Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e24403875d492e2…

MALICIOUS

PDF

79.5 KB Created: 2021-05-23 19:50:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 1dc34b5c21a8c50eceee5f3200c907b2 SHA-1: 721c6be2edbf2e7e2ec62aa0e85d7922cd57d583 SHA-256: 5e24403875d492e2ae810a9f4bcef53d8b9a75a8c3df58c4450e11fabafd2cb2
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9994

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://botokaw.ru/strik?utm_term=qualified+opinion+audit+report+example+india PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4387036/normal_60220f214659f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445739/normal_600f580629123.pdfIn PDF document text
    • https://kemebawe.weebly.com/uploads/1/3/5/3/135313751/tesewuloz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366040/normal_60268bca2d4a8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459922/normal_6034f31c2023a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491670/normal_6004522af386c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380382/normal_5fdcd2dd62b33.pdfIn PDF document text
    • https://liwufetut.weebly.com/uploads/1/3/4/5/134596667/zowevivesununusab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403556/normal_6050756abbe09.pdfIn PDF document text
    • https://vitovoraf.weebly.com/uploads/1/3/1/1/131164311/ffe14d18e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490754/normal_5fdf20d68b97d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482625/normal_60593dc36c9ff.pdfIn PDF document text
    • https://fomofasagulak.weebly.com/uploads/1/3/4/8/134860280/potifomezagukaw-rabuvuj-rafibipex.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/towutoginadivu/arabic_alphabets_vector.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9545d34f-7fb2-4e62-abab-ca230e995a76/photosynthesis_and_respiration_webquest_answer_key.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/is_the_republic_good_or_bad_in_star_wars.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/how_do_i_put_my_paper_in_mla_format_on_microsoft_word.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/23adca5b-5c53-470b-8ef1-5d58f52eae25/faxigipopabefamikik.pdfIn PDF document text
    • https://s3.amazonaws.com/fajeloninesitel/local_guide_perks_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/sepovutapakogaf/11541853823.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/node_js_axios_post_formdata.pdfIn PDF document text
    • https://s3.amazonaws.com/wiwuxot/lou_gehrig_luckiest_man_speech.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e848149-a1bb-45e3-97c4-59cbb689b3a7/blue_bossa_guitar_solo_tab.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_off0000faf8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF8 5140 bytes
SHA-256: 7bf29d0f0af033e3a45de85e4dcefc735d12f9f9aca8023b7d802727581d2765
font_01_sfnt_off00010c64.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C64 10644 bytes
SHA-256: 395fef56f57e7a00809cbb5bd23a4d70918c8148e79ca735c4ad4ad12994c359

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