Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e9ded3dc4b6bfc2…

MALICIOUS

PDF

86.5 KB Created: 2021-03-18 11:24:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b1a87ce33f8a4011054233774ae51ab9 SHA-1: 74a982cae08e9d3017c1c3731cf0e63484c135ea SHA-256: 0e9ded3dc4b6bfc2db80d38c6f487a5a171fac27764c07b1e6a070b92f178cf9
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://druttle.ru/123?utm_term=bluestacks+4+2019 PDF link annotation
    • https://cdn.sqhk.co/kumotuxijufu/hgUgdij/idle_car_tycoon_mod_apk_1._19.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453718/normal_5ff709c34a5aa.pdfIn PDF document text
    • https://cdn.sqhk.co/mekoposa/eifSmih/1922438175.pdfIn PDF document text
    • https://cdn.sqhk.co/wepiwuvume/kkibTia/vamufiparekejibasupumiz.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4387815/normal_60010f159807a.pdfIn PDF document text
    • https://cdn.sqhk.co/difanemifal/aWhdij0/62028319176.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4373281/normal_6052193716ca8.pdfIn PDF document text
    • https://cdn.sqhk.co/tivinarafuvu/hged4jc/hitman_2_movie_imdb.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368760/normal_5feb0e3c956f5.pdfIn PDF document text
    • https://cdn.sqhk.co/pixefavenar/fgghgjh/dugaponedakekilem.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404497/normal_6000703e8f2e4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4424349/normal_600bb832582f4.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/nokiva/sauti_sol_song_rewind.pdfIn PDF document text
    • https://s3.amazonaws.com/fevobelijogal/dlink_dcs-930l_default_password.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/simplex_4100_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/zodawanuror/sugujogolozejebewij.pdfIn PDF document text
    • https://s3.amazonaws.com/novifamigot/67860691176.pdfIn PDF document text
    • https://s3.amazonaws.com/bokexizometun/37781627066.pdfIn PDF document text
    • https://s3.amazonaws.com/wesezuzuvalirik/dinugasenarajaboninufoja.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/rarij.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF17 5380 bytes
SHA-256: 2c6856ee65768030bdcb4d8d59901db6dc940dcf664a0b47fdc5f8e72674e162
font_01_sfnt_off00011181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11181 10920 bytes
SHA-256: 9f4b031f9c3d59a1284cfd116a90985982cc7d60935b0e1a8f6da152ba71dc73
font_02_sfnt_off000136dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x136DD 16256 bytes
SHA-256: 19465f8bd3dee3776a8a327933385a78755bd6ec03e88b0143bbdbc8be1c2299

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