Malicious PDF — malware analysis report

Static analysis result for SHA-256 f1714fbae28d463e…

MALICIOUS

PDF

80.4 KB Created: 2021-02-21 12:22:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 70ab31817e91851be05e2b2ab39dddca SHA-1: 0912eeb0895bf453a433f990be43e2f66456cb46 SHA-256: f1714fbae28d463e79cf15d551b553537a506ad553be28b8cbb691236bb2526a
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily obfuscated, appears to contain a lure related to dream interpretation, suggesting a social engineering tactic. The presence of embedded URLs and the ML classifier's high confidence score further support the malicious nature of this file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=what+does+a+black+dog+biting+you+in+a+dream+mean In PDF document text
    • https://cdn-cms.f-static.net/uploads/4481528/normal_600d089326d17.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367916/normal_5fece8cc8c516.pdfIn PDF document text
    • http://jigatinapa.22web.org/principles_of_naval_architecture_volume_4.pdfIn PDF document text
    • http://kadabafomelu.66ghz.com/57898117024.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453720/normal_5fcacb5c7ae48.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4427793/normal_5fceac36131c1.pdfIn PDF document text
    • https://cdn.sqhk.co/keragipiki/Pcgehi8/mijasilikivogapo.pdfIn PDF document text
    • https://cdn.sqhk.co/vozogekom/ggy4OAu/mutant_creatures_mod_1._7._10_crash.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425511/normal_5fc6c7da87c83.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370077/normal_601baf075bb01.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483836/normal_5ff8f5640f1e7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408589/normal_5fd2a42f05bd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391000/normal_602c50d812d2a.pdfIn PDF document text
    • https://cdn.sqhk.co/suxujaba/tHjaqje/ps4_second_screen_not_working_2020.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483071/normal_5ff48a2ed7f4e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481409/normal_5fe6416c2282d.pdfIn PDF document text
    • https://cdn.sqhk.co/xuluriwu/ingdxge/forest_stream_live_wallpaper_for_pc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://detuzojezil.rf.gd/free_web_layout_template_psd.pdfIn PDF document text
    • http://jilerixam.epizy.com/aflatoon_marathi_movie_songs_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wovedukevikov/auto_login_code_in_android.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/cheque_bancario_nominativo_conformado.pdfIn PDF document text
    • http://lofoxos.epizy.com/4162314501.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/vazurowoj.pdfIn PDF document text
    • https://s3.amazonaws.com/vatosolikijike/81579325578.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fb77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB77 5672 bytes
SHA-256: 4948f659afad3b6d27eff1f5358dcd30c5111982a31b43c793134f3380f1c921
font_01_sfnt_off00010ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10EA9 10812 bytes
SHA-256: 330405e89fbd3820c6abf131ff1bab60a33a9818ce7bc2af67a5b5c451c9acea

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