Malicious PDF — malware analysis report

Static analysis result for SHA-256 3650b18533799d45…

MALICIOUS

PDF

75.3 KB Created: 2021-03-28 01:07:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-02
MD5: c95485241ab16b774eb8eb6b5248f5af SHA-1: b155f169b296b919932f9324b4b711b3149c6d55 SHA-256: 3650b18533799d45b43f7e2defabe0aa09d0baa36a3255ff4065480d3796d250
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, which is likely a phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to be a deceptive lure related to search results, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jumiwimov.ru/award?keyword=quran+yaseen+malayalam+pdf PDF link annotation
    • http://presalon.xyz/how_do_i_contact_fedloanknnis.pdfIn PDF document text
    • http://reduslim-europa.site/graco_pack_n_play_mattress_measurements88pcj.pdfIn PDF document text
    • http://kijekidajefi.getenjoyment.net/52095424339.pdfIn PDF document text
    • http://jologedeb.getenjoyment.net/73271209995.pdfIn PDF document text
    • http://gatorama.site/ge_toaster_oven_knobnjqye.pdfIn PDF document text
    • http://design-kvartira.info/what_is_the_fastest_internet_speed_offered_by_verizon_fios0vulv.pdfIn PDF document text
    • http://rodisawikikofu.medianewsonline.com/59092862422.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415308/normal_6057fdae88a9b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410694/normal_601a71bf1456f.pdfIn PDF document text
    • https://tirusagoxavux.weebly.com/uploads/1/3/5/3/135329940/08ecf2c.pdfIn PDF document text
    • https://zaluzukefajol.weebly.com/uploads/1/3/5/4/135400247/940ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380863/normal_5fec47153102b.pdfIn PDF document text
    • http://pozuvixa.getenjoyment.net/fenexas.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xeroguru/foil_lined_paper_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/faduxodiwo/76974153140.pdfIn PDF document text
    • https://s3.amazonaws.com/viromibukoleliw/bedazzle_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/xapidajovaji/tidowogulexezubitabokesu.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubifirigevi/comcast_remote_codes_for_element_roku_tv.pdfIn PDF document text
    • https://s3.amazonaws.com/pulujolatepuv/excell_2500_psi_pressure_washer_vr2522_parts.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_off0000e43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE43B 5348 bytes
SHA-256: 06f5c4e1312a24e2b00eb4de8db56017bfe539fac984db42515c963c7295fcc9
font_01_sfnt_off0000f65b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF65B 12528 bytes
SHA-256: e09d853bc19c8aaef3b3a45bf96169237c794e89da9cf464589c0bbc10a9b898

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