Malicious PDF — malware analysis report

Static analysis result for SHA-256 8d40911c6e6ebeeb…

MALICIOUS

PDF

56.2 KB Created: 2020-08-22 19:28:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ca1bfe0beed2671d37a9c644de3d346b SHA-1: 55059bdf429689b858591f4ac3cb3499f0baded6 SHA-256: 8d40911c6e6ebeeb4ba74831b9f32a8f5424459cd56a4e9985200df40590b283
152 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.cc/pify?keyword=minions+movie+1'. This URL is likely used to redirect the user to a malicious site. The PDF also exhibits characteristics of a link farm, with many links pointing to shopify.com domains, suggesting an attempt to manipulate search engine results or distribute malicious content. The ML classifier strongly supports the malicious nature of this PDF.

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=minions+movie+1
    • http://files.starlitedance.ca/uploads/1/3/2/6/132695734/deramovawipel_wupem_vapaw_moduxezodapuzi.pdf
    • http://debomun.appledentaleducation.com/uploads/1/3/2/3/132302842/803f83472588096.pdf
    • http://tunesaweg.savvytravelsisters.com/uploads/1/3/0/9/130969426/35f51e9.pdf
    • https://cdn.shopify.com/s/files/1/0429/2060/7900/files/65073536109.pdf
    • https://cdn.shopify.com/s/files/1/0439/9307/1774/files/17584809172.pdf
    • https://cdn.shopify.com/s/files/1/0440/0293/4942/files/fofesawimaparutuwidow.pdf
    • https://cdn.shopify.com/s/files/1/0431/8229/3141/files/12355624.pdf
    • https://cdn.shopify.com/s/files/1/0428/8181/0595/files/94171106595.pdf
    • https://cdn.shopify.com/s/files/1/0430/4535/5682/files/uncomplicated_diverticulitis_treatment_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0437/2666/7925/files/zagazadiwe.pdf
    • https://cdn.shopify.com/s/files/1/0431/0827/0244/files/vonugotu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0660/5981/files/72591809142.pdf
    • https://cdn.shopify.com/s/files/1/0428/2118/9788/files/gobisewosuref.pdf
    • https://cdn.shopify.com/s/files/1/0430/0311/7721/files/vakovoto.pdf
    • https://cdn.shopify.com/s/files/1/0427/4556/1254/files/whirlpool_cabrio_platinum_washer_and_dryer_manual.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_off00008f93.bin
205505fe7365f07e33dcb3a08665adc47a9423b0a78bb45803391e22b870606e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F93 4316 bytes
font_01_sfnt_off00009e20.bin
29ee8f118e50c869d7f401c634c983a9c6e85022f54247bdbf83ef3f2179e821		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E20 13000 bytes
font_02_sfnt_off0000c630.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC630 4324 bytes

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