Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7095e8759d1fc5f…

MALICIOUS

PDF

114.4 KB Created: 2021-06-10 06:57:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 2c63dc5e69b0c11e28bc69233b764a57 SHA-1: 44c11d6aab1e5a2212de2ecdffade299c552234f SHA-256: e7095e8759d1fc5f277654aa348b1dbf7f494d0396c3d93d5e6cff1e87674808
164 Risk Score

Malware Insights

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

This PDF document is classified as malicious, exhibiting characteristics of a phishing lure. It contains a link farm pointing to various compromised WordPress sites, suggesting an attempt to distribute malware or redirect users to malicious content. The presence of a 'download' button heuristic further supports the phishing pretext.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

Heuristics 7

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://drafthe.ru/uplcv?utm_term=dashing+cm+bharat+hd+movie+download PDF link annotation
    • http://all-pass.com/folder/editor/file/52867127527.pdfIn PDF document text
    • https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/44bc436163f1e33c9e0e44c7286ec06c/futemozapigisugowi.pdfIn PDF document text
    • https://bistro-8.com/wp-content/plugins/super-forms/uploads/php/files/a664adbf5329a56dc0f6db84448a7cce/66421827665.pdfIn PDF document text
    • https://mosoptagro.ru/wp-content/plugins/super-forms/uploads/php/files/2d41bdac5277e568a8c8fd3cb097ae8b/migeruwiwixesofowit.pdfIn PDF document text
    • https://trsbarriersdirect.com/wp-content/plugins/super-forms/uploads/php/files/oh3j1ccl1g3nvcqbiijoslcnm1/pesinejuwezuximiw.pdfIn PDF document text
    • https://jxloanchien.com/style/postimage/file/33176320286.pdfIn PDF document text
    • https://dazzlin.co.uk/wp-content/plugins/super-forms/uploads/php/files/97a16e25c583607ce06130289e877bca/86647432085.pdfIn PDF document text
    • https://allcreaturesinc.com/files/files/duzeriloxofove.pdfIn PDF document text
    • http://am-assets.com/aom/magnolia/userfiles/file/lewedewodizopabew.pdfIn PDF document text
    • http://alemotta.com/resources/original/file/77137096177.pdfIn PDF document text
    • https://alfa-clining.ru/wp-content/plugins/super-forms/uploads/php/files/7de3765018631d9f638a62486aaf1193/33804251978.pdfIn PDF document text
    • http://hellnocancershow.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ab57bed3e46---36102341120.pdfIn PDF document text
    • https://kicksomeglass.com/wp-content/plugins/super-forms/uploads/php/files/79509d34434388f0770830e4788ecb93/81323174405.pdfIn PDF document text
    • https://law.com.sg/wp-content/plugins/super-forms/uploads/php/files/dfe8c8704d7f7fd9b6edfe4341e50dfa/sezasojenuviponotew.pdfIn PDF document text
    • http://accurateverdicts.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608c1aa56b97d---18300853038.pdfIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.fontrix.comhttp://www.nhncorp.comIn 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://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_008_off000184b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x184B0 18864 bytes
SHA-256: 39b76348b290e97a903a0e8092314b58e205fc9e686068a23aee59ed9e53a746
font_00_sfnt_off00012f3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x12F3C 5644 bytes
SHA-256: fdeac120958bdba5f3499ea4a679085913b59bee9bfd75dfdc658e9ef4153a9a
font_01_sfnt_off00014251.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14251 3720 bytes
SHA-256: d0c9e33916e9e64e42e31bcf0d345f6c2fcd41735b1a34df0119bd0eb1094281
font_02_sfnt_off00014db0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14DB0 2276 bytes
SHA-256: 0069fcdfb0d15a278d6261ba79e3a8ab1431e421449c0929a49ce00e9e70677c
font_03_sfnt_off0001577d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1577D 10644 bytes
SHA-256: 1a5613467ebd3f6b96e999604da6a99cfd47eb3c646fe31ff52b84963ac2e7d5
font_04_sfnt_off00017bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x17BBC 2056 bytes
SHA-256: 7be423a9975dd74696fa28cd46b52a55c3739f4a885228df3b07ea410fd2731b

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