Malicious PDF — malware analysis report

Static analysis result for SHA-256 f63133b17bd0bbdb…

MALICIOUS

PDF

44.6 KB Created: 2020-09-28 17:09:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 518d3fd414cd240fe1e589c4128a7b41 SHA-1: ae25ac5736c54f5a9753ca4650012f402e615b53 SHA-256: f63133b17bd0bbdbf66ca3f1bfc9c468c2c8d11c060427b9ece70b40d0555ad3
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to manipulate search engine results, directing users to a malicious redirector at 'ggtraff.ru'. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking PDF links hosted on Shopify, likely to appear legitimate. The primary intent appears to be SEO spam and redirection to malicious infrastructure.

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://ggtraff.ru/mozel?keyword=antagonistas+de+la+aldosterona+mecanismo+de+accion+pdf
    • http://napojibur.vr-dude.com/uploads/1/3/2/6/132695543/ninet.pdf
    • http://files.rhjerkyoutlet.com/uploads/1/3/1/0/131070450/d9ebcf9ec01a.pdf
    • http://files.edbertcheng.com/uploads/1/3/1/3/131379496/8453852.pdf
    • http://bekeb.seamonkey.com.my/uploads/1/3/0/8/130813612/933918.pdf
    • https://site-1036824.mozfiles.com/files/1036824/gewiji.pdf
    • https://site-1037142.mozfiles.com/files/1037142/xigometivefatamefake.pdf
    • https://cdn.shopify.com/s/files/1/0431/5021/3274/files/figure_drawing_for_fashion_design_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49893706483.pdf
    • https://cdn.shopify.com/s/files/1/0457/3764/0092/files/download_film_dilan_1990_full_movie.pdf
    • https://cdn.shopify.com/s/files/1/0434/5774/0967/files/av_tecnologia_da_informao_e_comunicao_estacio.pdf
    • https://cdn.shopify.com/s/files/1/0433/8361/9738/files/angel_eyes_abba_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8986/files/rerabigorejoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2702/8375/files/mcgill_pain_questionnaire.pdf
    • https://cdn.shopify.com/s/files/1/0438/4836/8288/files/povukosuju.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000060f9.bin
22ce431ec8239425e373a4f83f33041d228dc623e61296afb8290c47fb50c7f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60F9 5252 bytes
font_01_sfnt_off000072b4.bin
e94f4247739a3b69384ad42ffdc04fc87c6b69d5ae842ab1391ec59a2d27ffae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72B4 10508 bytes
font_02_sfnt_off000094eb.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x94EB 4324 bytes

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