycdn.com/files/afc05117-a87e-434f-8daa-cfa55b7338cf/fukisadoxomutozuxitusel.pdf
    • https://uploads.strikinglycdn.com/files/a4969100-4945-43b8-89ac-8e420e821d19/75707989801.pdf
    • https://uploads.strikinglycdn.com/files/2f0df4ca-65e6-482c-8a92-0ae07d4c0a39/gidiraxonovutekoz.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_off0000dd13.bin
b1ed4850a9b6e1c36b807411574cc78773cd663699f5c390992cb6fe465403a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD13 5816 bytes
font_01_sfnt_off0000f0e7.bin
f498967d89cb004123ed0b398159175f086169fbfcc8cdb71055a022686cd4f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0E7 10648 bytes

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