Malicious PDF — malware analysis report

Static analysis result for SHA-256 4172031b2aa3bbc1…

MALICIOUS

PDF

120.0 KB Created: 2020-07-22 08:57:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77e31717981e20271271d8656d041b99 SHA-1: 0c8747c2eea98806223f163ef1d96794d342b55b SHA-256: 4172031b2aa3bbc139d8be83adc2fbcc016d71196cb77f6b50691a76d6472b9f
120 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'. This indicates the document is designed to trick users into visiting a malicious site, likely for further exploitation or credential harvesting. The PDF also contains a large number of external links, suggesting a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted from this sample.

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.com/pify?keyword=old+alchemy+books+pdf
    • http://files.sarahbethart.com/uploads/1/3/2/6/132681194/bidatitasozerag.pdf
    • http://files.meredithkaler.com/uploads/1/3/1/3/131398367/2065088.pdf
    • http://files.michaelrlado.net/uploads/1/3/0/8/130814345/84968f914d31c1.pdf
    • http://files.rycroftlabradors.com/uploads/1/3/2/6/132680813/zisojiva_gorawuzi_rodewatadiwa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69262577592.pdf
    • https://cdn.shopify.com/s/files/1/0436/4884/3934/files/zojususoburotenewibewato.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/82505274200.pdf
    • https://cdn.shopify.com/s/files/1/0432/3812/9823/files/gofinefewafu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2403/9592/files/66977349491.pdf
    • https://nutuwuja.files.wordpress.com/2020/06/13606164158.pdf
    • https://weberex.files.wordpress.com/2020/06/nirakegazimeduw.pdf
    • https://getakoridun.files.wordpress.com/2020/06/97872665626.pdf
    • https://fifonupiza861279328.files.wordpress.com/2020/06/xedawuvipe.pdf
    • https://nagitoxidu.files.wordpress.com/2020/07/9281774172.pdf
    • https://cdn.shopify.com/s/files/1/0430/6350/9143/files/zuxivejuribojuke.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/9959313526.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/28535635381.pdf
    • https://cdn.shopify.com/s/files/1/0433/3273/1038/files/tazogazasiloredujowume.pdf
    • https://cdn.shopify.com/s/files/1/0429/9735/0554/files/17508309360.pdf
    • https://cdn.shopify.com/s/files/1/0431/6132/1634/files/jorudix.pdf
    • https://cdn.shopify.com/s/files/1/0430/0141/3785/files/subifa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/91428743782.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000179c5.bin
f356aafb9f2f397341d0761e5f8c1ca4dde245ee61f1ddb0257da754e2e1d764
pdf-font-stream PDF embedded font (sfnt) at offset 0x179C5 5184 bytes
font_01_sfnt_off00018b6f.bin
baafbee15cbd7d1a739c42e1eb1d358b52cff9b1e64b3396ba88664985f17139
pdf-font-stream PDF embedded font (sfnt) at offset 0x18B6F 15588 bytes
font_02_sfnt_off0001b9fc.bin
09f3a5129a6dd9668057e77b616e6fb4710cb67a03d9b7b61182e64c960ed1c1
pdf-font-stream PDF embedded font (sfnt) at offset 0x1B9FC 16828 bytes