Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ce5401c85e564c1…

MALICIOUS

PDF

77.7 KB Created: 2021-03-09 06:54:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: e6a467e14f49eb31293843ea2d029378 SHA-1: 50568710f892a184be6de1f13053e6814409e387 SHA-256: 3ce5401c85e564c15e6aa064c77895b04919e581038f7d917cb6932cdc898903
134 Risk Score

Malware Insights

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

The PDF document contains multiple external URIs and is flagged as a link farm on disposable hosting, indicating a phishing or malware distribution attempt. The ClamAV detection and ML classifier strongly suggest malicious intent, likely to trick users into downloading a payload disguised as a driver. No scripts were extracted, but the presence of embedded URLs and the overall structure point towards a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://nipisod.ru/123?utm_term=adaptec+asc-+1045+driver PDF link annotation
    • http://vanimerukaguto.scienceontheweb.net/how_much_does_it_cost_to_replace_a_sub_zero_compressor.pdfIn PDF document text
    • http://sufewonu.iblogger.org/plantronics_backbeat_go_410_wireless_active_noise_cancelling_earbuds.pdfIn PDF document text
    • http://wetiludivarag.scienceontheweb.net/31537560212.pdfIn PDF document text
    • http://sberbank.services/4914829893fikq9.pdfIn PDF document text
    • http://uabiomanix.xyz/nitudozzzrl.pdfIn PDF document text
    • http://zumepaposakuf.scienceontheweb.net/54987302790.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://30c74dc1-c3f2-4e71-8253-1ec84f3b94e1.filesusr.com/ugd/b8c6fa_5085cc3b37c5486aa5f6c63b4d371b28.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7804755-5e83-4330-b8e0-5d9a332a4aa7/maserati_mc_stradale_horsepower.pdfIn PDF document text
    • http://tijopuzotozume.rf.gd/pusibaxipizatix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95cd8781-f240-4555-91d6-556ab5518e44/70692714260.pdfIn PDF document text
    • http://wokarodefi.onlinewebshop.net/product_recall_procedure_format.pdfIn PDF document text
    • http://rifufogasuser.rf.gd/78879409306.pdfIn PDF document text
    • https://2489a575-72f7-492f-b117-28cfe4a4d2a3.filesusr.com/ugd/d81705_f425672b35b14be4b7737a6e125f67a7.pdf?index=trueIn PDF document text
    • http://rezumasalimod.epizy.com/sms_bypass_apk_free.pdfIn PDF document text
    • http://rufabededaloti.rf.gd/fundamentals_of_computer_graphics_fourth_edition.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e4e2dff8-d9e1-41ca-863b-e36dea107988/what_does_moonshine_mean.pdfIn PDF document text
    • http://gevosumol.epizy.com/53467746220.pdfIn PDF document text
    • https://4be8a7ba-6c9a-47a4-99fc-a5961b41a404.filesusr.com/ugd/132250_fdaad997c8b4460c85e4371c4c89e04e.pdf?index=trueIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cc2924c-058a-4fd8-bc6b-8721b4259f73/what_is_the_average_income_in_the_us_2020.pdfIn PDF document text
    • http://rutipozi.epizy.com/13110388451.pdfIn PDF document text
    • http://duvodix.myartsonline.com/rawijiw.pdfIn PDF document text
    • https://2e6726a7-2e78-456a-9fa1-8bc85c3b20a6.filesusr.com/ugd/76e31d_e0136c3963704c248037a86e1cd5d18a.pdf?index=trueIn PDF document text
    • https://368051e9-4199-40ea-b9a2-dc6e6f83cb3b.filesusr.com/ugd/6260fe_01e21f07729c41db9d1fd26a97bea01d.pdf?index=trueIn 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_off0000e648.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE648 5524 bytes
SHA-256: 3bcdb3111b31b104d9e66a2afbaa824def235a7a56a158b1e60f28ea4be0ed0b
font_01_sfnt_off0000f938.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF938 15596 bytes
SHA-256: f080297dca298e3e10452333f0b8e4e3d344f19d8a37b46c22c38eceaef97aaa

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