Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e448b9b3bde6953…

MALICIOUS

PDF

69.0 KB Created: 2021-03-01 09:49:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: 67cfc4b7efcf3fb3d399b5ed40b06b19 SHA-1: d35e9b2fcc8f81297f90c23e0241e8c8f39b65d9 SHA-256: 0e448b9b3bde6953a5cd17c20ce43a3cf6aefc03253b64a20dafa83589882f21
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 high likelihood of malicious intent. The embedded URL points to a domain that appears to be used for phishing or malware distribution. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it may contain embedded JavaScript or exploit content designed to redirect the user to the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/award?keyword=dirt+devil+hand+vacuum+filter+f101 PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4452389/normal_5fc90d6c443b6.pdfIn PDF document text
    • https://cdn.sqhk.co/wolebiduju/jjidz4b/77402103932.pdfIn PDF document text
    • https://cdn.sqhk.co/gevajoke/h8jfxCd/live_football_tv_streaming_hd_apk_ios.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450139/normal_6021287203084.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391331/normal_60170642d1bc7.pdfIn PDF document text
    • https://cdn.sqhk.co/xarozowuzosa/ggWiaii/crowd_running_prank.pdfIn PDF document text
    • https://cdn.sqhk.co/dajebala/bEgfR8T/41772981459.pdfIn PDF document text
    • https://cdn.sqhk.co/xejadukoxeta/ajgyldg/bodukafumo.pdfIn PDF document text
    • https://cdn.sqhk.co/naziwixolagu/jjjc5zs/suwelijoxul.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388841/normal_603b026547686.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490736/normal_5fe2b9205e95a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481291/normal_6038e31e74081.pdfIn PDF document text
    • https://cdn.sqhk.co/xobakidanav/NW7hbiO/universe_in_a_nutshell_game_download.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/dupula/tisudaduwowef.pdfIn PDF document text
    • https://s3.amazonaws.com/patilawasu/sygic_pro_cracked_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/xeruxaxer/diret.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_off0000cdab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDAB 5336 bytes
SHA-256: 947c552d0ebb6d6685c9ded363c08a7396c0f5385655c49b02652c9e10b7ddee
font_01_sfnt_off0000dfb8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB8 12000 bytes
SHA-256: 8ff9370b55456968efc629fdbe222fc67d7eaede72b4850ea4d39674d1ec3d23

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