Malicious PDF — malware analysis report

Static analysis result for SHA-256 392fc09537cfe09a…

MALICIOUS

PDF

69.5 KB Created: 2021-02-28 09:07:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 289e53759176fdf69f43aaef29f71e97 SHA-1: 7b67ba5cf9ccfebfa938dc1b39f053d61465b531 SHA-256: 392fc09537cfe09aff6be0b8e672713a93578f59f679ed27eb01942788fdcf3b
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://baarspo.ru/award?keyword=craftsman+chainsaw+oil+pump+replacement PDF link annotation
    • http://tafugegajotu.mygamesonline.org/ropodewawabemaxolakemiwo.pdfIn PDF document text
    • http://setovewurepenu.22web.org/diabetic_foot_ulcer_guidelines_nice.pdfIn PDF document text
    • https://vusuvorolom.weebly.com/uploads/1/3/4/5/134501440/96f90.pdfIn PDF document text
    • https://zudejuzire.weebly.com/uploads/1/3/2/6/132681250/nelafetipigemege.pdfIn PDF document text
    • https://cdn.sqhk.co/pinebiven/heggKPl/vipopixagato.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/prthgk6/halloween_decorations_sale_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/jaxabofapuw/6Xgg3n8/download_gunstar_heroes_classic_mod_apk.pdfIn PDF document text
    • https://xakolino.weebly.com/uploads/1/3/1/4/131453712/c8836a8b8e0b445.pdfIn PDF document text
    • http://pixunune.sportsontheweb.net/23736147200.pdfIn PDF document text
    • https://cdn.sqhk.co/guxifunuris/ai4ibrU/xuliditatebe.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/poresi/warirosebiruwi.pdfIn PDF document text
    • http://vamivesuger.epizy.com/introduce_new_staff_email_template.pdfIn PDF document text
    • http://kulebosux.myartsonline.com/how_to_stop_smoke_alarm_from_blinking_red.pdfIn PDF document text
    • https://s3.amazonaws.com/gimisorixosu/estructura_3._2_possessive_adjectives_worksheet_answers.pdfIn PDF document text
    • http://dujisuga.epizy.com/meterpreter_commands_for_android.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/after_effects_cs5_free_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/juduk/vazudawosegojolat.pdfIn PDF document text
    • https://s3.amazonaws.com/pubopelej/32858568403.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_off0000d1e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1E1 5252 bytes
SHA-256: 350414489351ea4e55aad8d920afeb0bd70c878f14ba7e964cd7fe36908c9565
font_01_sfnt_off0000e3ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3AB 10304 bytes
SHA-256: f756541548795a3ae0ebcb532692f712a4cd2391124f27a4063dd837888e6539