Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7604b8e724b6e76…

MALICIOUS

PDF

49.7 KB Created: 2020-08-14 13:53:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c2bdc26ca28b68a5afd51ec6633281c SHA-1: 3eba9ebefc8e065b0380537e440cb0142bd176af SHA-256: d7604b8e724b6e76f1593d31012219a1ef47b73b87ceb304ef7566e019f4b921
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with one heuristic specifically identifying a link to a known malicious redirector at 'ttraff.com'. The document body, though heavily obfuscated, contains text related to 'tourist information' and the malicious URL, suggesting a lure. The presence of a large number of external PDF links also indicates a link farm, likely for SEO poisoning or to distribute malicious content.

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=tourist+information+airlie+beach+queensland
    • http://files.originalartworkdamienvenditti.com/uploads/1/3/1/3/131378993/wonokaro.pdf
    • http://files.speakingofveganfood.com/uploads/1/3/1/3/131398605/4204795.pdf
    • http://files.widhalmcustomhomes.com/uploads/1/3/0/9/130969874/vuwerodixob-velexageberivi-tefagubin-selotazetuze.pdf
    • http://files.vettefinderjim.com/uploads/1/3/1/6/131636946/lawupumijeli.pdf
    • https://cdn.shopify.com/s/files/1/0427/5725/9420/files/14165884613.pdf
    • https://cdn.shopify.com/s/files/1/0429/4616/6943/files/tactics_for_toeic.pdf
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/statistical_rethinking_solutions_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/kigir.pdf
    • https://cdn.shopify.com/s/files/1/0440/1777/8838/files/kavezavipe.pdf
    • https://cdn.shopify.com/s/files/1/0436/9969/9866/files/bibukogi.pdf
    • https://cdn.shopify.com/s/files/1/0447/3847/8229/files/arsenic_trioxide_msds.pdf
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/pizuvisimipumabijaxo.pdf
    • https://cdn.shopify.com/s/files/1/0436/9501/4056/files/nasabufeku.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5069/files/fevasipirilemuxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/7030/7995/files/fiputeralufox.pdf
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/pemeriksaan_direct_coombs_test.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_off00008362.bin
3dd870b570dbb87ffcfe6846c47956fbdf090d856f4c8c8be17d4c683ea92722		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8362 5476 bytes
font_01_sfnt_off000095c7.bin
a80223e5c9d1a35105079d4119ddeef35f0458c56b0ccd8a9b89479ae75907f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x95C7 10788 bytes

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