Malicious PDF — malware analysis report

Static analysis result for SHA-256 5fde4cf2ec1aafc0…

MALICIOUS

PDF

73.2 KB Created: 2021-03-03 05:53:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: cb4da19b3636b877bee6f51745e36e9e SHA-1: f61a6179e4d3b012ba4cd7ed8eb896938f37c04e SHA-256: 5fde4cf2ec1aafc0ffee0f7e779131064bdb77fabd4b990354249e99feb7d59d
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://xezojetit.ru/award?keyword=what+is+personality+inventory+assessment PDF link annotation
    • http://apsdd54gfv.xyz/18506612815e8r4c.pdfIn PDF document text
    • http://reabook.online/vumajawofudepiwiwikvhvg.pdfIn PDF document text
    • http://springwin.space/tobelemebavolo14keb.pdfIn PDF document text
    • http://tajuliwelofiti.medianewsonline.com/30013170762.pdfIn PDF document text
    • https://cdn.sqhk.co/tazifawixax/H21abjh/parallel_universe_michio_kaku.pdfIn PDF document text
    • http://itash.space/tabawinaln2c3.pdfIn PDF document text
    • http://forovasax.medianewsonline.com/risadajevuzibulenip.pdfIn PDF document text
    • https://dorenezawux.weebly.com/uploads/1/3/5/3/135383086/8e1ae.pdfIn PDF document text
    • https://cdn.sqhk.co/lenufetimop/gARhiib/18915430466.pdfIn PDF document text
    • https://duxataravur.weebly.com/uploads/1/3/4/0/134017775/dojit.pdfIn PDF document text
    • https://cdn.sqhk.co/rikopekela/a8jhK2k/vanisazowanufolepez.pdfIn PDF document text
    • https://sotemukolewidiv.weebly.com/uploads/1/3/4/6/134660154/2621034.pdfIn PDF document text
    • https://cdn.sqhk.co/balatexoriv/POgcihR/garfield_food_truck_apk.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/vedexajawo/beelzebub_episode_1-_60_sub_indo.pdfIn PDF document text
    • https://s3.amazonaws.com/vajefam/kubofitigimeweruzadutuw.pdfIn PDF document text
    • https://s3.amazonaws.com/sesijesule/60956073290.pdfIn PDF document text
    • http://nabulegewuwal.myartsonline.com/tebonilavomudorurololed.pdfIn PDF document text
    • http://medexode.atwebpages.com/whats_the_best_drink_to_mix_with_crown_royal.pdfIn PDF document text
    • http://zatuvejamubolo.atwebpages.com/philosophy_of_science.pdfIn PDF document text
    • https://s3.amazonaws.com/zumezeviwakiz/8383337902.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_off0000e24a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE24A 5232 bytes
SHA-256: 6c14ff6581d12324fe927b58d85dd632f1d00745ad8e54092530c00c28335deb
font_01_sfnt_off0000f401.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF401 10396 bytes
SHA-256: c46021e63ddf39bacf4b63e3100c71fb246620867d53d3a6cc61e5ed668b39d5