Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9ba6099e271d681…

MALICIOUS

PDF

45.8 KB Created: 2020-08-26 21:53:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: bafea0461efaa9d4e8102a436e01d892 SHA-1: 9fa0b36282437d4eff90a254e9a6bc8091a41bca SHA-256: f9ba6099e271d68189bfe22294d8c1d0396ec3dfc28a4bbff258663fe0a721a9
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=efecto+mariposa+pelicula+online'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though heavily obfuscated, also contains the malicious URL. This suggests the primary goal is to redirect the user to a potentially harmful site.

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=efecto+mariposa+pelicula+online
    • http://files.ohioadolescenthealth.org/uploads/1/3/2/7/132740905/856f4f516e034ea.pdf
    • http://files.pedagoguepodcast.com/uploads/1/3/2/6/132680813/9569cebbdca725b.pdf
    • http://simavi.levelnegotiations.com/uploads/1/3/0/7/130775209/lexefipezodaramezak.pdf
    • http://files.busybeeorganize.ca/uploads/1/3/0/9/130969004/gojebifazalomo-maxurapokenoxo.pdf
    • http://pigoz.simonperathoner.com/uploads/1/3/2/3/132303054/3546616.pdf
    • https://cdn.shopify.com/s/files/1/0441/2529/0648/files/sat_ii_biology_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0430/6649/1042/files/blackmart_pro_cracked_apk.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/english_to_sesotho_dictionary_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8164/files/nawobaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/5704/5916/files/bomeropoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/2313/0009/files/73547230052.pdf
    • https://cdn.shopify.com/s/files/1/0433/3430/3912/files/avebury_map.pdf
    • https://cdn.shopify.com/s/files/1/0428/4956/6886/files/18009209739.pdf
    • https://cdn.shopify.com/s/files/1/0431/1403/7397/files/st_john_the_baptist_westport_ma.pdf
    • https://cdn.shopify.com/s/files/1/0433/3345/1944/files/puxamewapawifenonedeju.pdf
    • https://cdn.shopify.com/s/files/1/0447/9546/1783/files/basel_convention_on_hazardous_waste.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_off000073ef.bin
ac1248626e13f0724ef999c2e57df3180edaee67036f3a83b01c2bd531b8a3a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x73EF 5120 bytes
font_01_sfnt_off0000853c.bin
c7a7364eb2303179bb7f85b7bb2633f01818e42706e780abaff76aa56594318f
pdf-font-stream PDF embedded font (sfnt) at offset 0x853C 11476 bytes