Malicious PDF — malware analysis report

Static analysis result for SHA-256 e205ef2b1149be54…

MALICIOUS

PDF

42.5 KB Created: 2020-08-19 15:33:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c7e7c64aa66454a37f493dacb4fbde5d SHA-1: 043f95bcd65c898201ab85ded6035b4f26de162b SHA-256: e205ef2b1149be54e58edca521796237f1a01f7400f33b9620dc0ea6796ab4c3
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text related to 'animation video editing software free' and embeds numerous links, many pointing to Shopify domains, suggesting a link farm or SEO manipulation tactic. The ML classifier also strongly indicated maliciousness. The primary attack vector appears to be tricking the user into clicking the malicious redirector URL.

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://ttraff.cc/pify?keyword=animation+video+editing+software+free
    • http://files.ubaehawaii.com/uploads/1/3/2/6/132696263/b88cba336e391ec.pdf
    • http://zovade.greecepaint.com/uploads/1/3/1/4/131482975/8188354.pdf
    • http://wasas.projectqueery.org/uploads/1/3/2/7/132740978/tosinatas-vewowogopevurus-rutuzetukapov.pdf
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/vamuxis.pdf
    • https://cdn.shopify.com/s/files/1/0431/9854/6084/files/tejoj.pdf
    • https://cdn.shopify.com/s/files/1/0429/5327/7603/files/sole_proprietor_business_examples.pdf
    • https://cdn.shopify.com/s/files/1/0434/1733/8005/files/93177417862.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bamizubonofosexewa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3867/1010/files/77270628347.pdf
    • https://cdn.shopify.com/s/files/1/0437/3594/1274/files/pavunat.pdf
    • https://cdn.shopify.com/s/files/1/0433/6127/1959/files/wow_addon_folder_windows_10.pdf
    • https://cdn.shopify.com/s/files/1/0431/5162/2306/files/34061283993.pdf
    • https://cdn.shopify.com/s/files/1/0435/0096/1947/files/alimentos_con_alto_contenido_de_potasio.pdf
    • https://cdn.shopify.com/s/files/1/0433/4813/2008/files/ccna_book_arabic.pdf
    • https://cdn.shopify.com/s/files/1/0433/6402/4479/files/mokuko.pdf
    • https://cdn.shopify.com/s/files/1/0434/0937/5397/files/business_case_studies_class_12.pdf
    • https://cdn.shopify.com/s/files/1/0438/2900/2390/files/dipoduzawafawosuwirow.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006893.bin
34fa294bd2e43123ba67ae1f84de1c52b5db397e1b8f3bcaddb95cb957f190e5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6893 5336 bytes
font_01_sfnt_off00007ab2.bin
00b443798fc66c3b8e747f7995ff9e2e707e8db7b3a07f37a19bdcf859da8530		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB2 10092 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.