Malicious PDF — malware analysis report

Static analysis result for SHA-256 22609fc7e167f683…

MALICIOUS

PDF

77.7 KB Created: 2021-05-23 14:35:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-23
MD5: 17ef0362f5f36df41c4f4f553215750e SHA-1: 26f3cfd206500ea3a4331dcfce9ae6bc5f19b497 SHA-256: 22609fc7e167f683820fc396921ad915cc3322b2824e575b90f570a25d0ccb08
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF file was flagged by multiple heuristics as malicious, including a critical finding for a PDF link farm. The embedded URLs and the document's structure suggest an attempt to redirect users to external sites, likely for phishing or to download further malicious content. The presence of PDF_SEO_LINK_FARM and PDF_URI heuristics strongly indicates a malicious intent to leverage SEO techniques for distributing malicious links.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

Heuristics 5

  • 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.
  • 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://fokemale.ru/strik?utm_term=how+to+calculate+using+vernier+caliper PDF link annotation
    • https://letosuve.weebly.com/uploads/1/3/0/7/130739520/dukanofewe_lotapuwiba_mazisaxepa_xefevuwodujoga.pdfIn PDF document text
    • https://zajilonuxiwez.weebly.com/uploads/1/3/4/8/134871265/18a3e6200b.pdfIn PDF document text
    • https://biwalude.weebly.com/uploads/1/3/4/6/134613088/9219393.pdfIn PDF document text
    • https://litisenos.weebly.com/uploads/1/3/1/0/131071047/4006968.pdfIn PDF document text
    • https://taxamoxegira.weebly.com/uploads/1/3/4/8/134895948/752481.pdfIn PDF document text
    • https://kenojulovananav.weebly.com/uploads/1/3/4/0/134016885/8048555.pdfIn PDF document text
    • https://daginunus.weebly.com/uploads/1/3/4/5/134597638/9936662.pdfIn PDF document text
    • https://mufanujirube.weebly.com/uploads/1/3/5/3/135348440/7819054.pdfIn PDF document text
    • https://donurufeto.weebly.com/uploads/1/3/4/8/134898164/pemovewulovut.pdfIn PDF document text
    • https://rumuzejisu.weebly.com/uploads/1/3/5/3/135349165/e35b5.pdfIn PDF document text
    • https://bizitaninajoki.weebly.com/uploads/1/3/5/3/135316521/depizunigivo.pdfIn PDF document text
    • https://tikemedatimi.weebly.com/uploads/1/3/0/7/130776462/wugud-sajaro.pdfIn PDF document text
    • https://bipuwuvi.weebly.com/uploads/1/3/0/7/130776795/duxibibapoguwumani.pdfIn PDF document text
    • https://rizegenaw.weebly.com/uploads/1/3/4/1/134108854/2605700.pdfIn PDF document text
    • https://mubuwevuli.weebly.com/uploads/1/3/4/5/134528176/5d264a41.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/joterige/29662172878.pdfIn PDF document text
    • https://s3.amazonaws.com/kozibowisenatu/metformin_dose_for_prediabetes.pdfIn PDF document text
    • https://s3.amazonaws.com/waxegatulo/coliformes_termotolerantes_em_agua.pdfIn PDF document text
    • https://s3.amazonaws.com/jasipefulaxiduj/mamogodezumaj.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/94309707078.pdfIn PDF document text
    • https://s3.amazonaws.com/vazisi/adobe_video_editor_gratis.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/online_translator_english_to_spanish.pdfIn PDF document text
    • https://s3.amazonaws.com/godoremitiwuja/zoom_h4n_pro_battery_life_phantom_power.pdfIn PDF document text
    • https://s3.amazonaws.com/buwosevax/college_board_sat_practice_test_6_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/xofalepelala/essential_oils_uses_guide.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_off0000f292.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF292 5212 bytes
SHA-256: 624eed8cf235d0c66eb9ec8fb33a889fb98bab23a4a1d4db2ba31e2b7eb6b437
font_01_sfnt_off00010477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10477 10736 bytes
SHA-256: a8f046e24bc676133266cb12bb8e3ec391bd4536be8c2b10548bd1266fad1af7

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