Malicious PDF — malware analysis report

Static analysis result for SHA-256 235a47926636f64b…

MALICIOUS

PDF

137.5 KB Created: 2020-08-11 03:26:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ad4de20b2020be5090c4badbf858f95 SHA-1: 4fdd104d8fb5b375efa5c2879fb264e77c982184 SHA-256: 235a47926636f64b1afbffd09b79889009c90b240fd80674c5cef12011ca6da1
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of embedded links, many of which point to suspicious or unknown domains, indicating a link farm or redirection strategy. One critical heuristic identified a link to known malicious redirector infrastructure at 'https://ttraff.cc/pify?keyword=buddha+meditation+techniques+pdf'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary purpose is to direct users to malicious content.

Heuristics 3

  • 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.
  • 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://ttraff.cc/pify?keyword=buddha+meditation+techniques+pdf
    • http://jowedawu.gflight559.com/uploads/1/3/0/7/130776485/lolerezuwum.pdf
    • http://kezuju.siakyriakakos.com/uploads/1/3/1/3/131381078/mexad.pdf
    • http://zezuda.lyndsdesignhouse.com/uploads/1/3/0/7/130775997/pebade-babigeb-todoka.pdf
    • http://files.soulalchemyhealing.com/uploads/1/3/1/3/131398242/vuzujoredij_vudol_xarawabarowa_lopalomafi.pdf
    • http://files.pamaplefestival.com/uploads/1/3/1/1/131164520/a081bf5.pdf
    • https://cdn.shopify.com/s/files/1/0430/1147/3571/files/all_cheats_of_gta_vice_city_download.pdf
    • https://cdn.shopify.com/s/files/1/0439/7858/8318/files/aprendizaje_basado_en_proyectos_autores.pdf
    • https://cdn.shopify.com/s/files/1/0435/3166/5562/files/mifipiverud.pdf
    • https://cdn.shopify.com/s/files/1/0435/3651/5224/files/competition_analysis_example.pdf
    • https://cdn.shopify.com/s/files/1/0429/5337/5897/files/zedifudu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9610/4348/files/nojusujoraxojowip.pdf
    • https://cdn.shopify.com/s/files/1/0430/2408/9242/files/denukuzujofil.pdf
    • https://cdn.shopify.com/s/files/1/0430/2936/4885/files/gisiwaku.pdf
    • https://cdn.shopify.com/s/files/1/0433/1637/9816/files/sumofixoxiletesud.pdf
    • https://cdn.shopify.com/s/files/1/0432/7184/8100/files/xuxagawe.pdf
    • https://cdn.shopify.com/s/files/1/0428/9282/0647/files/xuzamazapopateboxulusavob.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/55497749658.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/

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00017b99.bin
9ef33014e6fc4bce05626e2d1210af19cc2137fc63deed06ba0d277c700abab4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17B99 18720 bytes
font_01_sfnt_off0001b670.bin
ab7a58ff1344a7710793b0d814c61c9e3127c161fbfb6cf5e467e37db0b49864		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1B670 5440 bytes
font_02_sfnt_off0001c8d8.bin
9d45c7d7140dc38d015d9ad7e36f918332e98ff3f933d443eb65e3854b2eae8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1C8D8 18068 bytes
font_03_sfnt_off0001f0be.bin
5b98e97e87707c8f9a7f481fb6359923e95e7abb094dbd6c6f9362c244a3f7bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1F0BE 12952 bytes

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