Malicious PDF — malware analysis report

Static analysis result for SHA-256 edc37c706bfdb857…

MALICIOUS

PDF

66.4 KB Created: 2021-03-03 11:59:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1fe2a16659ea43264b95c131bed61361 SHA-1: 97809d154b32e14db63d0eb6845b4ff1e005b5c2 SHA-256: edc37c706bfdb8577fb703d2b0a5102722ca668ba1fd1f1b3fb4eb1cdbec0ba7
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jottigo.ru/wix?keyword=kuromi+sanrio+shirt PDF link annotation
    • https://cdn.sqhk.co/jovowosifo/ghngflj/bobanimixanatoji.pdfIn PDF document text
    • https://cdn.sqhk.co/xelalizogim/bheeKjb/bomberman_classic_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/tubafejog/jSdBthb/lubexazeririwopoxafo.pdfIn PDF document text
    • http://igclienteam.com/mivadegurakuxa4kutp.pdfIn PDF document text
    • http://gayerkan.com/95043095000aqjvs.pdfIn PDF document text
    • https://cdn.sqhk.co/kuderoxuz/uUahdjd/mulejujunaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445532/normal_601ce05c44ab9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379731/normal_602527c1cdb1a.pdfIn PDF document text
    • https://cdn.sqhk.co/sifalavuxozo/gZCj5Si/litosotagukewazerakeku.pdfIn PDF document text
    • http://gavowobow.iblogger.org/31146528046.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wipapirub.epizy.com/arabic_numbers_1_to_100.pdfIn PDF document text
    • https://s3.amazonaws.com/wukara/tijutumagedosijazovika.pdfIn PDF document text
    • http://diveruwafulebes.epizy.com/hey_what_s_up_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/luborinizu/sad_girl_images_hd_free.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/m365_bms_apk.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_off0000c830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC830 4860 bytes
SHA-256: 12960b56fb9f92e203762e7a733afbc833d903079814c9917d8e119c93bb1268
font_01_sfnt_off0000d88c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD88C 10704 bytes
SHA-256: f84d5fe82706973af5e1a467fed03c8c041f0f20ca8be4aecafc9dcf7a10bcc0