Malicious PDF — malware analysis report

Static analysis result for SHA-256 dbeac0d6b4f84d8d…

MALICIOUS

PDF

39.3 KB Created: 2020-08-24 00:47:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c1382ba885d3c04c971d5915a7b0923f SHA-1: d33707e0e348c01a13bace4dd449092b05fe3763 SHA-256: dbeac0d6b4f84d8d620807cbaa0def1a8674920c641dbec9670a680f69120db2
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'Rio cartoon full movie in tamil', suggesting a lure. The PDF also exhibits a link farm behavior, with numerous embedded links, many pointing to shopify.com domains but also including several unknown URLs that are likely part of the malicious infrastructure.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=rio+cartoon+full+movie+in+tamil
    • http://wirup.vasilinaorlova.com/uploads/1/3/0/8/130874655/d4d1ef47662.pdf
    • http://files.geraldamcdermott.com/uploads/1/3/0/7/130740130/e9d44b121120f53.pdf
    • http://files.paddyharrop.org/uploads/1/3/1/4/131453312/zenoxotepesaxox-gobokalofok-fuzuwerevig.pdf
    • https://cdn.shopify.com/s/files/1/0434/2058/2050/files/68803607059.pdf
    • https://cdn.shopify.com/s/files/1/0439/2442/2811/files/lagodute.pdf
    • https://cdn.shopify.com/s/files/1/0431/5312/9640/files/18337515309.pdf
    • https://cdn.shopify.com/s/files/1/0449/2584/5659/files/1-_99_smithing.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5004/files/20315329978.pdf
    • https://cdn.shopify.com/s/files/1/0437/2312/8986/files/tv_guide_gold_coast_qld_australia.pdf
    • https://cdn.shopify.com/s/files/1/0462/6428/7381/files/gelijujakosu.pdf
    • https://cdn.shopify.com/s/files/1/0444/4468/0359/files/binary_search_tree_traversal_inorder_preorder_postorder_example.pdf
    • https://cdn.shopify.com/s/files/1/0438/2756/0610/files/discovering_behavioral_neuroscience_freberg.pdf
    • https://cdn.shopify.com/s/files/1/0429/7365/9290/files/wopavavevemotasotosazege.pdf
    • https://cdn.shopify.com/s/files/1/0433/4757/4949/files/lasunopoxupomoxuzores.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_off00005a63.bin
842875778b94be98c4e16cd66adb5df34583e1c58b634d1163255a65b006d134		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5A63 4916 bytes
font_01_sfnt_off00006b0b.bin
7a628977c4ebd2942b60a1a7000c1f8fe661226542e500553cb23690f2e0f545		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B0B 10936 bytes

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