Malicious PDF — malware analysis report

Static analysis result for SHA-256 7afa031b6fd40b10…

MALICIOUS

PDF

86.2 KB Created: 2021-03-28 09:49:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: fa03f2bed4f0f3d78bbeee218763575b SHA-1: 89fd3d63b20ed5e2f69045967cfb75a3107a972a SHA-256: 7afa031b6fd40b1022662f6e512572dc493efee0af15d7772388c290456e3ca3
186 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains a significant number of external links, with heuristics identifying it as a link farm hosted on disposable domains, suggesting a tactic to distribute malicious content or manipulate search engine results. While no scripts were explicitly extracted, the PDF structure and the presence of external links are consistent with phishing or malware distribution campaigns.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

Heuristics 6

  • 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://lozipotod.ru/award?keyword=swot+analysis+of+nestle+pakistan+pdf PDF link annotation
    • https://cdn.sqhk.co/wibononuve/il3gfic/rebel_inc_escalation_skidrow.pdfIn PDF document text
    • https://fofodivadi.weebly.com/uploads/1/3/4/8/134895081/bimevorigara_motig.pdfIn PDF document text
    • https://fozuxuvaporoj.weebly.com/uploads/1/3/1/8/131856883/josegoza.pdfIn PDF document text
    • https://cdn.sqhk.co/sulugedako/hjggr69/my_smart_hands_abc_song.pdfIn PDF document text
    • http://claire-irk.ru/how_do_gods_get_their_powers42hw8.pdfIn PDF document text
    • https://kuwodugedo.weebly.com/uploads/1/3/0/7/130739904/2960333.pdfIn PDF document text
    • http://strapslap.online/mufixikatujuvuehlxi.pdfIn PDF document text
    • http://nebolizixake.iblogger.org/can_i_pair_my_turtle_beach_stealth_600_to_phone.pdfIn PDF document text
    • http://solent.bar/can_you_print_with_only_black_ink_cartridge_hpcmril.pdfIn PDF document text
    • https://madoguwulivusi.weebly.com/uploads/1/3/0/7/130775056/4324843.pdfIn PDF document text
    • http://cg-designer.xyz/12924477829edvpt.pdfIn PDF document text
    • https://cdn.sqhk.co/guwuweri/XBZjjhc/facebook_search_tool.pdfIn PDF document text
    • http://help-mediasupport.com/xunigasugogojata6fvfr.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/df0d52eb-66d0-4cba-b31c-91a1efdbd3bc/nositofigi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7452381-afdb-45c6-bc97-0627d41ace02/22711192480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5d08827-a5db-467b-8121-f83d80cb1f1a/motorola_xts_3000_programming_software.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/40679b3b-d66b-4766-883e-d2d2bfb6ecb7/wenatusikatenetogenofukov.pdfIn PDF document text
    • http://pagupim.epizy.com/bachna_ae_haseeno_full_songs_pagalworld.pdfIn PDF document text
    • http://todewil.epizy.com/how_much_does_a_usps_supervisor_make.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/72841a8d-0eae-48f4-a2d0-9835a83e7e76/mekekuzabajebetivotezu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/597ebe8c-907c-428a-ab46-469f73026d09/6381553109.pdfIn PDF document text
    • http://javajese.epizy.com/motorola_xpr_7550_holster.pdfIn PDF document text
    • http://duzixaludu.rf.gd/tudid.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ef32dc47-419e-4a69-bdb7-66b563339e87/dish_network_remote_program_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/31cafbf8-cb92-4884-bd00-ce4a65290a83/63644754475.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/28b32d2f-3c79-4042-a7af-5488c3dade03/four_pillars_of_transformational_leadership_scholarly_articles.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_off0001145e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1145E 5300 bytes
SHA-256: 3a5770c2ea6f56c26abf902103c00f4c83770e780917c5003888cfa8ee1726b3
font_01_sfnt_off0001269a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1269A 10728 bytes
SHA-256: 579d9a053f31d4b7c20474993ebe2a7549b31c29e9f6a99c4b0421c82a75365c

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