Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ccc4abf373b4b89…

MALICIOUS

PDF

75.8 KB Created: 2021-03-30 00:33:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 06e19dad97a837a14b36faddfd82aed5 SHA-1: da1c5407bed9988c5b1c6eee8328b58c1af52557 SHA-256: 8ccc4abf373b4b8999d35aa05ca1914904fe91b205a93109feb45649d41a26f2
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a malicious payload or conduct phishing. The document body, though heavily obfuscated, appears to be a lure related to song lyrics, 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://kuzutuzo.ru/strik?utm_term=racing+ruined+my+life+lyrics
    • https://duveniwapawas.weebly.com/uploads/1/3/4/2/134265961/2370883d6bed8.pdf
    • https://cdn.sqhk.co/fusozuwalas/gyhxhgl/five_nights_at_freddy_s_2_song_download.pdf
    • http://doruguduku.iblogger.org/fogubilemirebuv.pdf
    • https://cdn.sqhk.co/bikugipozamu/khg24hi/ropozokurejejebafazin.pdf
    • https://cdn.sqhk.co/xarupozikala/jbO3DPb/67377564373.pdf
    • https://kafutejitiripil.weebly.com/uploads/1/3/4/6/134625984/puporim-jivew-dixebamemiwuvi.pdf
    • https://cdn.sqhk.co/gadewekunel/hjhbscS/black_christmas_2006_trailer.pdf
    • https://vimugowome.weebly.com/uploads/1/3/4/3/134323071/5c263ebe1b.pdf
    • https://cdn.sqhk.co/guwuweri/jhjeHge/mario_kart_tour_event.pdf
    • https://tudegikugil.weebly.com/uploads/1/3/5/3/135317618/3934001.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/pulavokaxe/xemimediro.pdf
    • https://s3.amazonaws.com/mexavofezoxi/update_facebook_on_android_tablet.pdf
    • https://856cb5e6-6c81-45ce-9604-b57907a15cd2.filesusr.com/ugd/cc3ca9_cbd48586d2e1426d96c9582fd0bc22d7.pdf?index=true
    • http://mapitixonemo.epizy.com/how_to_write_a_formal_lab_report_for_physics.pdf
    • http://sojizodujibibo.epizy.com/saxodisojux.pdf
    • http://mafakizukizunof.epizy.com/54289055489.pdf
    • http://kawisud.rf.gd/sas_do_loop_over_character_list.pdf
    • http://bekepijamewevo.epizy.com/borges_ficciones.pdf
    • https://s3.amazonaws.com/kotodur/pakistan_army_video_song_3gp.pdf
    • https://s3.amazonaws.com/lodazojamuva/jarejurovulijarara.pdf
    • https://c0a42e0f-4cce-4e1b-84a6-2a5440198d67.filesusr.com/ugd/440b6d_29e8de9d181c4cd7a2af13e4dd21c443.pdf?index=true
    • http://pifazudiso.rf.gd/45889972608.pdf
    • https://d56a38bf-d62e-453c-9b5b-5b2fe88aea46.filesusr.com/ugd/359e64_6599ce92e18b43e7bf2777d3522bb51e.pdf?index=true
    • 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_off0000eb63.bin
2e11881075185a8c9b05cc4e9e155f607122766137502eaccdc65d6c05f9dbd7		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB63 5452 bytes
font_01_sfnt_off0000fde5.bin
d6a841b015d67f7359c2538814224340962222364ded9d6b267e9b33e3b36980		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFDE5 10496 bytes

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