Malicious PDF — malware analysis report

Static analysis result for SHA-256 e49cf1645c324332…

MALICIOUS

PDF

70.9 KB Created: 2021-02-12 01:08:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 7b4f3f9fbe7e91a56a048137de73796b SHA-1: 44de8398b12e2a269d9d9047b352953b0374a9ed SHA-256: e49cf1645c3243323bcd14e48ddedf78bceca92dfbf62cfaeff1a1b0ea9534a8
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 0.9997

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=toyota+echo+manual+transmission+oil+capacity PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370785/normal_6001cea71c7c1.pdfIn PDF document text
    • http://lemoxovuv.22web.org/adobe_cc_suite_mac.pdfIn PDF document text
    • http://xuzoxozi.22web.org/coolors_apk_crack.pdfIn PDF document text
    • https://cdn.sqhk.co/durotula/eHgihih/44287084129.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4469358/normal_5fe2b5d735f0f.pdfIn PDF document text
    • https://cdn.sqhk.co/zifiguwosu/ugc7egj/39777452531.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413375/normal_5fe3ea14652af.pdfIn PDF document text
    • https://cdn.sqhk.co/zufuxirap/aXThbhj/panda_pop_game_free_download_for_windows_10.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/fewunadupop/reformed_baptist_seminary_online.pdfIn PDF document text
    • https://s3.amazonaws.com/teximikamukubo/43611647709.pdfIn PDF document text
    • https://s3.amazonaws.com/kibavutibeved/bedingte_formatierung_excel_2016_englisch.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_off0000cf46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF46 5224 bytes
SHA-256: 7f0a4e8ab2d51c2ee00bb5d7983172bdfb575b5418ba8605d74116bcb2b583bb
font_01_sfnt_off0000e0e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE0E7 14072 bytes
SHA-256: 36a58232cfb7df7a58cf69970a6fa6a1f06ca13cd47bfb72c42403578bc2f78a

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