Malicious PDF — malware analysis report

Static analysis result for SHA-256 eb20b6f657605033…

MALICIOUS

PDF

58.9 KB Created: 2020-08-31 00:27:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29dbedfdc6135c8d21459b656e84fe9a SHA-1: 773f8b4faf3632fa90c9ce726367893a7cc19066 SHA-256: eb20b6f65760503342283b7946b434ec6a16d1939acbb59fdf8678c85d173a5e
130 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. This URL is combined with a search query for 'bissell steam cleaner parts walmart', suggesting a lure to trick users into clicking. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to benign Shopify domains but likely serving as a distraction or part of a broader SEO poisoning strategy. The presence of urgency language further supports the malicious intent.

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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=bissell+steam+cleaner+parts+walmart
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/ribagivaw.pdf
    • https://cdn.shopify.com/s/files/1/0429/0517/4183/files/64850624599.pdf
    • https://cdn.shopify.com/s/files/1/0429/3846/6471/files/talerojapupujavobuwetojed.pdf
    • https://cdn.shopify.com/s/files/1/0433/3826/8830/files/barriers_to_communication.pdf
    • https://cdn.shopify.com/s/files/1/0431/4031/7350/files/bisaya_bible_apk_free.pdf
    • https://static.usrfiles.com/ugd/b8c837_6dada1dcff33497a9e03ed2b0f4820b9.pdf
    • https://static.usrfiles.com/ugd/c3548c_745e99404f91414abb4fac487dd8bfc2.pdf
    • https://static.usrfiles.com/ugd/5fd5c1_795155e6a58a4b69b42404448f305c11.pdf
    • https://cdn.shopify.com/s/files/1/0433/9482/6405/files/9227431149.pdf
    • https://cdn.shopify.com/s/files/1/0437/2247/3624/files/10048200004.pdf
    • https://cdn.shopify.com/s/files/1/0433/4940/9950/files/xerikuluda.pdf
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/nuzirululonot.pdf
    • https://cdn.shopify.com/s/files/1/0431/0731/9974/files/56205490437.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/bikakevudag.pdf
    • https://cdn.shopify.com/s/files/1/0435/4542/8120/files/jedupolufujuna.pdf
    • https://cdn.shopify.com/s/files/1/0435/8550/3393/files/xipulogit.pdf
    • https://cdn.shopify.com/s/files/1/0433/4351/1706/files/46672795912.pdf
    • https://cdn.shopify.com/s/files/1/0427/9602/3975/files/vigesezavovadunube.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_off0000aa65.bin
338fd6bcab02c1d6741ed6da1512e512583d6a79b8f3b3a8404eb0749fb524fb
pdf-font-stream PDF embedded font (sfnt) at offset 0xAA65 5220 bytes
font_01_sfnt_off0000bc18.bin
89eb9ef1fad4c090b24683263768e45808e8547368cabadb9a64128c4ab529d0
pdf-font-stream PDF embedded font (sfnt) at offset 0xBC18 10068 bytes