Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ed4c27d704af76e…

MALICIOUS

PDF

42.5 KB Created: 2020-08-29 22:54:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ce774720a5d044d8fa6556d3e42263a2 SHA-1: 62873275567f90e14d9acc41ee905016f184fbbf SHA-256: 3ed4c27d704af76e76f4d4643cce3c021672f65e5a67790c3e00f5c1f4e75703
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'. Additionally, it exhibits characteristics of a link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the malicious URL and a benign-looking PDF link, suggesting a lure to a malicious site under the guise of providing a document.

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/wix?keyword=white+pills+m358
    • https://cdn.shopify.c
    • https://cdn.shopify.com/s/files/1/0434/1592/8997/files/47690777363.pdf
    • https://cdn.shopify.com/s/files/1/0437/6212/2903/files/bujesogofim.pdf
    • https://cdn.shopify.com/s/files/1/0432/8495/5300/files/abruptio_placentae_management.pdf
    • https://cdn.shopify.com/s/files/1/0434/2526/7877/files/gebidomomelubexolukevefek.pdf
    • https://cdn.shopify.com/s/files/1/0440/9052/3813/files/58786160974.pdf
    • https://cdn.shopify.com/s/files/1/0429/8611/1137/files/majefibidujawunuwodi.pdf
    • https://cdn.shopify.com/s/files/1/0434/2625/0901/files/wafibugi.pdf
    • https://cdn.shopify.com/s/files/1/0434/0062/6341/files/wetupodazaridik.pdf
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/cbse_date_sheet_2020_class_10_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/5426/0643/files/bojuxorajawabo.pdf
    • https://static.usrfiles.com/ugd/0c41e7_36c918687ab44c4fb8c364ce532f7441.pdf
    • https://static.usrfiles.com/ugd/3e9e83_217cf7ee07114c07b819a288c6e346f8.pdf
    • https://static.usrfiles.com/ugd/0779a3_86bfc667a04d4572b168a8588eb8b7f1.pdf
    • https://static.usrfiles.com/ugd/b8c837_0615030b34e94baab4a6cb96bc143ad6.pdf
    • https://static.usrfiles.com/ugd/b8c837_9924ba6f3a9b4606930d5e5cfdb9bdef.pdf
    • https://cdn.shopify.com/s/files/1/0432/0546/0125/files/samsung_hw-k3602Fza_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/6054/3138/files/mewonipatemetukitefonawev.pdf
    • https://cdn.shopify.com/s/files/1/0435/4952/4127/files/25635429250.pdf
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/39456290353.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_off00006791.bin
ea4e480db0a52c0b4b321e637288a4877ffd85fef251582088a959a6e1e93437
pdf-font-stream PDF embedded font (sfnt) at offset 0x6791 5248 bytes
font_01_sfnt_off0000795d.bin
18bd267b4152a17f5534a6cd930adf2439d832b3be1d8d3237ce559f4b71f631
pdf-font-stream PDF embedded font (sfnt) at offset 0x795D 10584 bytes