Malicious PDF — malware analysis report

Static analysis result for SHA-256 6309a12ce434e7a0…

MALICIOUS

PDF

73.1 KB Created: 2021-03-23 23:15:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c502989ec772b5a8264cd4db4fc87b2a SHA-1: 4e7db85771241dcc40ae35baba9d5af1b614fab8 SHA-256: 6309a12ce434e7a0fdef74cc375680aef50100bf11046ccbbf26b4b22a949e8b
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains a lure related to 'How to view bookmarks on pandora for android' and embeds a URL pointing to a suspicious domain. ClamAV and ML classifiers flagged this PDF as malicious, specifically as a phishing trojan. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site for further exploitation.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://dugedepap.ru/strik?utm_term=how+to+view+bookmarks+on+pandora+for+android
    • http://itchia.space/acordes_de_jarana_segunda1fsx1.pdf
    • https://cdn.sqhk.co/mumaxeje/cKUgCgg/chest_simulator_for_crocodile.pdf
    • http://salearea.pro/post_office_guide_part_1_question_answerjezim.pdf
    • https://cdn.sqhk.co/jifigetuxu/dcBiOY8/jokawesedifimetupesefa.pdf
    • http://characduwe.space/230017419540gvw.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/8717e0af-d85d-40cd-8340-5d28727c2f92/what_is_the_role_of_a_work_health_and_safety_committee.pdf
    • https://uploads.strikinglycdn.com/files/00598a16-fa71-407e-9376-9ab57b80afad/characteristics_of_a_good_husbandman.pdf
    • https://uploads.strikinglycdn.com/files/1b6e6393-a79c-49cc-a841-878a18873bf7/pencil_drawing_animal_pictures.pdf
    • http://mudefikireneb.rf.gd/waduzebep.pdf
    • http://wumipuxupixak.epizy.com/adobe_photoshop_cc_apk_for_android.pdf
    • http://rikaxusajojoba.epizy.com/memafurujune.pdf
    • https://uploads.strikinglycdn.com/files/c57fcf40-93f1-44eb-8ac1-2d978c546290/kexibufezawegamazafajirel.pdf
    • https://uploads.strikinglycdn.com/files/4b6d3334-8bc8-40e7-b46a-ea3c561b56c6/jebezuluvixezijotemob.pdf
    • https://uploads.strikinglycdn.com/files/82a255d1-3810-4975-8b92-86ea69c54f62/how_to_draw_a_cartoon_dragon_head_easy.pdf
    • http://vixuzuvubus.rf.gd/2018_ford_mustang_ecoboost_fastback_review.pdf
    • https://uploads.strikinglycdn.com/files/bc163bed-b0f3-4bc9-8999-b2c8c0300e05/organ_system_of_human_body_and_their_functions_ppt.pdf
    • https://s3.amazonaws.com/pibabopuduj/does_green_tea_flatten_your_stomach.pdf
    • https://s3.amazonaws.com/midizaxopazeji/vurijaxolinisoxaridinama.pdf
    • https://uploads.strikinglycdn.com/files/8e1b013c-2cb1-4837-978d-489c72fa3c18/langdon_acme_miter_box_manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dfa6.bin
05dee96ade095851e200cb361801d3b7833461a573324914a6ed95c1dc396a15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDFA6 5472 bytes
font_01_sfnt_off0000f238.bin
1b53f6d19d3a55a83620f89255c2e93a17f0ab7ac77bd91022ae1ed5d0838a39		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF238 11068 bytes

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