Malicious PDF — malware analysis report

Static analysis result for SHA-256 8626e1ea4fdef6b9…

MALICIOUS

PDF

113.4 KB Created: 2021-03-20 10:42:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c97e98f0d54ab5a08093817e4fab5e79 SHA-1: 54b172039bce8f2206450846f838b842341c9f86 SHA-256: 8626e1ea4fdef6b9dcfda9e926405d62505a2640fc0bd284abede4bb293fc487
196 Risk Score

Malware Insights

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

The PDF contains numerous external links, a common tactic for SEO spam and phishing. The heuristic 'SE_ADVANCE_FEE_SCAM_LURE' strongly indicates the document's content is designed to trick users into believing they are owed money or a prize, requiring them to pay fees or provide information. The embedded URL 'https://ponafet.ru/award?keyword=bsc+magazine+pdf+download+july+2020' likely serves as the entry point for this scam.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9987

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://ponafet.ru/award?keyword=bsc+magazine+pdf+download+july+2020
    • https://megogolu.weebly.com/uploads/1/3/4/3/134314378/xutuwefek-fodevuroge-vebizoz-mavetedo.pdf
    • http://trokot-roznica.xyz/allen_and_roth_laminate_flooring_reviewsx9oal.pdf
    • http://zugugalepew.mypressonline.com/what_are_primary_and_secondary_standards.pdf
    • http://galosidijixiwu.mypressonline.com/best_portable_cd_player_to_use_in_car.pdf
    • https://suxugugufagiwa.weebly.com/uploads/1/3/4/7/134740592/kigomotiripuk-rulomomi-lexopu.pdf
    • http://konsalting.info/what_are_the_elements_of_art_and_principle_of_design5ttdk.pdf
    • http://konolux.medianewsonline.com/15209809464.pdf
    • http://vkysnaya-eda.site/88814366219nu424.pdf
    • http://keepxufi.space/how_much_does_it_cost_to_reupholster_a_recliner_uk80hsv.pdf
    • https://rexiwazufeluv.weebly.com/uploads/1/3/4/3/134367678/3184840.pdf
    • http://kadaxejob.mypressonline.com/llamadas_telefnicas_roberto_bolao_completo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://uploads.strikinglycdn.com/files/9d8574e0-cc67-4841-9477-bef920000561/oregon_chainsaw_sharpening_stones.pdf
    • https://s3.amazonaws.com/pazatuv/letter_lined_paper_template.pdf
    • https://uploads.strikinglycdn.com/files/3c6b5167-40ba-44e5-ba78-17a9db9d147f/magnetism_worksheet_answers_ch_10.1.pdf
    • https://uploads.strikinglycdn.com/files/82443d9d-73c8-47eb-b996-88bedebafe0a/18050643799.pdf
    • http://wipadafefuxasi.onlinewebshop.net/wajutuguvul.pdf
    • http://bototiluwoge.atwebpages.com/best_american_cookery_books.pdf
    • https://s3.amazonaws.com/kawotexulozax/66079735426.pdf
    • https://uploads.strikinglycdn.com/files/1e86b2ca-5568-4f8c-8716-e774e50756a3/us_army_corps_of_engineers_fort_worth.pdf
    • http://saxodanokijaj.atwebpages.com/online_project_management_training_programs.pdf
    • https://uploads.strikinglycdn.com/files/d92e2844-4f9c-4016-ae93-c8f6fd07e23b/how_to_set_a_g-shock_time.pdf
    • https://s3.amazonaws.com/zupenafud/26457977170.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNU
    • http://www.gnu.org/copyleft/gpl.htmRegular

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00014601.bin
9e603924dcb15e8b6ddca405113b3dd76703a0da050b1c376a323c0002a195d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14601 6020 bytes
font_01_sfnt_off00015a9b.bin
6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15A9B 3720 bytes
font_02_sfnt_off000165fe.bin
21e2d630b7c585f88d3244aa23be959b22dadca8c421c96b0d2206bda5823b57		 pdf-font-stream PDF embedded font (sfnt) at offset 0x165FE 11824 bytes
font_03_sfnt_off00018dfc.bin
666c767b07e5b559cb23ed5673a134bfc1953d01b04a3e4a7941fb188da140d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18DFC 13712 bytes

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