Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ea577f379a870ee…

MALICIOUS

PDF

71.9 KB Created: 2021-03-06 06:29:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fe381182592a0b8a6f39da08cb505f7c SHA-1: 2927760b419c6521a5cfeb144f4693f9689ad500 SHA-256: 5ea577f379a870eecc8553732ae64194f5974066a9dd3144ef04b462f0c93195
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://gimoguvi.ru/wix?keyword=classical+conversations+foundations+guide+4th+edition PDF link annotation
    • https://puwibovur.weebly.com/uploads/1/3/4/6/134639487/rutivituj-pumagebisejil-sipusawedet.pdfIn PDF document text
    • https://bawapumur.weebly.com/uploads/1/3/4/4/134466187/kodanipagumosiw.pdfIn PDF document text
    • http://latuha.com/jatolinapegozgo1yo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402267/normal_600d6a713fb83.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367941/normal_5fddbe9bbb970.pdfIn PDF document text
    • https://tedogiji.weebly.com/uploads/1/3/0/7/130775371/liwepulepovigomene.pdfIn PDF document text
    • https://cdn.sqhk.co/kinemefuwa/f25hhhf/79644594325.pdfIn PDF document text
    • https://cdn.sqhk.co/suzeboxiwo/idMDicg/block_craft_20th_century_fox.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472481/normal_604146a0c8b14.pdfIn PDF document text
    • https://cdn.sqhk.co/pozedezupase/jchedic/datik.pdfIn PDF document text
    • http://service-hire.com/75044289263pf5ol.pdfIn PDF document text
    • https://cdn.sqhk.co/nobutowug/hcif7dT/one_gold_app_review.pdfIn PDF document text
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/sifotuxaxewatud.pdfIn PDF document text
    • http://openchambre.xyz/vomuteehe3d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/senodiw/jajegupusujomisad.pdfIn PDF document text
    • https://s3.amazonaws.com/rubidokezive/wutamuxemina.pdfIn PDF document text
    • https://s3.amazonaws.com/pobixedele/tartil_quran_anak_kecil.pdfIn PDF document text
    • https://s3.amazonaws.com/tiluwisulepam/jarifite.pdfIn PDF document text
    • https://s3.amazonaws.com/jixeremipet/97475156578.pdfIn PDF document text
    • https://s3.amazonaws.com/nazekisigiduz/pibodunoxuli.pdfIn PDF document text
    • https://s3.amazonaws.com/degisapemifa/661509160.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/51316244578.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ce96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE96 5336 bytes
SHA-256: bad47ee23b4c5e8b486a06413e2366020e36a6fa449ed760cb70d7882baa3825
font_01_sfnt_off0000e0b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0B8 10148 bytes
SHA-256: f16fffb1dcbbb2ed4f6b59f1a5a2398aadccc5f288cd59f10684fe76d1c65963
font_02_sfnt_off0001037c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1037C 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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