Malicious PDF — malware analysis report

Static analysis result for SHA-256 33869ca38740c0ce…

MALICIOUS

PDF

65.3 KB Created: 2021-02-25 17:18:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 7def8882ce2c0154c397e52bad6780c0 SHA-1: 8a6e9570a2b2bb5afce7704fe233a644b13bbca6 SHA-256: 33869ca38740c0ce44d7abcd068ba1da54f1e671ea975a24253bd6b40e0a8434
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://druttle.ru/award?keyword=twitter+sports+picks PDF link annotation
    • https://cdn.sqhk.co/pofifarim/3Wjha5e/ipad_assistive_touch_home_button_not_working.pdfIn PDF document text
    • https://jexafowasefuxuv.weebly.com/uploads/1/3/4/5/134588667/vajewewik.pdfIn PDF document text
    • https://cdn.sqhk.co/vumusokutil/2hfFYib/gotupenalufijubemuzuk.pdfIn PDF document text
    • https://verijijul.weebly.com/uploads/1/3/4/8/134861220/fopetojakiv.pdfIn PDF document text
    • https://cdn.sqhk.co/sepetuvab/heAfmhg/65765603295.pdfIn PDF document text
    • https://nikizatul.weebly.com/uploads/1/3/5/3/135309179/5898698.pdfIn PDF document text
    • http://vipadobotisituz.mygamesonline.org/software_testing_jobs_in_canada_quora.pdfIn PDF document text
    • https://gomimujexewawid.weebly.com/uploads/1/3/1/0/131070583/b4c57d19.pdfIn PDF document text
    • http://phtech.site/pesquisa_exploratria_segundo_autorest63hx.pdfIn PDF document text
    • https://cdn.sqhk.co/derixosu/c1Ihaja/46427294208.pdfIn PDF document text
    • http://chambrehub.xyz/chrome_previous_versions_macgnepc.pdfIn PDF document text
    • https://cdn.sqhk.co/gowamojon/jceOhcy/toxavorude.pdfIn PDF document text
    • http://fasekafalig.scienceontheweb.net/moxutowuvolafulazu.pdfIn PDF document text
    • http://raisinslabs.club/kepewolamupimatpuvvc.pdfIn PDF document text
    • http://zunuruxeguxifi.mygamesonline.org/58988221091.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/ctgcDhY/best_short_video_maker_app_like_tiktok.pdfIn PDF document text
    • https://ratopavitakam.weebly.com/uploads/1/3/4/4/134460251/7358568.pdfIn PDF document text
    • http://fakaripeti.xyz/supuwosugenafjjdcl.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saxodanokijaj.atwebpages.com/9093015940.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_off0000c855.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC855 4792 bytes
SHA-256: 38df8bde7bfca8cefd1ce40a36010a073b0a0f6e22f242672ad85c8588e14f17
font_01_sfnt_off0000d8cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8CD 9224 bytes
SHA-256: 99ad144391070dcca8977ea3588283fd93b4b201c67efe6ae8d9c72b2fd49843

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