Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb044f1facbf3a5…

MALICIOUS

PDF

76.1 KB Created: 2021-02-11 15:13:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 024dd965411d9099c7bba686be5036d4 SHA-1: d1ee41d6702204ed37cedfe079cd3240389eea8e SHA-256: deb044f1facbf3a5c4309a9ff97b2614656554d2d088448d7e71a0bd4597b77d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://bologen.ru/123?utm_term=honeywell+security+keypad+6160+manual PDF link annotation
    • https://cdn.sqhk.co/gumakulex/dDYlgfm/83841569355.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495536/normal_6016723a1f129.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454299/normal_5fd78935bc999.pdfIn PDF document text
    • http://mnclassis.org/14118799224at7x4.pdfIn PDF document text
    • https://zalefukonu.weebly.com/uploads/1/3/4/3/134346034/murutexizaj-finileloreg-lokel-duzosesuzegupug.pdfIn PDF document text
    • https://gibejuta.weebly.com/uploads/1/3/0/7/130776113/nejekifonurane_fupewesije_josisukusubuj.pdfIn PDF document text
    • https://jafelabuz.weebly.com/uploads/1/3/1/3/131398525/1f17c8.pdfIn PDF document text
    • https://cdn.sqhk.co/nedupugifuka/Smgdqxh/how_to_fill_cube_vape_pen.pdfIn PDF document text
    • http://fredo.bike/biginarujofefolonz69e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4466140/normal_5ffeb505e6cd0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383137/normal_5fe98441c8df2.pdfIn PDF document text
    • http://tosety.xyz/96684440900y5sg5.pdfIn PDF document text
    • http://lalat.space/john_wick_mp4_free_downloadeaxn7.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/zepifudoxapo/canoscan_lide_210_setup_cd_rom.pdfIn PDF document text
    • https://s3.amazonaws.com/lakujusitejojet/nice_asthma_guidelines_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_off0000eabd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEABD 5788 bytes
SHA-256: 337ad5109a4424a237ee31cb94fb6dec257e11324d534b8f62173d937cdfca79
font_01_sfnt_off0000fe78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE78 10844 bytes
SHA-256: 0a82b74a09aa47d1319e03bfb3c4754e09a4c399040d16ffb7cd3ba437f731c2