Malicious PDF — malware analysis report

Static analysis result for SHA-256 676dd7851fdb93b5…

MALICIOUS

PDF

73.3 KB Created: 2021-03-23 09:31:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 983be69099ea32c54dc3fa1c9e7698b6 SHA-1: 53f86d7d2b548c183219a454af22ef33375d7ef8 SHA-256: 676dd7851fdb93b53f943e879e6e20af08366da1471957c0861acc094e81f9da
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xezojetit.ru/wix?keyword=honda+eg+3000+generator+specs PDF link annotation
    • http://cancandance.org/79325194146trkfs.pdfIn PDF document text
    • http://nexekeb.iblogger.org/gavijotilorojem.pdfIn PDF document text
    • http://5coupon.info/sigmund_freud_civilization_and_its_discontents_1930lfde2.pdfIn PDF document text
    • http://wowit.pro/bsc_1st_year_computer_science_book_downloadcs407.pdfIn PDF document text
    • http://repair-monokoles.ru/42581689018af16h.pdfIn PDF document text
    • http://bijatutolime.iblogger.org/49011631928.pdfIn PDF document text
    • http://bufo.online/how_can_i_get_free_rp_in_league_of_legendslij42.pdfIn PDF document text
    • http://iciko.xyz/86519171151l4zor.pdfIn PDF document text
    • http://normab-id.com/81740373687055wk.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/144f64b7-9ae9-4aca-86f8-01cfeabd58d4/not_your_cup_of_tea_meaning_in_idioms.pdfIn PDF document text
    • https://s3.amazonaws.com/mejobu/manual_de_acreditacion_en_salud_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/mutirexa/xewivimujetenosejosope.pdfIn PDF document text
    • https://s3.amazonaws.com/wokesabisevo/rezufolizulu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/714087c9-3448-498c-87a5-ff4120ddd552/bike_running_lean_or_rich.pdfIn PDF document text
    • https://s3.amazonaws.com/megelugik/alien_shooter_apk_1._1._6.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/70fb743a-5688-44ac-b22f-fd29e165c9fc/60806074808.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/ansible_ini_file_format.pdfIn PDF document text
    • http://wafezejub.epizy.com/84384034022.pdfIn PDF document text
    • https://s3.amazonaws.com/zamuriza/vivah_film_song_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f51f4d34-763c-4b8b-94a2-f85c5d629798/english_composition_course.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e3c3f1c-543a-4c99-8459-581250bfdab2/draw_curved_arrows_to_show_the_mechanism_of_deprotonation_that_generates_the_enolate_anion.pdfIn PDF document text
    • http://jitimixilu.epizy.com/zupikisivopalutofomal.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_off0000e08b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE08B 5476 bytes
SHA-256: 4e8d1a076c83d8d3fcb7fae9caadf1a9524781eb558cb42f280107691c46188c
font_01_sfnt_off0000f334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF334 10740 bytes
SHA-256: 83df9ffadd9f86063b32258daa0bad4ce5d9ee90cd4530369a0f34135109f0e3

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