Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2bbc61f92226184…

MALICIOUS

PDF

76.0 KB Created: 2021-01-24 10:12:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 26b588a0b29cec55ecba0559a37be9f0 SHA-1: e56e645600b990d6563db62b220e31ef366120de SHA-256: a2bbc61f9222618479278bd008cce216244e9d362efe24784c841d1ac29ef2e8
134 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 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://seumenha.ru/aws?utm_term=project+monitoring+and+evaluation+report+sample PDF link annotation
    • https://cdn.sqhk.co/xesofosirija/ajfgjhd/sumutadap.pdfIn PDF document text
    • https://telidububiz.weebly.com/uploads/1/3/1/4/131452987/fifet.pdfIn PDF document text
    • https://wubugijesagaro.weebly.com/uploads/1/3/1/4/131437106/nerofoxonukiguxa.pdfIn PDF document text
    • https://cdn.sqhk.co/sugezigo/ghgaicZ/jowezasezawuwefug.pdfIn PDF document text
    • https://site-1204767.mozfiles.com/files/1204767/camo_poncho_groundsheet.pdfIn PDF document text
    • https://cdn.sqhk.co/bivatesiromu/ieridjf/cute_yellow_wallpapers.pdfIn PDF document text
    • https://cdn.sqhk.co/gubujurit/jiDfiel/92254152515.pdfIn PDF document text
    • https://site-1168046.mozfiles.com/files/1168046/sogagidobabawugosewaxubig.pdfIn PDF document text
    • https://site-1188796.mozfiles.com/files/1188796/61233715129.pdfIn PDF document text
    • https://site-1168029.mozfiles.com/files/1168029/retroarch_ps2_snes_core.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxozowaki/j2hgbuI/85065831931.pdfIn PDF document text
    • https://deluwibenarut.weebly.com/uploads/1/3/1/3/131382693/d50d2c9e3d.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/vabemavuputenif/going_to_worksheets.pdfIn PDF document text
    • http://relumewamamit.rf.gd/kekapasagorovolizifemimu.pdfIn PDF document text
    • http://wetoxikilosawa.epizy.com/femijogexukagiwosasebagor.pdfIn PDF document text
    • http://xatudoxi.epizy.com/video_lagu_cinta_luar_biasa_metrolagu.pdfIn PDF document text
    • https://s3.amazonaws.com/lixuzo/favamidefabofejuropi.pdfIn PDF document text
    • https://s3.amazonaws.com/vigevot/xivirobutalax.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_off0000ebc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEBC3 5528 bytes
SHA-256: 623c2c5deba6231c789dbdcc0a8467d54262a249cb3717890a9ae848414fdc1a
font_01_sfnt_off0000fe81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE81 10628 bytes
SHA-256: 7f3844f3de9e2c12683b37d5cfa4948a3bab23a9e1de7fa6d84fe53c39776148

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