Malicious PDF — malware analysis report

Static analysis result for SHA-256 afda5440bb44d930…

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 17:06:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 784f660a0719efb00308945e5b7e4404 SHA-1: 0381313b18b447d6d2601c3e4fb85ca6c85e5df3 SHA-256: afda5440bb44d930e10ddcc9d5a8be0e6d255745c6309b4c9523033b94173290
128 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text suggesting it is a 'bug tracking excel template' and includes the malicious URL. The presence of numerous other PDF links, identified as a link farm, further supports a malicious intent to redirect users to potentially harmful content.

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=bug+tracking+excel+template
    • https://static.usrfiles.com/ugd/a8ca0f_53d901c782b34463a482a46a10899972.pdf
    • https://static.usrfiles.com/ugd/b8c837_9cd91499aace4db4a667e13825fa6b25.pdf
    • https://static.usrfiles.com/ugd/0f1814_50c4722052c04ccfb210f2bb0c4cefcc.pdf
    • https://static.usrfiles.com/ugd/1f2646_6d0f2cf6661d4de088e71f0912966a45.pdf
    • https://static.usrfiles.com/ugd/430cb2_1898091e3c8a4f44b255e6b73f97d96b.pdf
    • https://static.usrfiles.com/ugd/dfb5f8_026decf246a94f3d85fcc79da04394ea.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c3ceb294fdc4c25adea134caff4aff7.pdf
    • https://static.usrfiles.com/ugd/b8c837_8e52b85748f1468db76280c43edec44d.pdf
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/lifivarujapopituva.pdf
    • https://cdn.shopify.com/s/files/1/0434/1478/2119/files/taiwan_railway_timetable.pdf
    • https://static.usrfiles.com/ugd/b8c837_1419705ab4874e0bac4a3c4176785338.pdf
    • https://static.usrfiles.com/ugd/95089d_ec7713e154b34000965c01190669a388.pdf
    • https://static.usrfiles.com/ugd/3fc21f_2bcdfe1f0e274e4d8d0223c515d51a4b.pdf
    • https://static.usrfiles.com/ugd/f7fbc8_3f20e14df639442c8051e314d2e0d9e5.pdf
    • https://static.usrfiles.com/ugd/e2c250_92bbeeb19755474388b28b2f79359d99.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_off000068f2.bin
9df9d73c394fb1a0a796bdebc38157d3255cf23b74777078c59189533bf1c5ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0x68F2 5256 bytes
font_01_sfnt_off00007aca.bin
a4874431557ca98f729695371c832680db9c36620abbf725df38a05812841087		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ACA 9896 bytes

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