Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f4e902d7556148a…

MALICIOUS

PDF

39.7 KB Created: 2020-08-17 02:43:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9dd5017d38fd476a3f14dc3bbe71d477 SHA-1: 03d62e3341e83ebe0e56cf8fa766aebdfc910a4e SHA-256: 1f4e902d7556148a0109fe6be4334aa04d2854f0cd3be7eac8bbbb99d41365ac
150 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a financial dashboard template. The link points to 'ttraff.com', which is known for redirecting to malicious sites. The document also features a link farm, with many links pointing to Shopify domains, likely for SEO manipulation to increase visibility. The ML classifier strongly indicated maliciousness.

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=personal+financial+dashboard+excel+template
    • http://bagera.savoytherapy.com/uploads/1/3/1/6/131636725/taxuvo.pdf
    • http://ruzefap.chagahealthandwellness.com/uploads/1/3/1/3/131382274/6261558.pdf
    • https://cdn.shopify.com/s/files/1/0432/5759/4011/files/honda_hrm215_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0435/3818/6394/files/aria_bachianas_brasileiras_no_5.pdf
    • https://cdn.shopify.com/s/files/1/0428/8148/2919/files/catalogo_suvinil.pdf
    • https://cdn.shopify.com/s/files/1/0447/3189/1861/files/list_of_adjectives_to_describe_a_person_with_meaning.pdf
    • https://cdn.shopify.com/s/files/1/0437/7382/1082/files/51725026264.pdf
    • https://cdn.shopify.com/s/files/1/0430/2998/7489/files/momazadojuzafogug.pdf
    • https://cdn.shopify.com/s/files/1/0428/6627/8556/files/33258690288.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5672/files/gebawovasinizuzugivalefow.pdf
    • https://cdn.shopify.com/s/files/1/0428/6329/6678/files/58980477440.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_off00005c9b.bin
b62d1730443c340abb4fde817d31671b54d514006ced1b5f438a52f4c34ef541		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9B 5604 bytes
font_01_sfnt_off00006f77.bin
c948d88a79539dcc28242ce615e3b5f4a35cd2315a21736c832abe088347e180		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F77 10168 bytes

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