Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6bd2afe3fc07948…

MALICIOUS

PDF

81.6 KB Created: 2021-03-25 23:57:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8df264cd5ec4bfe1d483ce03eaba66db SHA-1: 2e2f19ba796cd2e1140c335613e64de3ebd0175d SHA-256: c6bd2afe3fc0794841f02e10aadc09cd255e06b83c956123f69d3d055ad7b333
96 Risk Score

Malware Insights

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

The file is identified as malicious by ML classifiers and ClamAV, with a specific detection name indicating it's a phishing trojan. An embedded URI points to a suspicious domain, likely serving as a lure or a download source. The document body, though partially corrupted, suggests a pretext related to financial services to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://zajinet.ru/aws?utm_term=list+of+best+stock+brokers+in+pakistan
    • https://mologikonazo.weebly.com/uploads/1/3/4/7/134706863/vebuwomunora.pdf
    • http://sibatike.getenjoyment.net/gap_trading_strategies_stock_market.pdf
    • https://gapivawaki.weebly.com/uploads/1/3/1/8/131857152/kubujijoti.pdf
    • https://zifokodogip.weebly.com/uploads/1/3/1/3/131398222/komaniwasezila-winifigoraxus.pdf
    • http://fawaxifiwuzodil.scienceontheweb.net/vaxexafoxo.pdf
    • https://dimakevumegipex.weebly.com/uploads/1/3/4/3/134352849/tokivunifi-xifexesax.pdf
    • http://puwinowelin.medianewsonline.com/mac_quartz_filter.pdf
    • http://zanovekolasin.mywebcommunity.org/baby_registry_checklist_babycenter.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/debiwelof/is_the_canon_pixma_mg2550s_wireless.pdf
    • https://a2ae8793-a99f-480d-a3bc-849ef63d34f7.filesusr.com/ugd/cc207a_13dde53778cd4fe9bdbe9c963b74ad77.pdf?index=true
    • http://jewobadal.epizy.com/goberog.pdf
    • https://s3.amazonaws.com/wuniku/magento_framework_view_element_template_context_context.pdf
    • https://s3.amazonaws.com/simujix/bleachers_rollercoaster_m4a.pdf
    • https://afa032df-bfad-47da-a9c8-c79260182993.filesusr.com/ugd/6f9b04_fc324670cbc842a4aa276027e9d59dcd.pdf?index=true
    • https://f579be4a-c2ec-451d-94ee-532237c06880.filesusr.com/ugd/9f6a24_e9dc9bcbf81844119f43ffb88ae5d55f.pdf?index=true
    • https://s3.amazonaws.com/bolovopizonuki/89989480696.pdf
    • https://161abad2-7de2-49bb-9904-d6e2a620a662.filesusr.com/ugd/2eec94_7a5249871c2c41ddbaa49e44570eb319.pdf?index=true
    • http://junikul.epizy.com/pimifaforosib.pdf
    • https://s3.amazonaws.com/vatosolikijike/farizelanujulu.pdf
    • https://s3.amazonaws.com/jonora/nebuvuzojakogimado.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010207.bin
9b58e733c108c6a72aa2b762743f73134e82949a38cb5edd6b12c665de265e21
pdf-font-stream PDF embedded font (sfnt) at offset 0x10207 5124 bytes
font_01_sfnt_off00011387.bin
ecabd1bcf7483684c838a18d8aa731541cc6bc20b1946f72f563da5f295e2ffb
pdf-font-stream PDF embedded font (sfnt) at offset 0x11387 11088 bytes