Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bc697def177cd50…

MALICIOUS

PDF

74.6 KB Created: 2021-03-14 20:21:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 3634d47db765bb67c29fbbdec5f4e9d9 SHA-1: 9227ee8d6628283584e7f77a966ee02d4549a03d SHA-256: 2bc697def177cd50c192731661330b09ad7b7a643d0ac3de86d282c2fd2bd90f
126 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains a large number of external URLs, many hosted on disposable domains, suggesting a link farm or redirection mechanism. The document body, though heavily obfuscated, appears to be a lure related to 'Fishing planet guide 2019', indicating a potential phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 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://ponafet.ru/wix?keyword=fishing+planet+guide+2019 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4482858/normal_5fd64cf1b71f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387420/normal_5fd967a491c75.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/DzieZf8/pixel_worlds_mod_apk_unlimited_gems.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4371013/normal_5fe1f8d55d402.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/ibhgXBS/skater_xl_maps_list.pdfIn PDF document text
    • http://guwugil.22web.org/21176404979.pdfIn PDF document text
    • https://cdn.sqhk.co/sulugedako/oidjiqe/forest_live_wallpaper_free_download.pdfIn PDF document text
    • https://sukivafuxek.weebly.com/uploads/1/3/0/8/130874221/5963574.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450156/normal_5fea059f9337f.pdfIn PDF document text
    • https://cdn.sqhk.co/kafekata/difhaia/sugar_rush_racing_game_apk.pdfIn PDF document text
    • http://nusukopov.22web.org/50095687633.pdfIn PDF document text
    • https://vutameko.weebly.com/uploads/1/3/4/5/134576445/rivof.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488817/normal_603fbfe9e59b4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tizovosavudufi.rf.gd/mekokinitadenowa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/be683ea3-f15f-415e-bf6b-2b783d61f8e1/barnett_vortex_lite_owners_manual.pdfIn PDF document text
    • http://resisimokopi.epizy.com/speed_queen_washing_machine_reviews_australia.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ba112549-53d4-4371-8fd1-3baeac98bd1f/06_bmw_330i_reviews.pdfIn PDF document text
    • http://mojiwuvotagal.epizy.com/estrategias_pedagogicas_definicion.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a90bae0c-9e9f-4488-abe8-f737b52e0338/how_can_i_help_my_child_academically.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0828d68d-7d9d-477e-8b33-83c90afbb825/voyager_legend_vs_5200_uc.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_off0000e7c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7C0 5560 bytes
SHA-256: 369b8a61b845ba166322aa12b0ef952248e006b559e832de0d8b163dcf020e2d
font_01_sfnt_off0000faaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAF 10228 bytes
SHA-256: e662d7a7b67df1fb08843e26078a428b454c7840bb304a1d66b856105adf2d0b

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