Malicious PDF — malware analysis report

Static analysis result for SHA-256 e33ce06097e7d6f3…

MALICIOUS

PDF

39.9 KB Created: 2020-08-20 11:52:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e2aab501064d8c205023d043d19bab5 SHA-1: 98a09a5361aed96afd07d71ea90fc7d6f50b28d6 SHA-256: e33ce06097e7d6f34a31901a5903b69a8f12d57747bfbdae350feb618dbeb565
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to manipulate search engine results, directing users to a malicious redirector at `https://ttraff.com/pify?keyword=hyperkalaemia+nhs+guidelines`. This suggests a phishing or scam attempt, likely using SEO poisoning techniques to distribute malicious content. No scripts were extracted, but the PDF structure and embedded links are indicative of a malicious lure.

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=hyperkalaemia+nhs+guidelines
    • http://tisunadus.prosmiledentaltx.com/uploads/1/3/1/3/131398504/panapato-vugujixekobop-tosevepetawune.pdf
    • http://files.cuttingedgewealthadvisors.com/uploads/1/3/1/4/131406365/3c99b.pdf
    • http://files.awakeningthedivinewithin.com/uploads/1/3/1/6/131606025/68c0d68e68.pdf
    • http://jozupam.crrcinc.org/uploads/1/3/1/4/131454215/tuzem-vaseviv-zawezok-bokikugetoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0569/7440/files/83382218207.pdf
    • https://cdn.shopify.com/s/files/1/0434/5534/8888/files/7022598136.pdf
    • https://cdn.shopify.com/s/files/1/0434/1353/6925/files/99606986674.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/tejowekelezodesirosi.pdf
    • https://cdn.shopify.com/s/files/1/0437/7113/4106/files/mob_cap_minecraft.pdf
    • https://cdn.shopify.com/s/files/1/0440/0391/7974/files/61006724543.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/10804612491.pdf
    • https://cdn.shopify.com/s/files/1/0432/5651/2676/files/superlative_adjectives_exercises_with_answers.pdf
    • https://cdn.shopify.com/s/files/1/0434/5790/4792/files/utility_analysis_in_economics.pdf
    • https://cdn.shopify.com/s/files/1/0463/5557/9042/files/59708655161.pdf
    • https://cdn.shopify.com/s/files/1/0427/9051/8940/files/552956366.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_off00005864.bin
e6103703448fe58fe0b29ebed44227542b0129d1069f72cd83030f2371a1d226		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5864 5500 bytes
font_01_sfnt_off00006ae8.bin
9b0ffdde506fd5396b7286244aab880ceacf0e444526e4143fb55a6fd92d8f6f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AE8 12320 bytes

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