Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae1a092a96d0b1b5…

MALICIOUS

PDF

40.4 KB Created: 2020-08-30 05:45:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b15387aad7cf639566fbfbd7206af6ea SHA-1: f4716203137861c40c6a6fb04e00dde9f7ff4238 SHA-256: ae1a092a96d0b1b55df79b9955e4bbc7dad4f3d0015388967c51b8409af196fa
150 Risk Score

Malware Insights

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

The PDF contains a link farm of 16 SEO-optimized PDF documents, with the primary malicious redirector URL being https://ttraff.me/wix?keyword=magma+orb+totem. This indicates a social engineering attempt to direct users to malicious infrastructure. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.me/wix?keyword=magma+orb+totem
    • https://cdn.shopify.com/s/files/1/0429/5832/3865/files/82395929868.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9037/files/10431101653.pdf
    • https://cdn.shopify.com/s/files/1/0449/9125/0591/files/bengali_news_paper_today.pdf
    • https://cdn.shopify.com/s/files/1/0431/9661/2768/files/fate_extella.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7507/files/94647204137.pdf
    • https://cdn.shopify.com/s/files/1/0435/8176/7841/files/72246334309.pdf
    • https://cdn.shopify.com/s/files/1/0435/2960/1178/files/bmc_journal_format.pdf
    • https://cdn.shopify.com/s/files/1/0457/4612/7004/files/85652603488.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/brand_activation_report_template.pdf
    • https://static.usrfiles.com/ugd/69695d_05d96cf7823b4af287cc8a19081db4aa.pdf
    • https://static.usrfiles.com/ugd/a59130_a8f0935d975348d5acecbfce6b27d937.pdf
    • https://cdn.shopify.com/s/files/1/0437/6431/8359/files/intel_hd_515_driver.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8822/files/19760417467.pdf
    • https://cdn.shopify.com/s/files/1/0439/8268/4318/files/kemaweganatozivinoliwos.pdf
    • https://cdn.shopify.com/s/files/1/0432/5382/5704/files/53896865346.pdf
    • https://cdn.shopify.com/s/files/1/0431/7950/7880/files/sunuli.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_off00006151.bin
e279c444ac52d161a8dd234e31e3efb71e6e6dc4c06c37eeb059c5e83df512d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6151 4940 bytes
font_01_sfnt_off00007214.bin
0a0bc6a14705b7e73edaee5ca49f55e8272ccc3eadcca511684a3e2c71f41b4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7214 10256 bytes

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