Malicious PDF — malware analysis report

Static analysis result for SHA-256 ebbc511b56a23bfd…

MALICIOUS

PDF

81.3 KB Created: 2021-03-14 22:00:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01571751dfec126ac9521f0f459c35f9 SHA-1: b5414ec07305f760caaca1efccc6d947f6021300 SHA-256: ebbc511b56a23bfde67592b40fdeab9aaa8084cf13ae1da26d30df9ded3f5a3d
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URL that leads to a suspicious domain, likely intended for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'Supreme size guide', indicating a social engineering attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://dafemum.ru/wix?keyword=supreme+size+guide
    • https://cdn.sqhk.co/dasewugiru/gdSifH9/pokerstars_bubble_rush_strategy.pdf
    • https://cdn.sqhk.co/wofikubid/haZgiif/play_tube_for_cats.pdf
    • http://afracheat9.xyz/how_to_use_almond_milk_in_smoothieszyv0h.pdf
    • http://artistichomesolutions.com/adobe_flash_intro_banner_maker_freeriz7i.pdf
    • https://cdn.sqhk.co/zajagatetode/ViiJhcQ/swing_trading_day_trading_scalping.pdf
    • https://cdn.sqhk.co/vedukosamo/bYhbRid/gegateke.pdf
    • https://cdn.sqhk.co/fatidizeru/7H7gjwd/the_sculptor_is_gone_sekiro.pdf
    • https://cdn.sqhk.co/vulovosovem/hb30rSU/end_it_all_meaning_in_english.pdf
    • https://cdn.sqhk.co/romilononove/hoibig3/ludafufiwulodanap.pdf
    • http://imkl-checker.com/zodobigv46v.pdf
    • http://vvvvvvvvvvvvvvvvvvvvvb.xyz/is_inferno_on_hululnned.pdf
    • https://cdn.sqhk.co/badaxiloru/2aBfcCC/art_therapy_certification_nj.pdf
    • http://afracheat6.xyz/msi_z97_pc_mate_nvme_support6ktyu.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/2cfba9f2-fe56-438d-94de-cd6e9af4362c/24005813113.pdf
    • https://s3.amazonaws.com/jezobasit/50710682366.pdf
    • https://uploads.strikinglycdn.com/files/eb07d57e-236c-46d2-a828-f2fe2bc4801e/ibn_battuta_au_mali.pdf
    • https://uploads.strikinglycdn.com/files/d3973263-1d61-42f1-9ed3-23725965ecc5/sapus.pdf
    • https://s3.amazonaws.com/wupuxus/lepiziluxemi.pdf
    • https://uploads.strikinglycdn.com/files/27bd7bca-9554-4c95-90b3-a811a40db497/2304959588.pdf
    • https://s3.amazonaws.com/lowuwofuxali/brancardier_formation_namur.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_off00010012.bin
c28ddf12bb4fbaf31dea28c580455e3de460611a853c692be08fe25c7dcb025b
pdf-font-stream PDF embedded font (sfnt) at offset 0x10012 5188 bytes
font_01_sfnt_off000111a5.bin
ca4fc4b605359f45efa1886bfd0f77e47aa9323a14ef87774549be69ad7d593c
pdf-font-stream PDF embedded font (sfnt) at offset 0x111A5 11404 bytes