Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e18b3f5b6ed221a…

MALICIOUS

PDF

70.2 KB Created: 2020-08-05 04:37:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 409131fd2c0211cee41dc3e627076b09 SHA-1: 60a3cb845e7162d991ec51bb15a867d03300f506 SHA-256: 9e18b3f5b6ed221a4dac820105cda16e6764cace1fde314935b010fc528a51a0
120 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one heuristic specifically identifying a malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. This suggests a phishing attempt where the user is tricked into downloading a malicious file or visiting a compromised site.

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=12+cranial+nerves+and+functions+pdf
    • http://files.chapsrugby.com/uploads/1/3/0/7/130739793/donoge-xezakuvigenim-vibezugexajuto.pdf
    • http://files.elizabethsboutiques.com/uploads/1/3/1/1/131164431/2732552.pdf
    • http://files.underthehill.com/uploads/1/3/0/9/130969301/a9d5fefbbc5b1.pdf
    • http://files.destined2wed.voyagerwebsites.com/uploads/1/3/1/0/131070895/gixerunomixo-foseg-sozipe-figoveliga.pdf
    • https://cdn.shopify.com/s/files/1/0430/6511/4775/files/fogisexudenojuzipes.pdf
    • https://cdn.shopify.com/s/files/1/0439/4031/5294/files/28377232711.pdf
    • https://cdn.shopify.com/s/files/1/0439/0476/2011/files/73338201341.pdf
    • https://cdn.shopify.com/s/files/1/0432/2538/3074/files/wifevezolexenurinuwufuk.pdf
    • https://cdn.shopify.com/s/files/1/0432/7519/0422/files/28599480537.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/doluberabagora.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/43742551217.pdf
    • https://cdn.shopify.com/s/files/1/0428/1604/5222/files/zadilufusu.pdf
    • https://cdn.shopify.com/s/files/1/0431/2068/9306/files/rajijunumuje.pdf
    • https://cdn.shopify.com/s/files/1/0431/0165/1105/files/72451108928.pdf
    • https://cdn.shopify.com/s/files/1/0437/9269/5458/files/83071943281.pdf
    • https://cdn.shopify.com/s/files/1/0435/4323/2661/files/fefud.pdf
    • https://cdn.shopify.com/s/files/1/0432/6768/6558/files/96813382244.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_off0000d721.bin
846899e357b47188a671f13cea40618852427c85de678affe4acf78f0b9736fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD721 5300 bytes
font_01_sfnt_off0000e944.bin
d8c2ca671d3167c2279a306d9d1f2d01439de9836716513af1dd5aeb0e61e4ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE944 10048 bytes

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