Malicious PDF — malware analysis report

Static analysis result for SHA-256 4d3631d6fe01c84e…

MALICIOUS

PDF

42.9 KB Created: 2020-08-05 13:13:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 560ae56ae004a60eba3e0be9c8a03f88 SHA-1: 572de48d984e03b667dfeeeccddca406a24e1f7e SHA-256: 4d3631d6fe01c84e590b0ce85aeb864429956a5d2cc0b5db65baf52248688d36
120 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, a common tactic for SEO poisoning and redirecting users to malicious sites. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the target URL, suggesting the PDF's primary purpose is to facilitate this redirection.

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.cc/pify?keyword=foundations+of+engineering+acoustics+fahy+pdf
    • http://files.capstonechiro.com/uploads/1/3/1/4/131453256/38073.pdf
    • http://mavupu.casinodealerswebsite.com/uploads/1/3/1/3/131384429/3653510.pdf
    • http://files.wtd-peru.org/uploads/1/3/2/6/132695701/edb45837c.pdf
    • http://files.kyliejordanartistry.com/uploads/1/3/0/8/130814339/140c40a03.pdf
    • http://files.charterschoolwatchdog.com/uploads/1/3/1/0/131071312/9f24baa9.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85583151980.pdf
    • https://cdn.shopify.com/s/files/1/0435/0833/4744/files/balufomezedowuwevuj.pdf
    • https://cdn.shopify.com/s/files/1/0431/4116/9309/files/love_poems_of_rumi_deepak_chopra.pdf
    • https://cdn.shopify.com/s/files/1/0432/0601/7186/files/buxiduremudigegimuxat.pdf
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/16160486716.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/tiligosogiduvavomudenawi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8135/0820/files/noguwifefon.pdf
    • https://cdn.shopify.com/s/files/1/0438/7579/5099/files/lorixot.pdf
    • https://cdn.shopify.com/s/files/1/0439/0286/1464/files/80127030116.pdf
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/benzenoid_aromatic_compounds.pdf
    • https://cdn.shopify.com/s/files/1/0432/2187/6900/files/4032199487.pdf
    • https://cdn.shopify.com/s/files/1/0431/7564/1247/files/59427081754.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/
    • https://cdn.shopify.com/s/files/1/0436/5962/4606/files/benzenoid_aromatic_compounds

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000068c5.bin
e23ef06a64fbbaed805ccfbaaf6ac5648bc9192e30fc87afc5bcd949c5ca53e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68C5 5444 bytes
font_01_sfnt_off00007b50.bin
1cebf9ca740e487fbd674d383ceb3c281be82137a898020c6f5b7942a683f0aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B50 10128 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.