Malicious PDF — malware analysis report

Static analysis result for SHA-256 652f4d3a13a3d923…

MALICIOUS

PDF

73.0 KB Created: 2021-03-04 22:38:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 995f7963d98f3e4cc174ba423c342c5e SHA-1: f38578d38f0b181bca70ce9d631c5dfb06f68c26 SHA-256: 652f4d3a13a3d92380e2f7d8751c34c762d2102f1d1a76fb2f04cfa26ebc0f50
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://midufefew.ru/wix?keyword=jcheater+gta+3+apk+mirror PDF link annotation
    • https://nirejabepifu.weebly.com/uploads/1/3/4/2/134266024/12fac.pdfIn PDF document text
    • https://fozikubovofow.weebly.com/uploads/1/3/4/8/134897471/17e9668a.pdfIn PDF document text
    • https://cdn.sqhk.co/fuwifemi/ijXiahb/19766979978.pdfIn PDF document text
    • http://shoop-ff.ru/64164539112eayyy.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380072/normal_5fe5acc02d68f.pdfIn PDF document text
    • https://cdn.sqhk.co/toxinize/iWjiSij/59427363199.pdfIn PDF document text
    • https://cdn.sqhk.co/resozasevej/3zgghf6/42808267049.pdfIn PDF document text
    • https://cdn.sqhk.co/risenulowo/ajbHEij/tatedija.pdfIn PDF document text
    • https://vopilexazum.weebly.com/uploads/1/3/2/7/132740267/rafefepinemodejizina.pdfIn PDF document text
    • https://belanuxaru.weebly.com/uploads/1/3/4/6/134670531/00df8d3b31.pdfIn PDF document text
    • https://botironolimuvot.weebly.com/uploads/1/3/1/3/131380397/wukezopu-bavit.pdfIn PDF document text
    • http://uspehdnyaaxyz.xyz/sound_tone_downloadgfcv2.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369655/normal_5fc5835214cac.pdfIn PDF document text
    • http://construt.site/spelling_bee_games_for_grade_27i7vj.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sefeluxezilire.epizy.com/luxaripekazabatasebur.pdfIn PDF document text
    • https://f38be386-5799-403b-9303-fb121113655a.filesusr.com/ugd/6f1aa7_ad8a50a20caa4d7cb0a79df82b0e2180.pdf?index=trueIn PDF document text
    • https://933fff22-c348-4ab6-8de5-3f271b7148fa.filesusr.com/ugd/78c764_4df4418eac4d488b8f8020edac44f5c0.pdf?index=trueIn PDF document text
    • http://tobewopuma.rf.gd/zoxuwusufivijijilutigixid.pdfIn PDF document text
    • https://8860adff-7f0b-4cf3-a358-cdd560dff136.filesusr.com/ugd/625844_8e862c0bedca49e8989d88b4bc056dbc.pdf?index=trueIn PDF document text
    • http://budezeja.rf.gd/australian_tourist_visa_application_form_indonesia.pdfIn PDF document text
    • http://bibikefogive.epizy.com/zomaketesegilodobelarij.pdfIn PDF document text
    • https://9a60fab3-6fb0-4be7-9305-b2e3cc44d963.filesusr.com/ugd/811c4f_ed9d3df431044a17bf271f24c29720f2.pdf?index=trueIn 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_off0000e11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11F 5352 bytes
SHA-256: d84972939da3d3a4fd2511fdad1eb96b0c937167f5d3dbf6a534282825bb466b
font_01_sfnt_off0000f334.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF334 10448 bytes
SHA-256: 73f861ecb1cd8376f676d0571156a5438d0d92174a03b459e3118c405decdcf7

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