Malicious PDF — malware analysis report

Static analysis result for SHA-256 9b52aba9be53e8e7…

MALICIOUS

PDF

82.7 KB Created: 2021-02-28 02:42:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 31a60c64b8bb9afeb18efa74162455a9 SHA-1: a66899309b43c034adc684cc64c6fb0bb7e26f97 SHA-256: 9b52aba9be53e8e71f2c9a87428065dda8c939953453c5c00dd9a62f059878cd
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that mimics a search engine result, likely to trick users into visiting a malicious site. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://maypoin.ru/123?utm_term=what+are+the+different+textures+of+natural+black+hair PDF link annotation
    • https://cdn.sqhk.co/molodomo/jehaidC/screen_stream_mirroring_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tategupet/jg3TTgc/bunefutemimamuvufa.pdfIn PDF document text
    • http://raguvigawak.mypressonline.com/zikevisarubavibusawabu.pdfIn PDF document text
    • http://ligugiban.scienceontheweb.net/18941390144.pdfIn PDF document text
    • http://gepexoliv.medianewsonline.com/science_and_sanity.pdfIn PDF document text
    • http://importants.space/xevekazesadt8dzn.pdfIn PDF document text
    • http://cheapestshop.xyz/makolobipebavgjor.pdfIn PDF document text
    • http://5euro.info/anemia_de_celulas_falciforme_caracteristicas2msxs.pdfIn PDF document text
    • http://kukushka.space/does_every_gun_in_rainbow_six_siege_have_black_iceb4fcc.pdfIn PDF document text
    • http://xenalebosob.scienceontheweb.net/mumelime.pdfIn PDF document text
    • https://cdn.sqhk.co/xeduwukaxusa/jdjchou/art_gallery_near_me.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
    • https://s3.amazonaws.com/pewibim/31442256849.pdfIn PDF document text
    • https://s3.amazonaws.com/wunojipu/pugerefupemuseguxubunedor.pdfIn PDF document text
    • https://s3.amazonaws.com/kewakuko/man_group_chief_information_officer.pdfIn PDF document text
    • https://s3.amazonaws.com/pipaneku/mlb_the_show_19_online_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/sinadi/badujesisunipofaxefu.pdfIn PDF document text
    • https://s3.amazonaws.com/pujirageg/my_talking_tom_2_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/webipejonavuv/juwevifipujozepufemafem.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f9de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9DE 5276 bytes
SHA-256: 439323154c1f4ce7ef7d0763c2bac838f78cec04ff69805e9fb7c757500a48d3
font_01_sfnt_off00010bd6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD6 10220 bytes
SHA-256: 5d7c0e9737949ac5aba2b7cfa36af929deaf1bdd71e9a47ec221d42fc22ba93d
font_02_sfnt_off00012edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EDD 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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