Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e7d999f5a2a8c13…

MALICIOUS

PDF

77.2 KB Created: 2021-06-02 06:36:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b2dc4845a65dca18e714e64b47cbd5ca SHA-1: 72889b21427b32387bde5d6c253eadcd0d2b1ba0 SHA-256: 8e7d999f5a2a8c13ad06302be6301d6f284f895b73b283495006ce02519b2082
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'allytemp.ru', which is likely used to deliver a phishing page or a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to a game guide, aligning with common social engineering tactics.

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://allytemp.ru/pbw?utm_term=pokemon+omega+red+hack+rom+guia
    • https://cdn-cms.f-static.net/uploads/4456666/normal_605bac093ac80.pdf
    • https://cdn-cms.f-static.net/uploads/4383567/normal_601735c60eea4.pdf
    • https://cdn-cms.f-static.net/uploads/4369323/normal_60225ff70cc1c.pdf
    • https://static.s123-cdn-static.com/uploads/4457005/normal_5ffc921b554bc.pdf
    • https://cdn-cms.f-static.net/uploads/4464523/normal_60286ae9c60c4.pdf
    • https://cdn-cms.f-static.net/uploads/4391009/normal_604d447dc5d26.pdf
    • https://cdn-cms.f-static.net/uploads/4381964/normal_604f667f72ccb.pdf
    • https://cdn-cms.f-static.net/uploads/4382953/normal_6021a0c8c1aef.pdf
    • https://cdn-cms.f-static.net/uploads/4412377/normal_601ca60e27eb2.pdf
    • https://cdn-cms.f-static.net/uploads/4528260/normal_604d2465a4807.pdf
    • https://cdn-cms.f-static.net/uploads/4480753/normal_60161db29c2c4.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://zigunef.pbworks.com/w/file/fetch/144479232/gta_5_money_generator_no_human_verification_and_no_survey.pdf
    • http://kipizasuzeda.pbworks.com/f/jack_and_the_beanstalk_book.pdf
    • http://jizakatum.pbworks.com/f/xotolosi.pdf
    • http://fokopaviwu.pbworks.com/w/file/fetch/144467319/tinkerbell_pixie_hollow_games_full_movie_in_hindi_download.pdf
    • http://fotikeralo.pbworks.com/f/lalokijobopesuwiku.pdf
    • http://sizolasipape.pbworks.com/f/bleach_brave_souls_lvl_200_guide.pdf
    • http://zegugas.pbworks.com/w/file/fetch/144411423/taboo_midnight_card_game_rules.pdf
    • http://bovozajezo.pbworks.com/f/how_wide_is_10_gauge_wire.pdf
    • http://joxupakager.pbworks.com/w/file/fetch/144490305/sufulanipobuzuv.pdf
    • http://ziludezubeju.pbworks.com/f/chi_selfie_por_evance_melekan.pdf
    • http://sizolasipape.pbworks.com/f/27006328167.pdf
    • http://ronuzexem.pbworks.com/w/file/fetch/144428010/como_dar_robux_en_roblox_a_amigos.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_off0000ece0.bin
3a66fa7a4c99ea84bed63feee84c54a9583237eb8c9f230af9640444faf6f35e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECE0 5208 bytes
font_01_sfnt_off0000fe74.bin
ad683125288e2154ce24102f8d1c4a6eb36454fb1cae7c9c7015854ed7fda5a4		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE74 12848 bytes

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