Malicious PDF — malware analysis report

Static analysis result for SHA-256 7876bd0321bd0138…

MALICIOUS

PDF

73.6 KB Created: 2021-02-17 18:23:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: ba4560a5df5de91374e274474491324f SHA-1: 82ee77423d44b647aebc8b858159fb043ef60dfc SHA-256: 7876bd0321bd01381682d27a0ad745ddc72fc1f3541650bc7016d4ec8880387d
96 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://baarspo.ru/wb?keyword=how%20to%20make%20workout%20program', which is likely a phishing lure. Although no scripts were explicitly extracted, the PDF structure and the presence of external URIs suggest an attempt to redirect the user to a malicious site, potentially 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://baarspo.ru/wb?keyword=how%20to%20make%20workout%20program PDF link annotation
    • https://cdn.sqhk.co/tomubozes/Qwhghhi/angry_birds_dream_blast_download_for_pc.pdfIn PDF document text
    • https://cdn.sqhk.co/jesovolavig/hbIgcgi/descargar_chuzzle_2_para_pc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421466/normal_602b292fc07d8.pdfIn PDF document text
    • https://cdn.sqhk.co/fobonelaga/3RgcbYY/home_design_decor_shopping.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/jchhLgi/lucky_lanes_bowling_alley_san_pablo_ca.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/zagubip/jobakinisixekimarekos.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/tobokinas.pdfIn PDF document text
    • https://s3.amazonaws.com/gopuze/big_ideas_math_answer_key_puzzle_time.pdfIn PDF document text
    • https://s3.amazonaws.com/gonafoziguwewe/56158070052.pdfIn PDF document text
    • http://wepirizifomonij.epizy.com/metformin_benefits_and_side_effects.pdfIn PDF document text
    • https://s3.amazonaws.com/batoragubukepo/answers_in_genesis_book_2.pdfIn PDF document text
    • https://s3.amazonaws.com/gewuwasi/naremebivopivetiva.pdfIn PDF document text
    • https://s3.amazonaws.com/sugowubuf/love_breakup_sad_song_pagalworld.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/54403232509.pdfIn PDF document text
    • https://s3.amazonaws.com/bezorito/83446202883.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e431.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE431 5044 bytes
SHA-256: f58efba326ede09a112f59d1be0a385bbd7a6a6332d553b16368a507e04601fa
font_01_sfnt_off0000f555.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF555 10516 bytes
SHA-256: 50c6852ba11542636c448310f2b7a506db716fa3fd228a29588bdd610abbe0fe

Open this report in the interactive analyzer, or submit your own file for analysis.