Malicious PDF — malware analysis report

Static analysis result for SHA-256 6ebb9e196e579cbc…

MALICIOUS

PDF

70.0 KB Created: 2021-02-15 06:12:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9eb93b729af08803aa3cb3424a956ba6 SHA-1: b647536dc8235f094533df5b66a0820885aeb181 SHA-256: 6ebb9e196e579cbca0bebc8a4e077c3753ff4e015d8144dc6c8e7ae2b82975e1
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://jacksth.ru/wix?keyword=blueant+bluetooth+s1+manual PDF link annotation
    • https://cdn.sqhk.co/pekobenew/lalhbL7/ipl_2018_chennai_super_kings_players.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzokikili/uhggcib/jump_rope_competition_videos.pdfIn PDF document text
    • https://pomitowu.weebly.com/uploads/1/3/4/3/134389192/d40281955.pdfIn PDF document text
    • https://cdn.sqhk.co/nabixisaf/dxZtTha/stick_fight_the_game_controls.pdfIn PDF document text
    • https://cdn.sqhk.co/nexetifosam/hDfyIuU/real_boxing_2_creed_android_download.pdfIn PDF document text
    • https://bokowamimufap.weebly.com/uploads/1/3/2/7/132712050/5d80ec3bf52de2b.pdfIn PDF document text
    • https://cdn.sqhk.co/tasewapimol/aSifjdL/23901405404.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500453/normal_5ff17f935e36b.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/3pwg9yj/60401875437.pdfIn PDF document text
    • https://xowitato.weebly.com/uploads/1/3/0/7/130776358/1435141.pdfIn PDF document text
    • https://cdn.sqhk.co/kososojog/IQc8Whf/top_10_lightsaber_duels_in_star_wars.pdfIn PDF document text
    • https://cdn.sqhk.co/bugolajoxodu/hfjfjed/john_gba_lite_how_to_download.pdfIn PDF document text
    • https://cdn.sqhk.co/liralimujote/ijZghhL/brawl_troopers_apkpure.pdfIn PDF document text
    • https://cdn.sqhk.co/dapumexader/phevjgK/54067980051.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d675.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD675 5068 bytes
SHA-256: 2afc4993a7e3e7ad7d75f32ac389f5e1b9c6391378e82384d44ffdb1b86acdd2
font_01_sfnt_off0000e790.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE790 10616 bytes
SHA-256: 3d4bbea0457d80464c343c5babe5d6bba972429e396ee79c892b712687180715