Malicious PDF — malware analysis report

Static analysis result for SHA-256 48e634ef72fbeb81…

MALICIOUS

PDF

76.0 KB Created: 2021-04-04 23:36:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 8482f6c4acead200e284379f315f9b64 SHA-1: 1529814747849c5a301b44249de8f7450b9e0fda SHA-256: 48e634ef72fbeb81382417ccbfcfa05c4a34dd83ac4a112eec6111400db0b7e8
156 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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 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.
  • 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://gimoguvi.ru/strik?utm_term=canadian+red+cross+first+aid+%2526+cpr%252Faed+instructor+certificate PDF link annotation
    • http://gedadekenoz.mywebcommunity.org/sejarah_berdirinya_bani_umayyah.pdfIn PDF document text
    • https://cdn.sqhk.co/gatezoru/ixFrih5/real_motors_llc.pdfIn PDF document text
    • http://fijexojor.getenjoyment.net/certificado_de_origen_tlcan_formato.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/dowavapizipegizaxorov.pdfIn PDF document text
    • https://rudetotupolukoj.weebly.com/uploads/1/3/2/6/132681245/famexigasuweme-negokagaba-jadax.pdfIn PDF document text
    • http://tuworiki.22web.org/4790940721.pdfIn PDF document text
    • http://ditugivovuf.22web.org/journal_appraisal_template.pdfIn PDF document text
    • https://cdn.sqhk.co/gezefesete/gdqsbgE/tepiwosoregufi.pdfIn PDF document text
    • http://tokesuditetu.getenjoyment.net/longman_toefl_practice_test.pdfIn PDF document text
    • http://mareson.getenjoyment.net/bupoxeruxe.pdfIn PDF document text
    • http://felidefewipikig.22web.org/81753048896.pdfIn PDF document text
    • https://cdn.sqhk.co/bawevabob/ijghAgc/fizedum.pdfIn PDF document text
    • https://bexajaruxomape.weebly.com/uploads/1/3/1/3/131384789/7775227.pdfIn PDF document text
    • https://miruvogix.weebly.com/uploads/1/3/1/4/131408245/doxugipom.pdfIn PDF document text
    • http://tapozifokun.mywebcommunity.org/52412533636.pdfIn PDF document text
    • http://famozosivupiwij.sportsontheweb.net/nokorifudexufuduxiwevixu.pdfIn PDF document text
    • http://nepoxiduvilej.scienceontheweb.net/15262457066.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/nagudo/mibosasolipabofusufedut.pdfIn PDF document text
    • https://s3.amazonaws.com/dewutexorob/wurebemegikab.pdfIn PDF document text
    • https://s3.amazonaws.com/sojebelevenex/48000228130.pdfIn PDF document text
    • https://s3.amazonaws.com/defipedibe/51064356272.pdfIn PDF document text
    • http://zesafemumibow.myartsonline.com/how_much_water_can_my_dog_drink.pdfIn PDF document text
    • https://s3.amazonaws.com/vedexajawo/84115573780.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000eab8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB8 4888 bytes
SHA-256: 12fa166af5cf46ff75458674162353d910d892000590303d3a81d78b413e0212
font_01_sfnt_off0000fb60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB60 11024 bytes
SHA-256: baa4b4ed4e79e60690cdccbd40b28252883098adc60da02634a24a0b11580bb9

Open this report in the interactive analyzer, or submit your own file for analysis.