Malicious PDF — malware analysis report

Static analysis result for SHA-256 5c07674b1e4d6124…

MALICIOUS

PDF

79.2 KB Created: 2021-03-14 01:16:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a276e9f524e96def3d6c88fc3468c3c8 SHA-1: 1b2614a10bbea0260a8b01651ec6e0fc480bb5b0 SHA-256: 5c07674b1e4d6124ab0dd9ce2e05311f04d0a3dbef17520bf4bc623dedeceaa5
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'ponafet.ru' suggests an attempt to redirect the user to a potentially harmful website. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are commonly used in phishing campaigns to trick users into visiting malicious sites.

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://ponafet.ru/123?utm_term=enlightenment+now+pdf+pinker
    • https://salupoxegiras.weebly.com/uploads/1/3/5/9/135961269/3f8425f7756752.pdf
    • http://palifagumelu.22web.org/vogoxopogerakukavo.pdf
    • http://trend-sales.fun/xuvidelixakakutebiwono5af26.pdf
    • http://clubstore.pro/avent_steriliser_bag_instructionsxcdqr.pdf
    • https://xasuzetevoke.weebly.com/uploads/1/3/2/6/132681443/xujitawoki.pdf
    • https://nurirekesuvakip.weebly.com/uploads/1/3/4/4/134404885/jibali.pdf
    • https://zuzilumapodebaj.weebly.com/uploads/1/3/1/3/131382406/gorotafora.pdf
    • http://opensalon.xyz/mifosupawogilijefo2hpb5.pdf
    • https://mojivisosodarez.weebly.com/uploads/1/3/4/0/134096231/8162999.pdf
    • http://pihodze.com/ziraxim6n17e.pdf
    • https://xobowosesij.weebly.com/uploads/1/3/4/6/134616182/bumetawabarisusikip.pdf
    • http://votewimuvuxa.iblogger.org/jumanafalezigesofar.pdf
    • http://sizoxuk.22web.org/5370718985.pdf
    • https://wofovado.weebly.com/uploads/1/3/1/8/131871653/418c25b9af32.pdf
    • http://lukokiwo.iblogger.org/antecedentes_heredofamiliares.pdf
    • https://gideturifit.weebly.com/uploads/1/3/4/8/134887905/fazoz-jozirujojawob.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/zibenoroduzuw/wosomunetaxosekaxarenu.pdf
    • http://gadigoruper.epizy.com/the_stand_at_paxton_county_trailer.pdf
    • https://s3.amazonaws.com/zifilobesumafi/8635198115.pdf
    • https://s3.amazonaws.com/sojebelevenex/30661044532.pdf
    • https://s3.amazonaws.com/zodererezuzuxi/16790498862.pdf
    • http://gozipoxux.rf.gd/huawei_android_phone_without_camera.pdf
    • http://rixupod.rf.gd/agnathavasi_telugu_movie_tamilrockers.pdf
    • https://s3.amazonaws.com/vekodupiwarobi/pesulopapitujo.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_off0000f8c0.bin
b6eb5887b41d0df7bc447b73b0cff40b0065527b962955be14ff517ade8b7520
pdf-font-stream PDF embedded font (sfnt) at offset 0xF8C0 5180 bytes
font_01_sfnt_off00010a4f.bin
7310bf74bb4d0a547d95a38be317eb45cff4dcf7cc575ecf6e561ab3284f77b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x10A4F 10828 bytes