Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e1650245f08afa5…

MALICIOUS

PDF

76.9 KB Created: 2021-03-17 07:20:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: a7075ac121c60f1e1befaf7b8bb87f10 SHA-1: 22c2c7ae05f12de0a9f46481f28a5e082dd87b71 SHA-256: 2e1650245f08afa58870c85510ead8bf86e470efc9b623af6d7ed81964cc7064
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. The embedded URL points to a suspicious domain, suggesting a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URIs are consistent with techniques used to redirect users to malicious sites, potentially for credential harvesting or further payload delivery.

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://zajinet.ru/strik?utm_term=how+to+barcode+scanner PDF link annotation
    • https://niwejipudid.weebly.com/uploads/1/3/5/3/135383293/wetav_safukuwoxerudiv_tobukiv.pdfIn PDF document text
    • https://bofejaximolapob.weebly.com/uploads/1/3/4/7/134751884/7676543.pdfIn PDF document text
    • https://pelosewedi.weebly.com/uploads/1/3/4/7/134753512/30fdeb74b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4460066/normal_5ff7164b66669.pdfIn PDF document text
    • http://teren.fun/vojazumudujaxetup4lvqg.pdfIn PDF document text
    • http://lasns.fun/don_t_touch_my_phone_wallpaper_3d_download3nxqx.pdfIn PDF document text
    • http://lnstagramverifiedbadge-form.com/what_is_conventions_of_academic_writinga7o7z.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460241/normal_60337cafdfd66.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_60339fc8ba9c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426686/normal_604edbea8837c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4445890/normal_600046f69ac1d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/bomupi/dafufuwivusewavozaleme.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25eff3ea-088a-40fe-90f6-0a53b502f85c/why_am_i_so_bad_at_statistics.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/how_to_write_an_essay_for_university_application_examples.pdfIn PDF document text
    • https://s3.amazonaws.com/wifukedot/game_battleground_offline_android_terbaik.pdfIn PDF document text
    • http://dovesibikore.epizy.com/67873832250.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/856b126f-ed68-436b-a44a-e4f9b2357407/nipiwegano.pdfIn PDF document text
    • http://duxegevonuzevuj.rf.gd/81596131198.pdfIn PDF document text
    • https://s3.amazonaws.com/bufexa/centos_6_server_iso.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e32c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE32C 4836 bytes
SHA-256: ce3f6cdc56af1e056f5ffd0b397fe8e45f75d29bdf19b614aa17c9e9e89f6673
font_01_sfnt_off0000f3a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A3 10768 bytes
SHA-256: 2fb640fa89fcd8f4151370459f4fcdfdc7c501525b16f323006bc3dcfd8b16b7
font_02_sfnt_off0001182e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1182E 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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