Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c15cfbb7f4432c7…

MALICIOUS

PDF

41.8 KB Created: 2020-08-20 18:25:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5076bde014432e21c3007d2b9f4d84ef SHA-1: 4e03f90f411bd5a618001ddf3e567f10fe85e395 SHA-256: 3c15cfbb7f4432c78f0fd2e6c17d2021e1cb7449667e86e2719b7181b6a58cde
148 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.cc'. The document body also contains this URL, presented as a call-to-action button. Additionally, a heuristic indicates a PDF link farm, with many links pointing to Shopify domains, but the primary redirector is the most concerning. The presence of a callback lure suggests a potential phishing or scam attempt.

Heuristics 5

  • 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns
  • 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.cc/pify?keyword=custom+carbonless+order+forms
    • http://files.jaynardiscounts.com/uploads/1/3/1/8/131856212/zijip-rusef-xutinu.pdf
    • http://files.mscommunicationassociation.com/uploads/1/3/0/7/130738970/wojuse.pdf
    • http://files.lillieslion.com/uploads/1/3/2/7/132740873/jufadamu.pdf
    • http://files.alexhoyleart.com/uploads/1/3/2/6/132681443/lenuwopevedanaxinuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/3835499403.pdf
    • https://cdn.shopify.com/s/files/1/0432/4796/0232/files/bootcamp_for_mac.pdf
    • https://cdn.shopify.com/s/files/1/0435/7249/4495/files/fajisagisor.pdf
    • https://cdn.shopify.com/s/files/1/0438/3493/3408/files/multilayer_blown_film_extrusion_process.pdf
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/54333155374.pdf
    • https://cdn.shopify.com/s/files/1/0439/9664/3486/files/lemawabofejuwiwoxitanelu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3534/4539/files/90006207237.pdf
    • https://cdn.shopify.com/s/files/1/0427/8039/3639/files/inorganic_chemistry_full_notes.pdf
    • https://cdn.shopify.com/s/files/1/0431/1669/1612/files/28789278027.pdf
    • https://cdn.shopify.com/s/files/1/0430/4856/6938/files/16569005742.pdf
    • https://cdn.shopify.com/s/files/1/0434/4381/4560/files/20997750758.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_off000065e6.bin
583ee99fecf6677ab903fe24332499a87cda1c359de2286a250e4a387d00679d
pdf-font-stream PDF embedded font (sfnt) at offset 0x65E6 5212 bytes
font_01_sfnt_off00007781.bin
088b1312c11ebbb69305816294e82e6815c3cb4f8d4d302961af979e9e2366b1
pdf-font-stream PDF embedded font (sfnt) at offset 0x7781 10316 bytes