Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb74e8ebe4dea1ee…

MALICIOUS

PDF

45.2 KB Created: 2020-08-21 13:46:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e92a53bd6ab9530e5f9fed72a32eba6 SHA-1: 7f8590d60515ccef25a4b7d11bb81e448b020aa2 SHA-256: cb74e8ebe4dea1eefe793aa4d934132efe3e7612531017717cef29e20bee7f15
128 Risk Score

Malware Insights

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

The PDF file contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the URL and a lure related to a 'project budget plan template'. The PDF_SEO_LINK_FARM heuristic indicates the presence of numerous external links, suggesting a link farm or distribution mechanism. The SE_DOWNLOAD_BUTTON heuristic further supports the lure to click on a link.

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.cc/pify?keyword=project+budget+plan+template
    • http://pejefa.achievewe.org/uploads/1/3/2/7/132740930/rogebapinatibo_bodebumirodi.pdf
    • http://rolemiso.ennishistory.com/uploads/1/3/1/6/131636947/3a265a.pdf
    • https://cdn.shopify.com/s/files/1/0434/7294/5304/files/xarikomoriwenu.pdf
    • https://cdn.shopify.com/s/files/1/0433/9512/1301/files/reported_cases_of_naegleria_fowleri_in_canada.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/messi_2016_wallpaper.pdf
    • https://cdn.shopify.com/s/files/1/0432/6791/5936/files/65642051611.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luvibuxunefipefijuli.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/66092187479.pdf
    • https://cdn.shopify.com/s/files/1/0446/4692/4451/files/curriculum_vitae_formato_europeo_compilabile.pdf
    • https://cdn.shopify.com/s/files/1/0438/4060/2269/files/graduated_exercises_in_translation_from_arabic_into_english.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/13139855908.pdf
    • https://cdn.shopify.com/s/files/1/0430/7327/4018/files/fototomewezawukixixi.pdf
    • https://cdn.shopify.com/s/files/1/0432/3698/2944/files/jetaluruwabusuvesegizow.pdf
    • https://cdn.shopify.com/s/files/1/0430/9073/9361/files/deploy_keys_github.pdf
    • https://cdn.shopify.com/s/files/1/0435/2914/2426/files/37521866751.pdf
    • https://cdn.shopify.com/s/files/1/0432/7263/4533/files/pajamamifipijim.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_off00007458.bin
1173b8701da6c01b766a0098269fc9851902b00da2f14d8c3d93b8cab5b11fe7
pdf-font-stream PDF embedded font (sfnt) at offset 0x7458 5432 bytes
font_01_sfnt_off000086b3.bin
e05e1e20112a8004727ca487b2d87fdfce895c5792cd072591721df608e88a4b
pdf-font-stream PDF embedded font (sfnt) at offset 0x86B3 9836 bytes