Malicious PDF — malware analysis report

Static analysis result for SHA-256 697d8b85cd26ee2f…

MALICIOUS

PDF

93.5 KB Created: 2021-02-11 05:25:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 63c7971e6d69ea2fa1eb8f222dbcb615 SHA-1: a6f786ffb6637deff2191de548a443773ea730f8 SHA-256: 697d8b85cd26ee2f97824152176d2068fb05be99dc93efb16386f6cc3362dc7a
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://jacksth.ru/wb?keyword=malayalam%20christian%20songs%20free%20%20for%20mobile PDF link annotation
    • https://cdn.sqhk.co/vobilurerire/hhdhjCy/foduwodo.pdfIn PDF document text
    • https://cdn.sqhk.co/linidivez/MsichhB/off_road_rally_racing_crashes.pdfIn PDF document text
    • https://cdn.sqhk.co/mojekuvugise/b4Ovief/mopigupagidazez.pdfIn PDF document text
    • https://cdn.sqhk.co/rorajakura/Ljahcjg/sleep_cycle_sleep_analysis_smart_alarm_clock.pdfIn PDF document text
    • https://cdn.sqhk.co/dubikureta/iPynpaZ/37633980221.pdfIn PDF document text
    • https://cdn.sqhk.co/genopeno/dK5vyhj/newej.pdfIn PDF document text
    • https://cdn.sqhk.co/keserina/ibyCOjd/minecraft_build_battle_server_address_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/tememukafosu/hgignNT/87529335352.pdfIn PDF document text
    • https://cdn.sqhk.co/lajoroteb/jehigid/pisubisuza.pdfIn PDF document text
    • http://narelarijejale.iblogger.org/96112049056.pdfIn PDF document text
    • https://cdn.sqhk.co/bomoxale/ejibrhj/this_war_of_mine_wikipedia.pdfIn PDF document text
    • https://cdn.sqhk.co/xevowuto/2hhhine/walking_dead_cast_season_5_episode_13.pdfIn PDF document text
    • https://cdn.sqhk.co/xezufulozuwo/dFgfosr/my_virtual_tooth_virtual_pet_free.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/kavugusepe/mejurinijuwubagemas.pdfIn PDF document text
    • https://s3.amazonaws.com/ropuba/chopsticks_movie_480p.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_off00012ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12EE8 5540 bytes
SHA-256: a33cd8565a8fd3828a49493503c5bd68c183bdfc55a50040a83b6ff03c33e207
font_01_sfnt_off000141aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x141AA 11912 bytes
SHA-256: 874fed0bb361290289a961fce0078d57df9e1f3ace0dc23ac57ab7fc291b2bea