Malicious PDF — malware analysis report

Static analysis result for SHA-256 62167d4d27512d87…

MALICIOUS

PDF

69.4 KB Created: 2021-01-20 08:10:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 93f31a8bf17cb43b7d4d9e35285f69e4 SHA-1: 42595ba40dd391a922fa43ac637ede3bcd70f464 SHA-256: 62167d4d27512d87608b2d4bc4b324381808ed521db8edd273e02c419c5bb594
194 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wb?keyword=zombie%20horse%20halloween%20prop In PDF document text
    • https://cdn.sqhk.co/xejudawadoni/gfMgi4D/apache_gunner_mos.pdfIn PDF document text
    • https://boferisavupase.weebly.com/uploads/1/3/1/3/131384298/8c576.pdfIn PDF document text
    • https://cdn.sqhk.co/rusukumuva/1Qgggj7/buzifoxanidu.pdfIn PDF document text
    • https://cdn.sqhk.co/savimatuv/cgcgcca/72295731146.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/0xkgjgT/bixuzanilaluvagifej.pdfIn PDF document text
    • https://cdn.sqhk.co/xijogedobu/f0gjihD/56275827877.pdfIn PDF document text
    • https://site-1181071.mozfiles.com/files/1181071/barbie_ice_cream_parlor_cooking_games.pdfIn PDF document text
    • https://cdn.sqhk.co/loxinesupiva/hjhjiaT/rumawa.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/nademopor/anaconda_4_free.pdfIn PDF document text
    • http://bexadujozopu.epizy.com/noxegefa.pdfIn PDF document text
    • https://s3.amazonaws.com/fajixe/new_android_developer_language.pdfIn PDF document text
    • https://s3.amazonaws.com/gorajikunobixi/mary_j_blige_zip.pdfIn PDF document text
    • https://s3.amazonaws.com/tawovojo/mujusubibebufoxakuguva.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/bowoxisavezaxe.pdfIn PDF document text
    • http://kupikobu.epizy.com/shin_chan_video_tamil_movie.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_off0000d18f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18F 5248 bytes
SHA-256: 4960faf285dbdc7aae29abc93be93a98a60a437c9e3e8828f98d6408b68a12ff
font_01_sfnt_off0000e349.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE349 11056 bytes
SHA-256: 01de0c8c4bc73eb74517dcd1279c4908eea56ccfb32b207f100e2301272113cc