Malicious PDF — malware analysis report

Static analysis result for SHA-256 dac801053de4f8ed…

MALICIOUS

PDF

75.9 KB Created: 2021-03-23 07:47:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f8dbe6943ac19b27918e7125978e62f2 SHA-1: 3ca6eed20c16d64124d953c0866aa1c96b71c6f4 SHA-256: dac801053de4f8ed2d38c67d96ce0a5103ed87876f7d3770866e01b1bbd53af7
96 Risk Score

Malware Insights

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

The PDF file contains multiple embedded URLs, one of which is directly referenced in the document's metadata and appears to be a lure for administrative process definitions. The ML classifier and ClamAV detection strongly indicate malicious intent, likely phishing or malware distribution. No scripts were extracted, but the presence of numerous external URLs suggests a phishing or redirection attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=proceso+administrativo+definicion+pdf
    • http://pikegupima.medianewsonline.com/best_scope_for_a_marlin_model_60.pdf
    • http://fitdieta.com/how_to_clean_the_bissell_little_green_machinefq4c7.pdf
    • http://venolilixe.mygamesonline.org/46935530750.pdf
    • https://cdn.sqhk.co/sinemajud/Yjb4Ttc/battlenet_launcher_eu.pdf
    • http://whitetwo.space/674805013737si2t.pdf
    • https://cdn-cms.f-static.net/uploads/4402953/normal_601dcc597ff1e.pdf
    • http://buyfastedcircle.xyz/96854779726u97fq.pdf
    • https://cdn-cms.f-static.net/uploads/4403120/normal_6023e74b39e68.pdf
    • https://cdn-cms.f-static.net/uploads/4416666/normal_601c62f60828b.pdf
    • https://cdn.sqhk.co/rumoligodo/iag6ujd/warren_buffett_quotes_patience.pdf
    • https://cdn.sqhk.co/jivaduzar/aigIklK/mini_motor_racing_evo_crack.pdf
    • https://cdn.sqhk.co/rilowikapaz/iejcjd6/game_online_cat_simulator.pdf
    • https://cdn.sqhk.co/xeviremal/jVHeZ23/tower_building_team_challenge.pdf
    • https://cdn.sqhk.co/jasowipe/saNibpe/the_lost_vikings_android_apk.pdf
    • https://cdn.sqhk.co/pitekofotada/IFjdcja/jididoga.pdf
    • http://curvepreloved.com/lyman_50th_edition_reloading_manual_downloadxr6px.pdf
    • https://cdn.sqhk.co/zesonixiv/ciajcgx/5_pounds_to_dollars_in_1900.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/4312a52b-b594-43c4-9811-c783b090c1fe/92818663875.pdf
    • https://uploads.strikinglycdn.com/files/bfb78559-1fa6-43f9-a6f4-c1ec9e5f00a0/que_contiene_un_manual_de_organizacion_de_una_empresa.pdf
    • https://uploads.strikinglycdn.com/files/af3ab678-1943-4289-be1d-d2c546aeef9e/how_to_be_a_better_walmart_cashier.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_off0000e8e9.bin
4eac250496f4197d9c42f5ff4123e787963ad6e80065abdac1a871f610c15d43
pdf-font-stream PDF embedded font (sfnt) at offset 0xE8E9 5328 bytes
font_01_sfnt_off0000fb00.bin
63f0e77b0958e15e0e5b7891b6779f17c5af37da003040c91fc72a08d76da213
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB00 11832 bytes