Malicious PDF — malware analysis report

Static analysis result for SHA-256 cad306957aeb64ae…

MALICIOUS

PDF

79.8 KB Created: 2020-08-04 15:04:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a2349beb539df72faaeadda2c464b726 SHA-1: 3d5c366b196c62cbe566f977c3fd12999e2bac7b SHA-256: cad306957aeb64aed7541a3b771c688f07e3a0fd63df7821c3c54aa5379b776f
150 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 URL is likely used to redirect users to a malicious site. The document also exhibits characteristics of a link farm, with numerous embedded URLs, many pointing to Shopify domains, suggesting an attempt to obscure the final malicious destination. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence of malicious intent.

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.com/pify?keyword=arthur+miller+a+view+from+the+bridge+pdf
    • http://files.4mustain.com/uploads/1/3/1/4/131407823/kajitotabepu_wazenore_zinip.pdf
    • http://files.nextlane360.com/uploads/1/3/1/1/131163736/4705508.pdf
    • http://files.batterseamirroremporium.co.uk/uploads/1/3/0/8/130874329/mufepuzoti_wibevebeki_doboforib.pdf
    • http://files.juliewiegand.com/uploads/1/3/1/4/131453480/dd1b72145be5fa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/8584587797.pdf
    • https://cdn.shopify.com/s/files/1/0431/8281/7441/files/ashrae_handbook_hvac_systems_and_equipment_2020.pdf
    • https://cdn.shopify.com/s/files/1/0431/2186/8960/files/jojolijakomit.pdf
    • https://cdn.shopify.com/s/files/1/0430/4008/0023/files/1996_suburu_outback.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xutuxajaz.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/robavojuwuzaz.pdf
    • https://cdn.shopify.com/s/files/1/0432/2007/4663/files/64580430302.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/60075808946.pdf
    • https://cdn.shopify.com/s/files/1/0431/4352/8609/files/74255701700.pdf
    • https://cdn.shopify.com/s/files/1/0432/4383/1464/files/84500555212.pdf
    • https://cdn.shopify.com/s/files/1/0429/9980/8149/files/33438707970.pdf
    • https://cdn.shopify.com/s/files/1/0431/5735/6710/files/58312456675.pdf
    • https://cdn.shopify.com/s/files/1/0432/2338/4219/files/womasilevaxanezexeran.pdf
    • https://cdn.shopify.com/s/files/1/0428/1643/8438/files/tusip.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_off0000ed57.bin
790686f3c99cb342cb37344692042d51166179626a0f1324beb93e351fd9037c
pdf-font-stream PDF embedded font (sfnt) at offset 0xED57 5336 bytes
font_01_sfnt_off0000ff92.bin
2dee1b2011e96668b9220b1b972434ab674ad421090c0d9dbeb7a9ad3c95ae6a
pdf-font-stream PDF embedded font (sfnt) at offset 0xFF92 10436 bytes
font_02_sfnt_off00012343.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378
pdf-font-stream PDF embedded font (sfnt) at offset 0x12343 4324 bytes