Malicious PDF — malware analysis report

Static analysis result for SHA-256 d964ab2b39b94e19…

MALICIOUS

PDF

43.0 KB Created: 2020-08-07 00:58:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: babf8356c8ef6c88e9f1cfa7e1a68201 SHA-1: 0acf91d0619f8102384bdce89e5bb503635aff40 SHA-256: d964ab2b39b94e19580d900f257d769a7af84fa502234f9faa13b044cf84f9d6
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to ttraff.com. It also exhibits a PDF link farm heuristic, with numerous links to Shopify-hosted PDFs, suggesting an attempt to create a large number of seemingly legitimate but potentially malicious landing pages. The presence of a 'download' lure further supports a malicious intent to trick users into clicking these links. No scripts were extracted, but the PDF structure and embedded links strongly indicate a phishing or redirection attack.

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.com/pify?keyword=bosch+spark+plugs+catalogue+pdf
    • http://files.holistichealingspa.com/uploads/1/3/1/0/131070374/bopakepeti_pakiw.pdf
    • http://files.saratogadandia.org/uploads/1/3/1/4/131453124/modewakukafigugi.pdf
    • http://jawakuzi.mideastchef.com/uploads/1/3/0/8/130815026/2950334.pdf
    • https://cdn.shopify.com/s/files/1/0440/7299/2918/files/npma_33_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/3260/0985/files/jesipomovonis.pdf
    • https://cdn.shopify.com/s/files/1/0428/8000/8355/files/58978846314.pdf
    • https://cdn.shopify.com/s/files/1/0431/4529/8080/files/gadexuga.pdf
    • https://cdn.shopify.com/s/files/1/0431/5404/7137/files/microsoft_prime_discounts.pdf
    • https://cdn.shopify.com/s/files/1/0437/5835/4584/files/kakiwob.pdf
    • https://cdn.shopify.com/s/files/1/0431/8704/4515/files/47548591059.pdf
    • https://cdn.shopify.com/s/files/1/0432/5608/6696/files/zetepowuki.pdf
    • https://cdn.shopify.com/s/files/1/0431/8052/3678/files/56105624133.pdf
    • https://cdn.shopify.com/s/files/1/0427/5165/6102/files/geometric_progression_word_problems.pdf
    • https://cdn.shopify.com/s/files/1/0432/8180/9558/files/82162860185.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_off0000693b.bin
c09c54ffedc323a18c4e8bfa84b3044f3ca012ebcd23c3a79b9e83b1456abaa1
pdf-font-stream PDF embedded font (sfnt) at offset 0x693B 5528 bytes
font_01_sfnt_off00007c07.bin
615431a2f1344096b9336eaecd137f73a8c6f5367226a604b4d04dff8f89e438
pdf-font-stream PDF embedded font (sfnt) at offset 0x7C07 10312 bytes