Malicious PDF — malware analysis report

Static analysis result for SHA-256 9a201b6bc2f894a5…

MALICIOUS

PDF

46.9 KB Created: 2020-08-15 05:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f2e7193fbea09740469acf0015a31620 SHA-1: e06ae367f35d9ae2f952e3b117c427a9bed25ebb SHA-256: 9a201b6bc2f894a5dc10347a498f9a60ed0d2e2b5f68491cd267ac2a634d4627
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=anaconda+movie++in+tamil'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL. This suggests a phishing or scam attempt where the user is tricked into clicking a link that leads to malicious content or further compromise.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=anaconda+movie++in+tamil
    • http://files.gailmadeitdesigns.com/uploads/1/3/1/6/131606407/2768442.pdf
    • http://files.brandiecormier.com/uploads/1/3/1/3/131379296/842de64f8.pdf
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/kuxifafupalogibe.pdf
    • https://cdn.shopify.com/s/files/1/0438/5017/0530/files/meteorology_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/xukuvon.pdf
    • https://cdn.shopify.com/s/files/1/0433/9728/3992/files/basic_financial_accounting_concepts.pdf
    • https://cdn.shopify.com/s/files/1/0439/3231/9912/files/33983999248.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/zosakasebiribo.pdf
    • https://cdn.shopify.com/s/files/1/0434/7805/7122/files/adrenal_thyroid_revolution_diet.pdf
    • https://cdn.shopify.com/s/files/1/0436/2970/7422/files/rabupopixefawoje.pdf
    • https://cdn.shopify.com/s/files/1/0454/6107/8174/files/50698728478.pdf
    • https://cdn.shopify.com/s/files/1/0432/4435/5739/files/mathematical_induction_solved_problems.pdf
    • https://cdn.shopify.com/s/files/1/0440/7495/9000/files/30392215262.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006e24.bin
1080569a4bdd32d84b5146d9065f54c06094e544f7aad2cf42ed3a227410a1fb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E24 4860 bytes
font_01_sfnt_off00007e8d.bin
dbaab8dcf32bfe64cb008f34eb54f5316f62236e8dffe3de49b44225404383a5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8D 2656 bytes
font_02_sfnt_off00008993.bin
d5ff5b75b924b5b4a584d69aef3ca16ee3940ad2e768e9cbfc65834fcb48b91e
pdf-font-stream PDF embedded font (sfnt) at offset 0x8993 10944 bytes