Malicious PDF — malware analysis report

Static analysis result for SHA-256 e269a47ce8054640…

MALICIOUS

PDF

93.7 KB Created: 2021-04-08 00:48:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1605cd9cd927032f13827084a0dc257a SHA-1: c0f23ed31c22caa5cd34c99690e7d9d47fd1b3bc SHA-256: e269a47ce80546409f1d115956cfa39083e31d5b0e29b447514d1571d1d55463
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. The document body, though heavily obfuscated, contains text related to 'Cbeebies bedtime stories actors' and the authoring application 'wkhtmltopdf', suggesting a lure. The primary IOC is an external URI pointing to a suspicious domain, likely used to deliver a secondary payload or redirect the user to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9973

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://druttle.ru/strik?utm_term=cbeebies+bedtime+stories+actors
    • https://cdn-cms.f-static.net/uploads/4455914/normal_602e9b28086e3.pdf
    • https://static.s123-cdn-static.com/uploads/4454056/normal_5ffe9fe55333b.pdf
    • http://ributufukepun.66ghz.com/2955102805.pdf
    • https://cdn-cms.f-static.net/uploads/4387817/normal_604fb490e8685.pdf
    • https://cdn-cms.f-static.net/uploads/4410447/normal_602f1e5a5bb03.pdf
    • https://cdn-cms.f-static.net/uploads/4419002/normal_601fd74e9e034.pdf
    • https://cdn-cms.f-static.net/uploads/4476146/normal_60514e0a50e7a.pdf
    • https://cdn-cms.f-static.net/uploads/4374703/normal_600b77727f3a3.pdf
    • https://cdn-cms.f-static.net/uploads/4378848/normal_60374407a453a.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/nefomojuwet/flower_with_butterfly_images_free.pdf
    • https://s3.amazonaws.com/kisagoz/50910682836.pdf
    • https://s3.amazonaws.com/vanatul/android_studio_project_structure_not_coming_properly.pdf
    • https://s3.amazonaws.com/xijilesuzuxo/husqvarna_128cd_trimmer_head_parts.pdf
    • https://s3.amazonaws.com/jeworurowam/how_to_prepare_for_math_kangaroo_test.pdf
    • https://uploads.strikinglycdn.com/files/de751daf-6f8d-4152-b186-db4ffe60b4a8/hobart_140_qt_mixer_manual.pdf
    • https://s3.amazonaws.com/ximupuv/70448289761.pdf
    • http://wukosinigi.epizy.com/al_qaeda_ideology.pdf
    • https://uploads.strikinglycdn.com/files/a6962656-dc97-4776-a384-58fe8a609816/pagijaforowoxotadof.pdf
    • https://uploads.strikinglycdn.com/files/716529d1-275d-4782-8085-6bcaa12b1554/vawajo.pdf
    • https://s3.amazonaws.com/jojitagifuva/81516005914.pdf
    • https://s3.amazonaws.com/sefepugolupalax/80081883117.pdf
    • https://uploads.strikinglycdn.com/files/7704303f-fc11-4706-a453-3564a4ec55d3/avatar_comics_the_search_omnibus.pdf
    • https://s3.amazonaws.com/limewub/guwabubojanenibagupozuvo.pdf
    • http://bakajejupuxa.epizy.com/how_to_put_jbl_bluetooth_speaker_in_pairing_mode.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000faf9.bin
1c7b6ec206c09e67cf22aea2310dd578408a20dee44bccfaeb2cbfb27d7d8380		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF9 4900 bytes
font_01_sfnt_off00010b91.bin
71ac03012814573e3bac3c5b3c9810fda06f572856fbd90caca4ac482de4e374		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10B91 4664 bytes
font_02_sfnt_off00011ce4.bin
f956ea17baec2d08159edecfb30a58b2aa2f43c327b052ccd326aa857eb82154		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11CE4 11416 bytes
font_03_sfnt_off000143a3.bin
0216150ac0e5ade23b072752459620ec704bdac01526bfbadd96d51f96873ef3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x143A3 16168 bytes
font_04_sfnt_off000158aa.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x158AA 4324 bytes

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