Malicious PDF — malware analysis report

Static analysis result for SHA-256 e33bb5455856751d…

MALICIOUS

PDF

76.8 KB Created: 2021-03-20 02:55:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 19815bd17c8f6909ebf703c61e4e0439 SHA-1: 69bbfd9a0542024c6616b153c07b62de8a587011 SHA-256: e33bb5455856751dabe28ecb00cafe083a2a62709f78de5fba6e321074d0b6e5
96 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 an embedded URL that mimics a search result, likely intended to trick the user into downloading malware. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jumiwimov.ru/wix?keyword=kodi+17.1+apk+download+for+android+box
    • https://rexanofodifedow.weebly.com/uploads/1/3/1/3/131378899/makabin.pdf
    • https://cdn.sqhk.co/lukavago/7hciaoW/2206566464.pdf
    • https://cdn-cms.f-static.net/uploads/4411479/normal_601d6809b279c.pdf
    • http://redit.fun/how_to_pair_anker_bluetooth_keyboard_with_ipadtumxq.pdf
    • https://ranalugepileli.weebly.com/uploads/1/3/4/7/134735155/lojuperafoj.pdf
    • http://shop-kid-toys.online/should_the_word_into_be_capitalized_in_a_titlesggzx.pdf
    • https://safupoxex.weebly.com/uploads/1/3/2/6/132683070/458792.pdf
    • https://cdn.sqhk.co/jozazixefuf/ighbjhG/converting_fractions_to_percentages_and_decimals_worksheets.pdf
    • http://akb54.ru/cisco_packet_tracer_for_mac_freeqfljm.pdf
    • http://zarabatyivat.ru/xebufikefu8d0.pdf
    • http://ig-about.net/discourse_on_livy_summaryyzeb7.pdf
    • https://cdn.sqhk.co/tatudawo/xjdjegg/lixalefowufo.pdf
    • https://cdn-cms.f-static.net/uploads/4447460/normal_60137cd643d5c.pdf
    • http://copyright-securityx.com/37015412669a9i5p.pdf
    • https://cdn-cms.f-static.net/uploads/4446496/normal_6014b9e5929a7.pdf
    • https://cdn-cms.f-static.net/uploads/4475572/normal_601bc1502020c.pdf
    • https://cdn-cms.f-static.net/uploads/4386851/normal_604d8bce5c7e2.pdf
    • https://cdn.sqhk.co/vefemenivu/Fvjahfo/ginopigorisavi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/35e82086-607a-4468-b55a-a77010bffce4/33000248717.pdf
    • https://uploads.strikinglycdn.com/files/aa44b158-b17d-40ad-9541-9d94fd4f316a/is_the_sony_rx100_still_a_good_camera.pdf
    • https://uploads.strikinglycdn.com/files/d3098cf7-def1-47e7-a0c7-ff3063b5754b/how_to_clean_filter_hoover_windtunnel.pdf
    • https://uploads.strikinglycdn.com/files/3cee3f12-58c8-4006-a8e2-90d76a9d7d8e/pikakotov.pdf
    • https://uploads.strikinglycdn.com/files/e1fe1b00-d706-4cd2-910a-0ee9ccf382a1/robi_jotpot_balance_stop_code.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_off0000ed49.bin
a940aeb1b0f8db176e7160f84e9638600e58ebe5444478f5986b88021b0ae988		 pdf-font-stream PDF embedded font (sfnt) at offset 0xED49 5352 bytes
font_01_sfnt_off0000ffba.bin
c1ad8d59977f6b0fa9b775e44f8cafff7af9e1764a9cc733b27d81e85f81fc71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFFBA 11204 bytes

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