Malicious PDF — malware analysis report

Static analysis result for SHA-256 baba7e84440ba243…

MALICIOUS

PDF

79.5 KB Created: 2021-03-15 01:24:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5493b68314f4c62fec0885ffc02c9820 SHA-1: 6438c987271b62d8a69f1c560d1376710b9e475a SHA-256: baba7e84440ba243b1070b3463a45667a7e66d61470da1a09c21ae56d7b0ce88
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URL, https://ponafet.ru/wix?keyword=niche+meme+ideas, which is presented in a way that suggests it's a search result for 'niche meme ideas', likely to trick the user into clicking it. The PDF also contains other suspicious URLs, suggesting it's part of a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ponafet.ru/wix?keyword=niche+meme+ideas
    • http://nadefememidep.medianewsonline.com/manulizimosidu.pdf
    • https://bimevaxufozuz.weebly.com/uploads/1/3/2/6/132683359/bd242.pdf
    • https://static.s123-cdn-static.com/uploads/4384160/normal_6006a286653cf.pdf
    • https://static.s123-cdn-static.com/uploads/4386089/normal_5fcee25ca0027.pdf
    • http://vetebozo.mypressonline.com/35583898691.pdf
    • https://pefizisiguxuv.weebly.com/uploads/1/3/1/4/131438819/1056de4.pdf
    • http://fegokodelaxen.scienceontheweb.net/89208083372.pdf
    • https://static.s123-cdn-static.com/uploads/4414860/normal_5fc89d64b13f1.pdf
    • http://nelodorofi.iblogger.org/hierarchy_templates_freepik.pdf
    • https://dunudafulu.weebly.com/uploads/1/3/1/0/131071166/sakufagefupo.pdf
    • https://vatuwogumim.weebly.com/uploads/1/3/4/6/134605764/kosozisipejive.pdf
    • https://pabotori.weebly.com/uploads/1/3/1/0/131070723/futafe_fekuwijip_lemisamevune_nokiribikoge.pdf
    • http://xakuneferufilew.iblogger.org/29271623293.pdf
    • http://rasidafepu.mypressonline.com/garageband_to_mp3_ios.pdf
    • https://cdn-cms.f-static.net/uploads/4414515/normal_600b5d21272b4.pdf
    • http://wawesoja.sportsontheweb.net/96765100032.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zifozujiwi/prentice_hall_foundations_algebra_1_teaching_resources_answer_key.pdf
    • http://fuxunowelujuxa.atwebpages.com/associer_les.pdf
    • http://luxupuxud.myartsonline.com/viponojix.pdf
    • http://nosigegu.onlinewebshop.net/40578290816.pdf
    • https://s3.amazonaws.com/bededuxotulapil/87682513160.pdf
    • http://boduruva.epizy.com/lipoboserolaje.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_off0000fbec.bin
705f5240b0be9dbd1c38790ed785a613f9a4fbe7f40617c4b0e26a770f3ed2ff
pdf-font-stream PDF embedded font (sfnt) at offset 0xFBEC 5020 bytes
font_01_sfnt_off00010cda.bin
ba660a7a62b8e499fc47c496ff21781cc4563726f9acea0464e736d85256412b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10CDA 10476 bytes