Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3bf2f1755ad2e7c…

MALICIOUS

PDF

77.4 KB Created: 2021-03-19 16:28:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86170de912060f2000a8d91ecddf8455 SHA-1: 27601ba6151ea773d737f1a325e7f24dd0e9ab14 SHA-256: c3bf2f1755ad2e7ce080296ded454f13e047c5540afdbab6e8f249bd587fc050
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 phishing or trojan payload. It contains an embedded URL that directs users to a suspicious domain, likely to host further malicious content or phishing pages. The document body, though heavily obfuscated, appears to be a lure related to manga content, suggesting a targeted phishing attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://resalured.ru/strik?utm_term=no+game+no+life+manga+volume+4
    • http://wifunagidoli.mypressonline.com/kinepafasojeribilipowof.pdf
    • https://cdn-cms.f-static.net/uploads/4495841/normal_602e1911886f4.pdf
    • https://jamekefexufi.weebly.com/uploads/1/3/4/8/134866820/filozapeguwew.pdf
    • http://riwozizedilar.mygamesonline.org/sujinuli.pdf
    • https://cdn-cms.f-static.net/uploads/4448718/normal_60209e0f923b7.pdf
    • http://zalewef.iblogger.org/1480168649.pdf
    • https://petuxomurekag.weebly.com/uploads/1/3/0/8/130874153/3418405.pdf
    • https://lisebilapuwuw.weebly.com/uploads/1/3/4/0/134096741/gubosarebi.pdf
    • https://static.s123-cdn-static.com/uploads/4491398/normal_5ff2d5795559d.pdf
    • https://cdn-cms.f-static.net/uploads/4376099/normal_602088669c53c.pdf
    • https://subilitukufune.weebly.com/uploads/1/3/4/6/134629352/gafozutozejoten_jamiz_mogakibolen.pdf
    • https://static.s123-cdn-static.com/uploads/4496828/normal_6008e9435e171.pdf
    • https://cdn-cms.f-static.net/uploads/4471703/normal_6023e278d0167.pdf
    • http://lijonotogi.scienceontheweb.net/jaxesufasuwesefawiz.pdf
    • http://wunadimizurened.medianewsonline.com/honda_gcv160_pressure_washer_owners_manual.pdf
    • http://wexixexebasober.22web.org/cctv_camera_installation_guide_in_tamil.pdf
    • https://mogopefisumiba.weebly.com/uploads/1/3/5/2/135295831/zemege.pdf
    • https://static.s123-cdn-static.com/uploads/4446377/normal_5fce4340ec7b7.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/fovezewi/47541720377.pdf
    • http://leveroratex.rf.gd/suredifini.pdf
    • http://popofisofol.myartsonline.com/potajaju.pdf
    • https://s3.amazonaws.com/rufonali/how_to_relieve_constipation_and_bloating.pdf
    • https://s3.amazonaws.com/kewuxejikiwe/befewamibasejido.pdf
    • https://s3.amazonaws.com/fadadedezeker/2270224181.pdf
    • http://gipomafusabakix.rf.gd/free_blouse_sewing_patterns.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_off0000f366.bin
5a7ba132222db71af01bea39afba88cf2ad6b6b4809822d3197a357f9429bbf9		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF366 4928 bytes
font_01_sfnt_off0001043a.bin
6e8fa5651dbe8dadc6535d740127ab2b9c76ba213c1712d1de5dbd6b7f82d308		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1043A 10532 bytes

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