Malicious PDF — malware analysis report

Static analysis result for SHA-256 d65ebbcb370b95fe…

MALICIOUS

PDF

91.9 KB Created: 2021-06-05 07:13:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-24
MD5: b9a157dc3e4db2e565b44895e8cffabe SHA-1: eaad785f4734d2556db9b53030db57c0e9b69e23 SHA-256: d65ebbcb370b95fec8f1a9b3e189f87ffaa16c952a392f5b2b884c440a1c1d04
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially corrupted, suggests a lure related to making money, and an external URI points to a URL that appears to be part of a phishing or malware distribution scheme. The presence of embedded URLs further supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://ketchas.ru/pbw?utm_term=how+to+make+a+million+dollars+in+real+estate+book PDF link annotation
    • https://jobubati.weebly.com/uploads/1/3/1/4/131453688/dipereraranebusopi.pdfIn PDF document text
    • https://niladomawinur.weebly.com/uploads/1/3/4/8/134875702/vatulalopo_zolov.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450730/normal_5ff2acc00a305.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450864/normal_601700b1bb08c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402949/normal_5fe44e58447b1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487416/normal_5ff0bd120d85c.pdfIn PDF document text
    • https://xegiduburap.weebly.com/uploads/1/3/5/2/135294675/3087629.pdfIn PDF document text
    • https://kotafogora.weebly.com/uploads/1/3/4/3/134322717/xapozagilag.pdfIn PDF document text
    • https://static.s123-cdn-static-d.com/uploads/4401545/normal_60b1da76583b2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412890/normal_603d2573e9d93.pdfIn PDF document text
    • https://paripipedaninez.weebly.com/uploads/1/3/4/4/134444050/af6b7f4e68c7.pdfIn PDF document text
    • https://giwafadewixagi.weebly.com/uploads/1/3/4/3/134369241/ditaduxika.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459180/normal_5ffbdd335c188.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485435/normal_606e11fc4fe2a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367004/normal_60413990dc03a.pdfIn PDF document text
    • https://winomawapaba.weebly.com/uploads/1/3/5/3/135334931/7420292.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374362/normal_604f30fbed2f9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ddd8056-3187-407f-8991-b5265747a1d4/english_quran_translation.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/172bda58-d8bc-44f7-b37c-ceeb6d72a9d9/el_pollo_loco_nutrition_chicken_avocado_taco.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bca3c971-09e4-4ed5-a26b-eca8496e218a/how_to_download_the_aether_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/08f5e721-e824-43b1-a61a-a0f5ea8690f4/vekira.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a8be0e8b-f86b-43cb-b2ae-b0bbaf8347aa/96475346306.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_off000129f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x129F6 5228 bytes
SHA-256: 346b047adc02c49b6e135cab2552d52ae5386b31b0b1fdd12aee38042867fb04
font_01_sfnt_off00013bae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13BAE 11244 bytes
SHA-256: cd7e94f181f81771822ea24a1a99dee20419e1263540009d5df7e70af28f5b5a

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