Malicious PDF — malware analysis report

Static analysis result for SHA-256 aed8375df8a03b5d…

MALICIOUS

PDF

73.2 KB Created: 2021-02-18 03:46:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 962f5037f0a3abc965cf7ac2468f4ffa SHA-1: 0956153a3801124876f6b7bbcc16b64b3879c2c1 SHA-256: aed8375df8a03b5d5f7bf4b30cfe86563b0f5c1e1220c5751ddd814972c874d7
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://jottigo.ru/wix?keyword=xtreme+xfit+app PDF link annotation
    • https://bazifimu.weebly.com/uploads/1/3/4/6/134661545/waliwavona-nofubotavono-soxifujugine-mazozewug.pdfIn PDF document text
    • http://kurewegunopef.66ghz.com/bootstrap_4_contact_form_snippet.pdfIn PDF document text
    • https://cdn.sqhk.co/sunomedude/hdidFhi/89093655027.pdfIn PDF document text
    • https://cdn.sqhk.co/woselukafo/6iaLTif/jepesitoset.pdfIn PDF document text
    • https://cdn.sqhk.co/kobewudojuvo/Xhg0gfv/cyber_knights_rpg_guide.pdfIn PDF document text
    • https://cdn.sqhk.co/benibavagoge/djdBwpG/34230879567.pdfIn PDF document text
    • https://cdn.sqhk.co/lakivasulis/bhV8Pik/basketball_scoreboard_app_store.pdfIn PDF document text
    • https://cdn.sqhk.co/tavanaru/hfqpgjt/skateboard_party_3_pc.pdfIn PDF document text
    • https://vinofuloro.weebly.com/uploads/1/3/4/8/134850824/167411b378306.pdfIn PDF document text
    • https://cdn.sqhk.co/sebidurubuze/CibrP5f/out_there_chronicles_ep_1_apk.pdfIn PDF document text
    • https://mapobosani.weebly.com/uploads/1/3/4/3/134385232/8033583.pdfIn PDF document text
    • https://cdn.sqhk.co/bevoletef/dHnhbih/kamoxekawisilagoxonemo.pdfIn PDF document text
    • http://pabixigenived.22web.org/verbe_aller_au_present_exercices.pdfIn PDF document text
    • https://cdn.sqhk.co/gotakavapu/jjjbOLp/dubuzituboduzaxoje.pdfIn PDF document text
    • https://lasuzolus.weebly.com/uploads/1/3/5/3/135315371/futisomumawamil.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/mubemutolewe/miretel.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/xuzategokiti.pdfIn PDF document text
    • http://fugodijuw.rf.gd/83793189440.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/clown_face_pumpkin_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kiremefegonar/kuzalamikozij.pdfIn PDF document text
    • http://pulilidason.epizy.com/79873298863.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEE5 4884 bytes
SHA-256: 99f843845e487857f0d6c1a478f7ec52a9fef1967dd0c2e19c5a812d769c7906
font_01_sfnt_off0000df6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF6C 10148 bytes
SHA-256: 608d92f6c4c52a212af99b8007b638e7fa997a23a1b0edad3dcc73dee82dedb4
font_02_sfnt_off0001025e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1025E 16168 bytes
SHA-256: 0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3

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