Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce18444be45c1d02…

MALICIOUS

PDF

36.2 KB Created: 2020-08-20 23:32:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5ddda3b1d01e6788c153c188b1bbb115 SHA-1: 1d003a634882e7ea2b046f87b68ec0d316d2220f SHA-256: ce18444be45c1d0210331222abcd968172303842fc6cdd4eb519aa3ac0f2a2d6
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to external PDF files hosted on various domains. One of these links, 'https://ttraff.cc/pify?keyword=cherchez+la+femme+movie', is identified as a malicious redirector. This suggests the document is designed to lead users to malicious infrastructure, likely for further exploitation or phishing. No scripts were extracted, and the document body is heavily obfuscated, but the presence of the malicious redirector is a strong indicator of malicious intent.

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=cherchez+la+femme+movie
    • http://files.supportcuba.org/uploads/1/3/1/6/131606262/7a718f63c2.pdf
    • http://files.thissideupimages.com/uploads/1/3/1/4/131408465/4fede2e694.pdf
    • http://xiruj.hocorespond.com/uploads/1/3/1/6/131606183/ritowokar.pdf
    • http://files.blucollaritgirl.com/uploads/1/3/0/7/130740012/dofevu.pdf
    • https://cdn.shopify.com/s/files/1/0437/6766/0706/files/suprema_biostar_2_manual.pdf
    • https://cdn.shopify.com/s/files/1/0437/8509/3272/files/pedasutolenemovububino.pdf
    • https://cdn.shopify.com/s/files/1/0431/5031/1579/files/behance_flyer_template_free.pdf
    • https://cdn.shopify.com/s/files/1/0439/0243/5483/files/lesanigigaju.pdf
    • https://cdn.shopify.com/s/files/1/0437/9534/9666/files/46269978171.pdf
    • https://cdn.shopify.com/s/files/1/0436/0981/7251/files/assessment_and_management_of_cauda_equina_syndrome.pdf
    • https://cdn.shopify.com/s/files/1/0432/8525/0216/files/ketuwalutizetuvadadexis.pdf
    • https://cdn.shopify.com/s/files/1/0435/3441/8075/files/javafx_8_css_reference_guide.pdf
    • https://cdn.shopify.com/s/files/1/0444/4015/8374/files/sri_rudram_meaning_in_tamil.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_off00004c2b.bin
8ad887bb7d9de21e2d2819db5e7cfb12f68446cc7c8187f043cb881cbcc8f26b
pdf-font-stream PDF embedded font (sfnt) at offset 0x4C2B 4960 bytes
font_01_sfnt_off00005cf3.bin
afe6cfd63a0cee0cc4c9ee7c7bf891160e8de7b97fef0d8631ea720e3fffdc00
pdf-font-stream PDF embedded font (sfnt) at offset 0x5CF3 11980 bytes