Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb94ecc7c7196846…

MALICIOUS

PDF

74.3 KB Created: 2021-02-20 08:54:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 3cdfd7669a291c571d6e25597a646e82 SHA-1: 6b77fae483dd47feb06c500e63d9d664f54ad03c SHA-256: fb94ecc7c7196846794050c399e398d3a2884b23b2826c6d8bb63c967241f69a
96 Risk Score

Malware Insights

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

The PDF document contains a URL that mimics a search query for cleaning instructions, likely a lure for a phishing or malware delivery site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI point towards a common phishing or malware distribution technique.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://maypoin.ru/strik?utm_term=how+do+i+clean+my+philips+respironics+nebulizer PDF link annotation
    • https://cdn.sqhk.co/lisutovudaf/biaONE3/23792432129.pdfIn PDF document text
    • https://cdn.sqhk.co/narivujuraf/A0hjijR/90736589024.pdfIn PDF document text
    • https://cdn.sqhk.co/xovikojux/hixEihc/33320965210.pdfIn PDF document text
    • https://cdn.sqhk.co/kuruwoke/jgPidhc/sosup.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/idhfjhW/pidasofekusalezet.pdfIn PDF document text
    • https://cdn.sqhk.co/dolafita/icjhjfJ/58658308031.pdfIn PDF document text
    • http://xasefosixojoloj.iblogger.org/54773828032.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/hchffjd/marvel_comics_stock_value.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/echbif2/81853445562.pdfIn PDF document text
    • https://cdn.sqhk.co/wajerewuwer/njfsUig/chat_rooms_for_free.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bomupi/55161602139.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/wozomuful.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/free_android_recovery_software.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/49316046510.pdfIn PDF document text
    • https://s3.amazonaws.com/toguvaju/saxupolemewisibowa.pdfIn PDF document text
    • http://kukadafimi.rf.gd/xevukafudiromitudo.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/dezejibikobige.pdfIn PDF document text
    • https://s3.amazonaws.com/dusubonifu/apeman_id71_user_manual.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_off0000e5c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5C3 5656 bytes
SHA-256: 43f0a4938735cec108f810b37be63d4bb28f12b4d13fcc4c0aa6dcacceee9489
font_01_sfnt_off0000f8e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E9 10288 bytes
SHA-256: 8a3af96051cdd3c1197997ad83272426f3a1d000d515ea919511372d71e2371d

Open this report in the interactive analyzer, or submit your own file for analysis.