Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f768aa4d8b6fee1…

MALICIOUS

PDF

72.3 KB Created: 2021-03-07 00:55:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: dc0a72a669d176aeb80881d27e2011c5 SHA-1: 5b3e7f2fc53808880781b89409e9c46fae46581f SHA-256: 8f768aa4d8b6fee106faac08011465e227ee9e40fac7b240add8aecd13d6077d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://gimoguvi.ru/wix?keyword=yamaha+receiver+rx-v573+manual PDF link annotation
    • http://momentshop.website/wijobokilawijemowipsd7a.pdfIn PDF document text
    • http://junumidutuzakox.getenjoyment.net/22295967878.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387427/normal_5fdae3a82c97a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481539/normal_602205d637a3a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460057/normal_5fe711c13d280.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480393/normal_5fec77ab5c2d2.pdfIn PDF document text
    • http://kapovulup.mywebcommunity.org/89923782954.pdfIn PDF document text
    • http://bestsalestoday.xyz/pogoxepobifewowbgcbd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409396/normal_5fe6fe7f00a7c.pdfIn PDF document text
    • http://afracheat9.xyz/pokemon_sun_rom_3ds_download_androidfmcjh.pdfIn PDF document text
    • http://reduslim-eu.site/varotanesqzi10.pdfIn PDF document text
    • http://kavademive.sportsontheweb.net/rixavugudugukuvibipabus.pdfIn PDF document text
    • http://hamsterbig.com/crane_cool_mist_humidifier_no_mist_coming_outlwrrc.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/jujadodedaruxix/masadirudetagozej.pdfIn PDF document text
    • http://nejimafalun.onlinewebshop.net/daniel_kahneman_thinking_fast_and_slow.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/32952300983.pdfIn PDF document text
    • https://7ef5d8b8-74ac-4e0a-b0a0-fa61ca6462a8.filesusr.com/ugd/23e9be_434f5c8de24a43b2b488e48f01bca1c1.pdf?index=trueIn PDF document text
    • http://xotaferuju.myartsonline.com/bissell_spot_clean_proheat_pet_hose_replacement.pdfIn PDF document text
    • https://9e77dbea-16d6-438e-9859-4a68c5388828.filesusr.com/ugd/3225da_75f64ca121cb45a7aaa5906f15633d06.pdf?index=trueIn PDF document text
    • http://kawerulim.onlinewebshop.net/gedidejatoka.pdfIn PDF document text
    • https://s3.amazonaws.com/xufoxorog/katojapuvix.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_off0000d529.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD529 5352 bytes
SHA-256: 3c9e54fe35fc839e03e12284496b2f2b50a8fd9241382e93bdaa02ac236d2147
font_01_sfnt_off0000e752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE752 14456 bytes
SHA-256: 98c1b3ffcca6d28eba3bf9d53588f592879c6de6a22870c6de871f7e616f1736

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