Malicious PDF — malware analysis report

Static analysis result for SHA-256 d04325e9f3ed0014…

MALICIOUS

PDF

38.7 KB Created: 2020-08-11 16:52:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6dfe66c8f6cd6bd52fa6aa81baf85c9e SHA-1: e021845c1946f00e8ea4ea1225315c8411865e12 SHA-256: d04325e9f3ed00143534cd6ba5ee82f4146e59708942f6413a6f89e4fa60b26c
120 Risk Score

Malware Insights

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

The PDF file contains embedded links that are identified as malicious redirectors. The document body, though heavily obfuscated, suggests a lure related to 'policy and procedure manuals templates'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine visibility for malicious lures.

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/wb?keyword=policy%20and%20procedure%20manuals%20templates
    • http://files.artofyouphotography.com/uploads/1/3/0/7/130775823/2d93cd.pdf
    • http://files.made-in-scandinavian.com/uploads/1/3/1/4/131453054/1027435.pdf
    • http://files.pilatesdonewright.com/uploads/1/3/0/8/130873932/8250716.pdf
    • https://cdn.shopify.com/s/files/1/0429/3237/1622/files/taxipol.pdf
    • https://cdn.shopify.com/s/files/1/0449/4671/8879/files/caballo_de_troya_completo.pdf
    • https://cdn.shopify.com/s/files/1/0433/5032/7451/files/felopaxarolipo.pdf
    • https://cdn.shopify.com/s/files/1/0428/2961/1171/files/lipuzes.pdf
    • https://cdn.shopify.com/s/files/1/0437/7742/5559/files/71510197533.pdf
    • https://cdn.shopify.com/s/files/1/0435/4431/4024/files/netaxejitomaki.pdf
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/raxutemojibojex.pdf
    • https://cdn.shopify.com/s/files/1/0435/2249/0532/files/victoria_secret_job_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/49489564664.pdf
    • https://cdn.shopify.com/s/files/1/0434/6419/6256/files/flashing_dead_nokia_n9.pdf
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/raditenonogexakamozaweses.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_off00005bac.bin
47c248f72b91257f52a0c0eebcbfb88f44247fa33c53425d730fd336080da194		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BAC 5320 bytes
font_01_sfnt_off00006dad.bin
e37eda57a636462379939d7efae4fef4d58c7dd037adc1b6b828254d46c2160c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DAD 9464 bytes

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