Malicious PDF — malware analysis report

Static analysis result for SHA-256 83501a3506ab635c…

MALICIOUS

PDF

70.8 KB Created: 2021-02-18 13:51:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: cc149cf0aff7417ef532023472dab071 SHA-1: 0e2c273ddcaa0b841b45c9e74396ed4c5e89d746 SHA-256: 83501a3506ab635cad5afed55f507706e11a0d8c09425115154d59a5272ff986
136 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://leonvi.ru/aws?utm_term=how+much+does+printing+a+photo+cost PDF link annotation
    • http://lobomizozage.iblogger.org/edge_clamping_tool_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/jigavozef/g9jiyF5/phone_cheats_for_gta_5_ps4_money.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/jjjghhh/hunters_league_the_story_of_weapon_masters.pdfIn PDF document text
    • https://cdn.sqhk.co/xewimoziwuvo/hRhbbjf/smith_s_food_and_drug_lehi.pdfIn PDF document text
    • http://ropiwijubasa.22web.org/canon_c300_operating_manual.pdfIn PDF document text
    • https://cdn.sqhk.co/fovipobex/jYY5gfH/96029033612.pdfIn PDF document text
    • https://cdn.sqhk.co/bulixanejad/rPriax8/kevinoles.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/b6hahea/grow_credit_union_contact_number_erdington.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/zibenoroduzuw/13447809435.pdfIn PDF document text
    • https://s3.amazonaws.com/tobaziw/kajapubejurabezudi.pdfIn PDF document text
    • http://novozozoto.epizy.com/sofotegawomonetu.pdfIn PDF document text
    • https://s3.amazonaws.com/tuxexi/dvla_cherished_number_plate_retention_form.pdfIn PDF document text
    • http://dimonejoxu.rf.gd/attarintiki_daredi_movie_music_ringtones.pdfIn PDF document text
    • http://robebiwasufilu.epizy.com/zezinovid.pdfIn PDF document text
    • https://s3.amazonaws.com/fadedosi/balewakolom.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_off0000d71d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD71D 5508 bytes
SHA-256: b9f1e3e5f55794d4ed8b3358766e85f90b56871e130b6a71864483c40909acf7
font_01_sfnt_off0000e9b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9B7 10704 bytes
SHA-256: 7b018fc7f03e98fbfb3b69185e74b20b2f2e23aac2b52cb129d0dbf0dc8b6927