Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be75400f98accf8…

MALICIOUS

PDF

71.8 KB Created: 2021-02-21 09:11:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 46b219641f71de7019f353ec31c4ea97 SHA-1: 5a52d6d7fadb77b80ce8f885e54a9637c33eb234 SHA-256: 1be75400f98accf87d48fb8adfb0a0e729eb513ca075eb3325949839c2e054ad
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=embry+call+x+reader+imprint PDF link annotation
    • https://cdn.sqhk.co/pivokazi/jgeibiM/mijimafodalotutexusaj.pdfIn PDF document text
    • https://cdn.sqhk.co/mewivupa/26Bjigh/losijubufuvitutakupojezok.pdfIn PDF document text
    • https://cdn.sqhk.co/vuxevabuvix/gf9heVS/fezejumoj.pdfIn PDF document text
    • https://gimuloge.weebly.com/uploads/1/3/0/7/130775506/5037673.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/4pejf5b/biduzozawedibopi.pdfIn PDF document text
    • https://cdn.sqhk.co/jafakitiw/wgcghgj/25707899545.pdfIn PDF document text
    • https://begafirezudafo.weebly.com/uploads/1/3/1/4/131438667/gexiku.pdfIn PDF document text
    • https://cdn.sqhk.co/jugomuzuteb/ELjbqge/23804017087.pdfIn PDF document text
    • https://cdn.sqhk.co/bilexodofose/fI3ghfK/78184900113.pdfIn PDF document text
    • https://mikotefi.weebly.com/uploads/1/3/2/6/132695671/tevolu_vitaxa_jotoxowo_madumowekixaza.pdfIn PDF document text
    • https://cdn.sqhk.co/sevigexew/Pl0gjge/super_mario_maker_2_3d_maze.pdfIn PDF document text
    • https://gobunelesivuwol.weebly.com/uploads/1/3/2/3/132303092/d51cad33bd0c.pdfIn PDF document text
    • http://peuer.xyz/963792968932dp2z.pdfIn PDF document text
    • http://tesar-krd.ru/guzulifunhna8j.pdfIn PDF document text
    • http://arfeshome.com/percy_jackson_greek_gods_online_readotsk3.pdfIn PDF document text
    • http://urott-hu.com/ptcb_exam_study_guideb4ydv.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://viveguwoxifug.epizy.com/rugazedateriw.pdfIn PDF document text
    • http://miwofalixi.rf.gd/76074898752.pdfIn PDF document text
    • https://s3.amazonaws.com/jojitagifuva/mob_grinder_schematics.pdfIn PDF document text
    • https://s3.amazonaws.com/zafirawit/aapc_cpc_study_guide_2019.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_off0000ddca.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDCA 5308 bytes
SHA-256: e1f27a87f1835907cafaa2a80a6406c46513feb466c345c7f7f1d1fb29a3a179
font_01_sfnt_off0000efcc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFCC 10112 bytes
SHA-256: 55f180fc56835df4631ae0484308ab5a75938d0262e1b3116be53da3c78d1c77

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