Malicious PDF — malware analysis report

Static analysis result for SHA-256 bf80bacc493fbb94…

MALICIOUS

PDF

42.5 KB Created: 2020-08-11 02:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01150327b45df5f1185420b09f034a5b SHA-1: 21ae9e67ad619e7773877fa74bb433e5144933ad SHA-256: bf80bacc493fbb9456c6a35928af351ca5e4ce08e994d6107e24050cf9513921
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify, but one critical link redirects to a known malicious domain (ttraff.cc). This indicates a phishing or scam attempt, likely using the guise of providing a free PDF to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of the document.

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.cc/pify?keyword=dr+joe+dispenza+becoming+supernatural+pdf+free
    • http://files.lovecreating4kids.com/uploads/1/3/2/7/132740987/1920244.pdf
    • http://files.jeansullivanartist.com/uploads/1/3/1/6/131637325/716048.pdf
    • http://files.setthestagecostumesprops.com/uploads/1/3/0/7/130775011/voxubozakudukugabub.pdf
    • http://files.cathydonahoe.net/uploads/1/3/1/0/131070523/3ba826fbc0fc.pdf
    • http://zevokem.mikefosterstunts.com/uploads/1/3/1/6/131607163/4594341f68552.pdf
    • https://cdn.shopify.com/s/files/1/0437/3417/1800/files/93399935274.pdf
    • https://cdn.shopify.com/s/files/1/0433/7215/0947/files/dummit_and_foote_abstract_algebra_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/nubodetagivomoxivufivizu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9354/8444/files/38297359095.pdf
    • https://cdn.shopify.com/s/files/1/0432/7217/5781/files/97522301643.pdf
    • https://cdn.shopify.com/s/files/1/0428/0667/3575/files/altos_product_list.pdf
    • https://cdn.shopify.com/s/files/1/0440/5752/6437/files/share_application_form_format.pdf
    • https://cdn.shopify.com/s/files/1/0427/9464/7719/files/como_tener_autoestima_alta.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vemuvuferakodumi.pdf
    • https://cdn.shopify.com/s/files/1/0434/5243/2537/files/97961736335.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_off000065b1.bin
d251b35843dbc08f941479ecdf82ebfb7fc7ed6ec8b18a4a1e896f3c92148021		 pdf-font-stream PDF embedded font (sfnt) at offset 0x65B1 5740 bytes
font_01_sfnt_off00007935.bin
b6b4070fdff52105363b56d379828ff24bae885b88165bc9fb362817fa2c6f3c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7935 10420 bytes

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