Malicious PDF — malware analysis report

Static analysis result for SHA-256 14ece41fd4ad9b35…

MALICIOUS

PDF

73.4 KB Created: 2020-11-18 00:30:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 85e5ef27e7c9c3ee1413f3a0ffb55619 SHA-1: 9d8815c1a45ed4d3f53c3f68eea15c5c70ab10a8 SHA-256: 14ece41fd4ad9b356ff4b398d3a85ae8fc24e25c099c80f8d07e83f721fbddc4
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to a URL associated with 'carrom pool hack apk unlimited coins' and a heuristic for a visual download button suggests a phishing or social engineering attack. The document body, though heavily obfuscated, contains references that align with this lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://trafftec.ru/strik?utm_term=carrom+pool+hack+apk++unlimited+coins PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4366036/normal_5f9350d471a1e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416672/normal_5f9f242661915.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5fb2da202fa7e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380082/normal_5fa2f0ea6118e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373281/normal_5f9781fa38c94.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389830/normal_5f9896ae2cc75.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450630/normal_5fa14b2dc4580.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/sorogamat/xovejotojezojavumit.pdfIn PDF document text
    • https://s3.amazonaws.com/jotizifime/19130971452.pdfIn PDF document text
    • https://s3.amazonaws.com/henghuili-files/23355791667.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4e975d4b-fb67-4237-91e8-679d1a3443a6/13214908792.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dd1005c9-c3ac-4b27-8702-edf9ae6176a2/70837352117.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/companies_act_1956.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cccb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCB 5280 bytes
SHA-256: 17a68c7d8c005f4e60983bc115dc82690d337a9c23d9289cd27d8420518431fb
font_01_sfnt_off0000de89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE89 10648 bytes
SHA-256: c4062277de3c7bc77c8bf3f86a447b85be2a8b233c3f48d81f5322eeb1e0feda
font_02_sfnt_off00010327.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10327 16272 bytes
SHA-256: 4c975c5751d073bbd60a759b5637c12b3f0d2165ec89dd4f9c4a1c39a7d182e3

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