Malicious PDF — malware analysis report

Static analysis result for SHA-256 72347cfb52d1975f…

MALICIOUS

PDF

134.4 KB Created: 2020-12-31 16:37:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: c83c6aa8986001eca691b16eeb828c5a SHA-1: 79dc4bc2e8741c092a158c466ebb44a2ecba1efa SHA-256: 72347cfb52d1975fc16a23f902be71c925b5e6a55bf30a8efc465b23f50ce415
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, contains text related to 'Life simulator 2019 roblox obby', suggesting a lure to attract users interested in gaming.

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://trafficel.ru/strik?utm_term=life+simulator+2019+roblox+obby PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377408/normal_5f9ebec74c4fd.pdfIn PDF document text
    • https://cdn.sqhk.co/fuzomorikat/Djeiigj/19663412577.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4456420/normal_5fa6aca41608e.pdfIn PDF document text
    • https://cdn.sqhk.co/filumabit/giJtsXg/71466326455.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/sefukirexuwekij/reading_like_a_historian_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/vesubodufisi/kilajilonefekeladam.pdfIn PDF document text
    • https://s3.amazonaws.com/pasawe/30466542145.pdfIn PDF document text
    • https://s3.amazonaws.com/wemupajese/posiwukugirewuwinewixufen.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/dc_gov_outlook_mail_login.pdfIn PDF document text
    • https://s3.amazonaws.com/benubapopikaj/melaleuca_cajuputi.pdfIn PDF document text
    • https://s3.amazonaws.com/xuxifuzituwu/filibertos_nutrition_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/39515222951.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/79996266133.pdfIn PDF document text
    • https://s3.amazonaws.com/vekodupiwarobi/gorupol.pdfIn PDF document text
    • https://s3.amazonaws.com/tobovunoberiki/beautiful_peacock_wallpapers_free.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://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off0001edc5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1EDC5 18168 bytes
SHA-256: ea83f201e10526cca916084c93de0ae9185f50c57fb9138ba05114a916341a9a
font_00_sfnt_off00017fb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17FB4 6440 bytes
SHA-256: 3d4760ca295192c89086870ebbac49c5a5945404ea6ab57fca452cf2db5f569a
font_01_sfnt_off00018f77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18F77 2856 bytes
SHA-256: 4d00d9a42b8c0a6281c6f91ecd2d6619cfd6d2fee89e9d65d4cff6ecb559f56b
font_02_sfnt_off000199a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x199A1 5644 bytes
SHA-256: 95c4065b84c40092c397d19381564dcfcb7f86d4c533850c846da1e0bc89a8a1
font_03_sfnt_off0001acbb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1ACBB 4056 bytes
SHA-256: ea2a593e92316569cba0205cafd151306564efc54151773d84180ce48240a7d0
font_04_sfnt_off0001bc88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1BC88 15516 bytes
SHA-256: deeea475bb91271ab5e6a430c0ccf1807d85e9a0fe9dc6be110d99c59425dbed

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