Malicious PDF — malware analysis report

Static analysis result for SHA-256 aafc2474a5775ec2…

MALICIOUS

PDF

57.5 KB Created: 2020-08-06 01:13:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c581a0723732a2dd44e7a63b9d0e069 SHA-1: 09de34303ef47828b103d5477db850cdd3df5a3f SHA-256: aafc2474a5775ec2c3143a4ea2945454d7d0fef930e9ed29c090fe7dc21f4e72
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to a 'Tokyo itinerary 5 days pdf' and a URL that appears to be part of a link farm designed to attract search engine traffic. This suggests a phishing or redirection attempt.

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=tokyo+itinerary+5+days+pdf
    • http://files.earlgrenvillekilleenart.com/uploads/1/3/0/9/130969810/zilevukoda.pdf
    • http://files.oakgrovevet.net/uploads/1/3/0/7/130738614/gibibofeven.pdf
    • http://files.rhadpc.com/uploads/1/3/1/8/131871586/foxaxifasavuxu.pdf
    • http://bosurener.norlandblair.com/uploads/1/3/0/7/130739777/3139128.pdf
    • http://files.slmdigitalmarketingsolutions.com/uploads/1/3/0/7/130738681/7534533.pdf
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/java_swap_method.pdf
    • https://cdn.shopify.com/s/files/1/0439/3716/9576/files/3492454350.pdf
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/25139276921.pdf
    • https://cdn.shopify.com/s/files/1/0429/7513/3859/files/82639249451.pdf
    • https://cdn.shopify.com/s/files/1/0434/0878/5562/files/92790387363.pdf
    • https://cdn.shopify.com/s/files/1/0434/4872/9766/files/why_arusha_declaration_failed.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/19463184481.pdf
    • https://cdn.shopify.com/s/files/1/0430/1642/1529/files/megimizunamivovivalexiro.pdf
    • https://cdn.shopify.com/s/files/1/0427/8249/0791/files/jutavetadepuvakajuvogog.pdf
    • https://cdn.shopify.com/s/files/1/0432/3786/7687/files/ravpower_filehub_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6885/files/boiler_testing.pdf
    • https://cdn.shopify.com/s/files/1/0428/7243/8947/files/firimulevuwaforexix.pdf
    • https://cdn.shopify.com/s/files/1/0434/2549/7239/files/remove_file_from_git_add.pdf
    • https://cdn.shopify.com/s/files/1/0431/3910/4917/files/86925073873.pdf
    • https://cdn.shopify.com/s/files/1/0432/1814/1347/files/kuvatibadufudisa.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_off00009593.bin
d8b280dc3a5b8a38d3d80463309157e330af8229afdfb6d509f196f951478732
pdf-font-stream PDF embedded font (sfnt) at offset 0x9593 5240 bytes
font_01_sfnt_off0000a78b.bin
add4fb2ad6a1e0fbd31f366001bb982217ef858713da9403f306a8cd75e3c194
pdf-font-stream PDF embedded font (sfnt) at offset 0xA78B 15436 bytes