Malicious PDF — malware analysis report

Static analysis result for SHA-256 a14087cfc152a588…

MALICIOUS

PDF

78.1 KB Created: 2020-08-23 03:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f36a9a34b32b7d2579016bbf2b5c86c SHA-1: 34344a23696be9e784ff38818801b5eddfa53a92 SHA-256: a14087cfc152a5887c1dc9a00929fa9ccb2c7403f6e76d2d8ef0f477e82be8fb
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The file also exhibits characteristics of a link farm, with numerous embedded links, many pointing to Shopify domains, likely to improve SEO and disguise malicious intent. The primary malicious URL is reconstructed from the document body and the heuristic.

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=gastric+cancer+guideline+japan+2018
    • http://xodulesi.onewintrynightollas.com/uploads/1/3/0/9/130969754/e2c0fcdd4b.pdf
    • http://simavi.levelnegotiations.com/uploads/1/3/0/7/130775209/lexefipezodaramezak.pdf
    • https://cdn.shopify.com/s/files/1/0430/8815/0690/files/24874793272.pdf
    • https://cdn.shopify.com/s/files/1/0429/2254/1209/files/38472005832.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/nupupi.pdf
    • https://cdn.shopify.com/s/files/1/0431/1102/2756/files/aha_guidelines_for_blood_pressure_management.pdf
    • https://cdn.shopify.com/s/files/1/0430/5515/3303/files/wopajifeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/18396470220.pdf
    • https://cdn.shopify.com/s/files/1/0434/0413/2508/files/rorosotesuvapapuzorimubu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4345/4102/files/wolagaro.pdf
    • https://cdn.shopify.com/s/files/1/0437/2873/2314/files/81287309163.pdf
    • https://cdn.shopify.com/s/files/1/0436/1653/4685/files/27507174366.pdf
    • https://cdn.shopify.com/s/files/1/0431/9887/3763/files/xenifesepudefaxudawa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9993/1295/files/ruvebumuketovovizive.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/
    • https://cdn.shopify.com/s/files/1/0430/8815/0690

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e726.bin
18f3dad90f0b8a749557125039a501166b605b51d41492c5c2dfd7e147c8bf53		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE726 2952 bytes
font_01_sfnt_off0000f1b5.bin
c58c32d35e29848b944c10d4469e5fa8aea8e499453b8379d09837c8a7c795a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1B5 5868 bytes
font_02_sfnt_off000105c3.bin
2a4eec94034632195b214da978007ff155595b7a9369b19d993239f1178f24ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0x105C3 10748 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.