Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e7087ae89213060…

MALICIOUS

PDF

81.5 KB Created: 2021-03-13 15:06:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 5f353193719d05e0f7f4d385fb0e6abe SHA-1: b7e6435a1e8909765f8f5b94d25d7268f8da26e0 SHA-256: 1e7087ae89213060e22e51458ecdfc35679b9247b366591e70e0592b91690669
126 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The PDF contains numerous embedded URLs, many pointing to disposable hosting or link farms, suggesting a phishing or malware distribution scheme. The presence of external URIs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 5

  • 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.
  • 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://pelibifir.ru/award?keyword=atlas+copco+stationary+air+compressors+pdf PDF link annotation
    • http://nuneriwu.22web.org/hot_dance_music_video_2018.pdfIn PDF document text
    • https://cdn.sqhk.co/bokupajokim/geWCaND/days_cash_on_hand_calculation_for_hospitals.pdfIn PDF document text
    • https://cdn.sqhk.co/gukisafuw/hijhejf/xeromupe.pdfIn PDF document text
    • https://cdn.sqhk.co/fujotojaxob/hjgfrih/bisobexifa.pdfIn PDF document text
    • https://cdn.sqhk.co/tamurikubol/hiaFmjh/chanukah_song_part_3.pdfIn PDF document text
    • https://cdn.sqhk.co/sujoxeti/hhcrjiD/21289137405.pdfIn PDF document text
    • https://cdn.sqhk.co/zefafulolit/jajfMij/coupon_codes_for_walmart_grocery.pdfIn PDF document text
    • http://ruxuzosok.mywebcommunity.org/20085959380.pdfIn PDF document text
    • https://cdn.sqhk.co/notigagamu/M3iaNhb/make-_up_meaning_in_kannada.pdfIn PDF document text
    • http://pifafixejizigu.scienceontheweb.net/xixovilulujupuvot.pdfIn PDF document text
    • http://fimuvukabiwijad.22web.org/objective_and_subjective_language_worksheets.pdfIn PDF document text
    • https://cdn.sqhk.co/fipufose/hhjQjfs/3890633263.pdfIn PDF document text
    • http://parazepurafeza.medianewsonline.com/analytic_geometry_notes.pdfIn PDF document text
    • https://cdn.sqhk.co/fufowomusixi/jinUq7d/dugenasizokupunuw.pdfIn PDF document text
    • https://cdn.sqhk.co/dufelogaruf/jdjbhg9/foludevokuv.pdfIn PDF document text
    • http://juwaniwabi.medianewsonline.com/call_center_job_cv.pdfIn PDF document text
    • https://cdn.sqhk.co/zenipijujate/Dibtzic/blood_money_movie_2020.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://wisunabowogus.epizy.com/alimentos_transgenicos_ensayo.pdfIn PDF document text
    • http://jinelod.rf.gd/conversin_mm_a_pulgadas.pdfIn PDF document text
    • http://pesogulovuxolub.rf.gd/46893361983.pdfIn PDF document text
    • http://jolatuziguxobe.rf.gd/unisa_application_2020.pdfIn PDF document text
    • http://wewuvizab.epizy.com/zombie_catchers_mod_android_1._com.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f363.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF363 5180 bytes
SHA-256: f98bee8679e2d5fb12baa3ff198dc3f90a94e527fa70295475113a1746ebe4e4
font_01_sfnt_off000104e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104E4 11068 bytes
SHA-256: d978cc6d91f0d3de1f6b5030a8530008403e7ba809c7d562bb7589886884e0f8
font_02_sfnt_off00012a39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12A39 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2

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