Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc2cc1fb817e69d0…

MALICIOUS

PDF

69.8 KB Created: 2021-03-31 05:41:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-13
MD5: 73a434289cdeb64188be71003c02029c SHA-1: 5c26b278e4cd98294e845dd3fa8beeb9025a96b3 SHA-256: bc2cc1fb817e69d036ae624748ae6cd079b7add7c61aeead7d558ec659a87019
126 Risk Score

Malware Insights

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

This PDF file was flagged by ClamAV as Pdf.Phishing.Trojan and an ML classifier indicated a high probability of maliciousness. The document contains numerous embedded URLs, many of which point to disposable hosting domains, suggesting a link farm or phishing lure. One prominent URL, https://lozipotod.ru/wix?keyword=solar+booster+pac+es2500+manual, is presented as a manual, likely to trick users into visiting a malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://lozipotod.ru/wix?keyword=solar+booster+pac+es2500+manual PDF link annotation
    • http://virilibag.66ghz.com/basketball_court_template.pdfIn PDF document text
    • http://sidibifurup.22web.org/xusenor.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379219/normal_5ff1c9a7721c4.pdfIn PDF document text
    • http://zodajixinijetu.22web.org/agile_project_management_in_software_engineering.pdfIn PDF document text
    • http://desoneveru.iblogger.org/64804311878.pdfIn PDF document text
    • https://cdn.sqhk.co/vadezewe/kjiii0t/lotijadetuvededosanolefer.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478415/normal_5ff228985b067.pdfIn PDF document text
    • http://iranianvc.com/sefirovap4cv1.pdfIn PDF document text
    • http://scrlt.xyz/how_to_connect_behringer_xenyx_1204_to_computerhvn8f.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/ghhujgL/gapudoziporeporitafi.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/jjqhfdl/88850558945.pdfIn PDF document text
    • http://neludetewul.22web.org/63912087699.pdfIn PDF document text
    • http://ketrovk.xyz/football_manager_2015_wonderkids_cheaplls29.pdfIn PDF document text
    • http://bcpzon4segurabetaviabcp.com/375144256346ezhl.pdfIn PDF document text
    • https://cdn.sqhk.co/tifobebe/hgACgfO/jabakujitinezul.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471081/normal_5ff68449a4087.pdfIn PDF document text
    • https://cdn.sqhk.co/lenufetimop/whahahd/22473087850.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://saziwujezad.epizy.com/85185538844.pdfIn PDF document text
    • https://s3.amazonaws.com/xonobijikivo/47392776096.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/counter_strike_source_model_viewer.pdfIn PDF document text
    • https://s3.amazonaws.com/gateme/86768717713.pdfIn PDF document text
    • http://vozuxutebesur.rf.gd/73929234864.pdfIn PDF document text
    • http://paxafumalinuber.epizy.com/ravaxafafisiwelaj.pdfIn PDF document text
    • http://jabegijazuxag.rf.gd/happy_birthday_cake_photo_frame.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_off0000cfb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFB1 5720 bytes
SHA-256: 10aac017b243635a3301487ca7d108fbab010d457488fd96e7b1725e6f2d44f0
font_01_sfnt_off0000e311.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE311 10892 bytes
SHA-256: c02288c7296c4d1739365533a9477eff4f9a168cf7e9dcd13674fc106e744107

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