Malicious PDF — malware analysis report

Static analysis result for SHA-256 fe83b8eefcf7eab2…

MALICIOUS

PDF

73.3 KB Created: 2021-02-20 15:37:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 37d59be6af465891115331b7e1c4f491 SHA-1: 03de686a0685cb9c781dbcafc7b85273d9211cf1 SHA-256: fe83b8eefcf7eab256e21d4b25a1baaa081090f027715c5d7317c86d9e999a2f
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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.
  • 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.
  • 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://crophysi.ru/wix?keyword=giant+monster+vs+small+human+meme+template In PDF document text
    • http://beveram.66ghz.com/how_much_is_a_ninja_blender_at_walmart.pdfIn PDF document text
    • https://cdn.sqhk.co/gedodupem/segcJgf/gun_sound_effects_pack.pdfIn PDF document text
    • https://gadudomarun.weebly.com/uploads/1/3/4/7/134705140/1b196e9.pdfIn PDF document text
    • https://cdn.sqhk.co/gabixeme/n3pIWid/rock_and_gravel_tucson_az.pdfIn PDF document text
    • https://cdn.sqhk.co/wujamufaw/hgciRPp/96298539771.pdfIn PDF document text
    • https://cdn.sqhk.co/jakatote/cojbzgj/98842644808.pdfIn PDF document text
    • https://tosopolugo.weebly.com/uploads/1/3/4/4/134440872/samitavukobabil-pavuruv.pdfIn PDF document text
    • https://cdn.sqhk.co/xixumobun/mALe5hi/king_s_raid_ishi_wo_tsugumono-_tachi_crunchyroll.pdfIn PDF document text
    • https://lumovomudin.weebly.com/uploads/1/3/4/7/134704265/2186959.pdfIn PDF document text
    • https://dubezotamepaloj.weebly.com/uploads/1/3/5/2/135297843/wiwilenufetisisepimu.pdfIn PDF document text
    • https://cdn.sqhk.co/wabasenenem/OPhegdx/lofewisisafusesuruzogeru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zozoresupiz.epizy.com/k_g_f_photos_hd.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/297737767.pdfIn PDF document text
    • http://gozulejawefufap.epizy.com/cheat_engine_6._5_1.pdfIn PDF document text
    • https://s3.amazonaws.com/xirixepo/what_does_gleam_in_my_fathers_eye_mean.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/bulixejunufosuluzugum.pdfIn PDF document text
    • https://s3.amazonaws.com/fofeguj/cover_lagu_harusnya_aku_yg_disana.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/pubujiwafekaranutoma.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_off0000e234.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE234 5152 bytes
SHA-256: dfdd9b9796bc9b6a8f941dbc523504ea730049ee2caabd19110a75080530efae
font_01_sfnt_off0000f393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF393 10780 bytes
SHA-256: 4616ac0542f52306f97500b51c407a5b7e5d43774e866938de882c3de455ce5a

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