Malicious PDF — malware analysis report

Static analysis result for SHA-256 a7cc73c32477a35c…

MALICIOUS

PDF

71.2 KB Created: 2021-02-27 18:06:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9fe558a7db89584ec10596d558fdea7f SHA-1: 9ac451afb506a7669eb033ad10fb691af647325a SHA-256: a7cc73c32477a35ce8af4bce7b236bdff2e1118b60c21818e2444030bcaffff8
126 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
  • 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://golowaki.ru/wix?keyword=cherry+head+tortoise+breeders PDF link annotation
    • https://cdn.sqhk.co/zaviresodew/jaTQtie/retro_nes_emulator_classic.pdfIn PDF document text
    • https://kipusisuvosa.weebly.com/uploads/1/3/1/4/131406826/4900e811.pdfIn PDF document text
    • https://jenafowumavadas.weebly.com/uploads/1/3/1/4/131437472/8196960.pdfIn PDF document text
    • https://xelexezeni.weebly.com/uploads/1/3/0/7/130740222/soboxof-nakulaxitatuf-mukukon.pdfIn PDF document text
    • https://pakupefo.weebly.com/uploads/1/3/0/7/130776676/2510159.pdfIn PDF document text
    • http://dodemul.mygamesonline.org/multiple_streams_of_income_ideas_2021.pdfIn PDF document text
    • https://kololopobiro.weebly.com/uploads/1/3/4/8/134853362/vepisajitujujakor.pdfIn PDF document text
    • https://dipediras.weebly.com/uploads/1/3/0/7/130739778/rexedexorugaj.pdfIn PDF document text
    • https://dojilosadokadog.weebly.com/uploads/1/3/4/8/134890500/9670933.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450242/normal_5fd79980b2903.pdfIn PDF document text
    • https://cdn.sqhk.co/lexebogefaj/f575Djd/60742727103.pdfIn PDF document text
    • https://cdn.sqhk.co/sepunaro/iaKjgjf/tawaforutenojapo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zikoliduxa.atwebpages.com/2871461633.pdfIn PDF document text
    • http://palelezugob.onlinewebshop.net/jojis.pdfIn PDF document text
    • https://s3.amazonaws.com/xoguwavosuje/28690903120.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_off0000da25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA25 5028 bytes
SHA-256: fa5c1c0df62f08351556ed82704d51dafe8319d8e4c19ef713c1a431301dba0f
font_01_sfnt_off0000eb32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB32 10644 bytes
SHA-256: 0d205646455b6396536bb715a147bf0817a900f459b229f2fc97d036ed451afd

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