Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9da606e2cb5eab6…

MALICIOUS

PDF

79.3 KB Created: 2021-03-03 00:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 2f74414168b02e299750c580ff43ea83 SHA-1: 12795896f4a327abd3467cce97b9d1d87ae98682 SHA-256: e9da606e2cb5eab606df301545b966d77ff100a48530943f266e65a257922721
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, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a phishing site or download further malware. The document body, though heavily obfuscated, suggests a lure related to a "Ducane heat pump manual", aligning with phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wix?keyword=ducane+heat+pump+manual PDF link annotation
    • https://cdn.sqhk.co/tirinakiweda/HigJRsi/animal_ringtone_mp3_download.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476432/normal_6003493913b07.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366048/normal_5fd6a16034346.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444638/normal_6029d0bee01e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378165/normal_60136a221f1c0.pdfIn PDF document text
    • https://cdn.sqhk.co/rojarimeg/hajgjhY/vovonupodofit.pdfIn PDF document text
    • https://cdn.sqhk.co/vinasujitupe/hagj74y/zumuxijufinonazowekep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447669/normal_600b5ffbe74a3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486523/normal_601b3793a7ca8.pdfIn PDF document text
    • https://cdn.sqhk.co/nidaruzada/e0aihha/pickaxe_of_earth_and_song_best_perks.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376879/normal_601ba6ade01d9.pdfIn PDF document text
    • https://cdn.sqhk.co/naxudufejik/jh9FNie/bike_games_download_free_3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4377120/normal_601600680a08f.pdfIn PDF document text
    • https://cdn.sqhk.co/mibupufek/ghbigul/metal_slug_6_ps2_emulator.pdfIn PDF document text
    • https://cdn.sqhk.co/reriwoduriju/P3tjcjb/29239570002.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366010/normal_600773c93648c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://dibulokesimerog.rf.gd/edhesive_answers_1._7_answers.pdfIn PDF document text
    • http://fofeparulofiz.rf.gd/15026986584.pdfIn PDF document text
    • http://musizaxodolof.epizy.com/how_do_you_use_a_kenmore_dehumidifier.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_off0000fc76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC76 4900 bytes
SHA-256: 654119ff202f0618c22dac8816c10e1e71b8c7cf02fdccac3f0f953d9a72ff27
font_01_sfnt_off00010d06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D06 10228 bytes
SHA-256: fff1b5dbc173a536a0ac3a46448dd156fa398921238fb7cc7de18b36903508af

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