Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7b753df1b9d92d5…

MALICIOUS

PDF

41.5 KB Created: 2020-08-16 23:22:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 857b0e3c848abadcbc934e52d1aa53d2 SHA-1: a410d3bfd2f82c0a805e7c1c2dfd327196ede610 SHA-256: b7b753df1b9d92d54b2c91186eb721a9d89fa7e4392ee675126f22b88054de82
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a deceptive message about formatting an SD card, which is a common lure for phishing attacks. It embeds a large number of links, with the primary malicious link redirecting to 'https://ttraff.cc/pify?keyword=cannot+format+sd+card+read+only'. This indicates the document is designed to lead users to malicious infrastructure, likely for further exploitation or credential harvesting.

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=cannot+format+sd+card+read+only
    • http://files.cantonohiolandscaping.com/uploads/1/3/1/4/131437864/xagiregodikaluzigajo.pdf
    • http://files.apdcwa.org/uploads/1/3/1/3/131398131/9351272.pdf
    • http://files.daryljarod.com/uploads/1/3/1/4/131453176/mimodeda.pdf
    • http://gogum.eldercaringcoordinationfl.org/uploads/1/3/2/6/132683169/fc789a.pdf
    • http://files.vikani.co/uploads/1/3/1/3/131384589/3629535.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/1741554469.pdf
    • https://cdn.shopify.com/s/files/1/0430/3018/4087/files/bizasepugeri.pdf
    • https://cdn.shopify.com/s/files/1/0447/7042/7031/files/chapter_5_section_5_parliament_limits_the_english_monarchy.pdf
    • https://cdn.shopify.com/s/files/1/0431/6394/3067/files/47200930772.pdf
    • https://cdn.shopify.com/s/files/1/0437/3233/6791/files/philips_all_in_one_cooker_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0432/2381/0203/files/5503705667.pdf
    • https://cdn.shopify.com/s/files/1/0437/0500/8293/files/93604207284.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/jidubebovanatavavoxome.pdf
    • https://cdn.shopify.com/s/files/1/0432/7990/9030/files/zubuzazaxepi.pdf
    • https://cdn.shopify.com/s/files/1/0445/8142/1215/files/balanopostitis_en_toros.pdf
    • https://cdn.shopify.com/s/files/1/0434/2782/3778/files/75094448233.pdf
    • https://cdn.shopify.com/s/files/1/0433/0799/1208/files/origins_a_short_etymological_dictionary_of_modern_english.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_off000064da.bin
eb2980d78f93e9f22fe6cc451f579795c9b67b2c97e9928cc2217dd38d6ffcb4
pdf-font-stream PDF embedded font (sfnt) at offset 0x64DA 5176 bytes
font_01_sfnt_off00007664.bin
a75586ce09b5a2c322d4d10f8944fc7d6babe70af44d940bc8d9e02cf3ad62ea
pdf-font-stream PDF embedded font (sfnt) at offset 0x7664 10088 bytes