Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ba1342edef32cc…

MALICIOUS

PDF

43.8 KB Created: 2020-10-29 13:14:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: 4cac238cdedf3d60da3a35032c49db75 SHA-1: e65c0257817d1533bef80480f54c44fb4f35100e SHA-256: 46ba1342edef32cc4692f17e342fda14e18ba5c39dff01adb502a930976c6cd5
154 Risk Score

Malware Insights

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

The PDF contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'The Phantom of the Opera' and the malicious URL, suggesting a lure to a phishing or malware distribution site. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://ggtraff.ru/strik?keyword=the+phantom+of+the+opera+character+analysis In PDF document text
    • https://rofetavagamufup.weebly.com/uploads/1/3/4/3/134373504/zakasojepo_gikokumudigu_babuxopikele.pdfIn PDF document text
    • https://vonubaxuted.weebly.com/uploads/1/3/1/4/131452839/pujevetovox-wexikudubosaxun.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/sugaguxagu/99411129799.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/9633/4232/files/ace_stream_media_3.1_android.pdfIn PDF document text
    • https://s3.amazonaws.com/xajowu/insolvency_and_bankruptcy_code_act.pdfIn PDF document text
    • https://s3.amazonaws.com/donake/echourouk_journal_algerien_arabe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0266/8675/0916/files/ge_carescape_v100_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b5a2fd50-a5aa-4b10-8f3b-f53e46e4e516/dana_de_tabasco_o_tigre_cartoon.pdfIn PDF document text
    • https://s3.amazonaws.com/salade/deteccion_de_placa_bacteriana.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/convert_to_word_text_ocr.pdfIn PDF document text
    • https://s3.amazonaws.com/zedilegol/60467134110.pdfIn PDF document text
    • https://s3.amazonaws.com/jedobufudajewu/osiris_dc_database.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/565e7cc0-c346-4cf8-ba5c-c144031931b1/42923732374.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/9175/7737/files/13738345505.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0495/6150/1848/files/23450446611.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/397d4196-154d-47bf-b217-0e3bafef2859/pedaporepes.pdfIn PDF document text
    • https://s3.amazonaws.com/gurowozenupifi/divozobobekesusa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/602c9401-f4aa-4a12-bf17-8b1d72da7de6/jikexerazedege.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c007a18e-8ddf-4746-a9f8-747f5f33ccc5/survivors_download_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wenobagupexekap/en_donde_esta_tu_amor_acordes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0502/3426/1679/files/29787261280.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006d13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D13 5308 bytes
SHA-256: 9c0445e222ed665db3ffdf9bdf81814bc5fdb73cac7cbf52f35edee05113eecc
font_01_sfnt_off00007f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F00 10140 bytes
SHA-256: dc70c5857f267c64b9fa4176835124eb010f87bd4cfb6c153139f9a0aada9f59

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