Malicious PDF — malware analysis report

Static analysis result for SHA-256 0de0314ec54e0b8b…

MALICIOUS

PDF

77.1 KB Created: 2021-04-06 14:57:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02442ad993c450b17ef4949332ce7d0f SHA-1: bee97f663e5e0ddaa1898faf2c7c4e865ad00d66 SHA-256: 0de0314ec54e0b8b3abda456de115212103e1e1924eb11cd1d599f33bca77987
96 Risk Score

Malware Insights

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

The PDF file was identified as malicious by a machine learning classifier and ClamAV, indicating a phishing attempt. It contains an embedded URI pointing to a suspicious domain, likely intended to redirect the user to a malicious site. The document body, though heavily obfuscated, appears to be a lure related to towing services.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wix?keyword=flat+rate+towing+service+near+me
    • https://vidokabotofasi.weebly.com/uploads/1/3/4/8/134868814/7fa824a9e425a7.pdf
    • https://static.s123-cdn-static.com/uploads/4454670/normal_5ff597dc4420f.pdf
    • http://digitalmedialit.com/9507798784538rte.pdf
    • https://cdn-cms.f-static.net/uploads/4478947/normal_606717eb1e7d0.pdf
    • https://lolivifi.weebly.com/uploads/1/3/0/7/130739590/fegipefisonu_judijisoketeni_digodakoxumu.pdf
    • https://renunuvejo.weebly.com/uploads/1/3/4/7/134710344/0530195d3.pdf
    • https://static.s123-cdn-static.com/uploads/4419194/normal_5ffb0599b5720.pdf
    • https://cdn-cms.f-static.net/uploads/4392195/normal_605d892130fca.pdf
    • https://sudodufutela.weebly.com/uploads/1/3/5/9/135960501/4f8f7.pdf
    • https://matigolexa.weebly.com/uploads/1/3/2/6/132682665/zibovigago-vepal-batugozimedifak-risiniturarane.pdf
    • https://cdn-cms.f-static.net/uploads/4389095/normal_603d7c7a2c7ea.pdf
    • http://leoidet.xyz/rattlesnake_point_climbing_guidey7t1q.pdf
    • http://sputnews.com/hare_rama_hare_krishna_movie_songs_free_download81rcq.pdf
    • http://indital.space/what_is_a_highly_sensitive_person_calledhra7c.pdf
    • https://cdn-cms.f-static.net/uploads/4380072/normal_5fd22bcd80436.pdf
    • https://cdn-cms.f-static.net/uploads/4373281/normal_6011e35f505c2.pdf
    • https://cdn-cms.f-static.net/uploads/4371014/normal_604d8ed06ace4.pdf
    • http://harmony-market.ru/37146819180ifp9z.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://9e2bb560-353e-4f5d-a08b-1363560edab4.filesusr.com/ugd/6c032c_75b355ac81e84fac980147d1b32c9d53.pdf?index=true
    • https://uploads.strikinglycdn.com/files/5a0b8c52-c5fe-4e4c-915e-54222b05585a/torcon_for_tennessee_today.pdf
    • https://0feddc0e-03bc-46a3-a741-45303deff239.filesusr.com/ugd/6ea6a2_40b9defb26a549979f90d687833ec7dd.pdf?index=true
    • https://uploads.strikinglycdn.com/files/57baf12d-f478-43dc-acfd-dbdf4c36b3ff/are_mercedes_c_class_expensive_to_fix.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ef68.bin
ccef86edee6f7bea0eca01b1757196838588585dc802e004796df60da4dbebd6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF68 5224 bytes
font_01_sfnt_off0001013b.bin
347a9fab94112669e0e34c12b6255a95d1dbd586a47d5b54ef7815a8a78bf5e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1013B 11140 bytes

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