Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12e2cc4f8197d89…

MALICIOUS

PDF

40.8 KB Created: 2020-08-15 07:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a0e3bf6bb5a09c2309558f9ae88eb60c SHA-1: c9664954b5304e8553cba30759816d61a9799d12 SHA-256: c12e2cc4f8197d89720661a2265cc5969d52c60b89e5a546b7be5b755a9b63e2
150 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the text 'Acceso remoto android desde pc' and the malicious URL, suggesting a lure for remote access. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.com/pify?keyword=acceso+remoto+android+desde+pc
    • http://files.paxchristisa.org/uploads/1/3/1/3/131379730/towurobizefewa.pdf
    • http://zidopexof.foreverjoyphotography.com/uploads/1/3/1/3/131379552/1beda.pdf
    • https://cdn.shopify.com/s/files/1/0439/2599/5688/files/98242876348.pdf
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/44694797019.pdf
    • https://cdn.shopify.com/s/files/1/0432/7427/2924/files/vojafifi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/bisalotogamulazo.pdf
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/casio_protrek_manual.pdf
    • https://cdn.shopify.com/s/files/1/0439/1128/2843/files/tafiwulapuvo.pdf
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/autodesk_alias_car_modeling_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/kuwafilepajijoriw.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/32158347495.pdf
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/xobafoliwimuzaxebujitosob.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/
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/bisaloto

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f68.bin
cada5c681fa81f5299ef8fc8ed950f89fcd1b07c21be3a0f620afedf33929dbd
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F68 5176 bytes
font_01_sfnt_off000070d4.bin
2e7862f38062c81797ce3b477470245156d38edb6173aa06f2c3acbe8908a938
pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 11064 bytes