Malicious PDF — malware analysis report

Static analysis result for SHA-256 01daedccd2516639…

MALICIOUS

PDF

72.5 KB Created: 2021-04-18 14:29:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 378396a96ddecda4be8b1e4a2d2c3ce7 SHA-1: 2876cac268e67979a73d811035f49a2f997c809e SHA-256: 01daedccd2516639932b1bf099fd594dce55002faa999c62dc2982f11c3179cb
184 Risk Score

Malware Insights

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

This PDF document contains embedded links that redirect to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though partially corrupted, suggests a lure related to product pricing, likely intended to deceive users into clicking the malicious links. The ML classifier and ClamAV detection further support its malicious nature, classifying it as phishing and malware.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/strik?utm_term=harga+batre+samsung+ce0168 In PDF document text
    • https://mokoluwi.weebly.com/uploads/1/3/4/5/134595511/5524895.pdfIn PDF document text
    • http://lomigakorak.getenjoyment.net/atresia_de_la_arteria_pulmonar.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478398/normal_6052ce2ba82ab.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418973/normal_5ffc67a84039f.pdfIn PDF document text
    • http://hempmap.ru/ejercicios_notacion_cientifica_2_eso_con_solucionestnwhp.pdfIn PDF document text
    • http://brumbum2.xyz/hp_envy_4500_wifi_problemslc0iw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426816/normal_6041babb1e185.pdfIn PDF document text
    • http://zovofuti.mygamesonline.org/5164324787.pdfIn PDF document text
    • https://gixujadimi.weebly.com/uploads/1/3/4/7/134708567/lidoki.pdfIn PDF document text
    • http://ligugiban.scienceontheweb.net/24_hour_clock_worksheet.pdfIn PDF document text
    • http://vowufijetapiko.sportsontheweb.net/how_to_invest_in_indian_stock_market_from_canada.pdfIn PDF document text
    • https://zadisoro.weebly.com/uploads/1/3/4/5/134525292/kurija.pdfIn PDF document text
    • http://idealslimitaly.site/what_is_the_newest_kindle_fire_model2lwwb.pdfIn PDF document text
    • http://artistichomesolutions.com/command_and_conquer_ultimate_collection_megaa1jbo.pdfIn PDF document text
    • http://kleomaften.online/dell_optiplex_gx620_pentium_4_ht_specsuh9my.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450630/normal_5fd25931a9b46.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/xezujuxoz/auto_ingles_total.pdfIn PDF document text
    • https://s3.amazonaws.com/tofizo/rotofasaxepotijasomibir.pdfIn PDF document text
    • https://ca7c05ed-d233-4774-9cf9-08ff86aa6c73.filesusr.com/ugd/b42fd6_8b65fe8bde01439dbc4398a2122fb777.pdf?index=trueIn PDF document text
    • http://wokarodefi.onlinewebshop.net/mewofeziniwela.pdfIn PDF document text
    • https://297de083-771a-4730-a3b8-a2afe8c7d209.filesusr.com/ugd/47424f_c64b4e3de848454ea4707e69bfc07401.pdf?index=trueIn PDF document text
    • https://4ec63ec4-77bf-4499-900e-7c522af20654.filesusr.com/ugd/35bdb9_c79a223c6ea44abf810d45d443ecac6c.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_off0000db85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB85 5728 bytes
SHA-256: 46626df1692ae73843b2abdddb2e685e0f1fc1eac9b0723a1422cf8a7e43579b
font_01_sfnt_off0000eef2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEF2 11092 bytes
SHA-256: 40105852a791ae099796cea402af4759828670374aaaef42a42cdacda092b299