Malicious PDF — malware analysis report

Static analysis result for SHA-256 dba939fc26cf850b…

MALICIOUS

PDF

58.3 KB Created: 2020-08-30 03:11:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 369e811b6c8656f1e53b3fa01dc9a213 SHA-1: 52e99559bc4d6439aafc9e563743278f50bdde02 SHA-256: dba939fc26cf850b26a42c52201db63a3a3970d82f96f4235ecefa11171e3fd8
128 Risk Score

Malware Insights

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

The PDF contains a lure related to an "authentication card" and includes a mass of external links, many pointing to Shopify-hosted PDFs. One of these links, https://ttraff.cc/wix?keyword=carte+d+authenticite, redirects to known malicious infrastructure. This suggests a phishing or scam campaign designed to lead users to malicious sites. No scripts were extracted from this sample.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wix?keyword=carte+d+authenticite
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/94229011204.pdf
    • https://cdn.shopify.com/s/files/1/0428/6434/5255/files/89328767576.pdf
    • https://cdn.shopify.com/s/files/1/0431/7678/8117/files/sepuzimikukogibasez.pdf
    • https://cdn.shopify.com/s/files/1/0460/4008/8740/files/ielts_writing_task_2_model_answer.pdf
    • https://cdn.shopify.com/s/files/1/0433/7719/7221/files/gotesemawagenujejat.pdf
    • https://cdn.shopify.com/s/files/1/0431/3881/0010/files/91371930013.pdf
    • https://cdn.shopify.com/s/files/1/0435/9720/1567/files/kjv_bible_quiz_questions_and_answers.pdf
    • https://static.usrfiles.com/ugd/078c79_e016795f496c40518c0f0cb94231bcdc.pdf
    • https://static.usrfiles.com/ugd/b8c837_4e3e827f545842c9ad5eab9ce9d56d32.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/tofarurutora.pdf
    • https://cdn.shopify.com/s/files/1/0432/7482/9987/files/jegebopobamedinoruxedodow.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_005_off00009f30.bin
5463ed9005832081e0b9c6782b8fcb1095c696cc0838bf9d4e9fc0d7b30bd555		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x9F30 25732 bytes
font_00_sfnt_off00006b9a.bin
a3abef3854a4368f353696472d2dee00e3d8bf0788aee8fa29edfe64cade8c34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B9A 4612 bytes
font_01_sfnt_off00007b36.bin
7ecedbb3964f8a8677b97283afe1123684ed35b168be1013afd64f325853897d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B36 10620 bytes
font_03_sfnt_off0000ccaf.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCCAF 4324 bytes

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