Malicious PDF — malware analysis report

Static analysis result for SHA-256 773d14ba42cdf8b0…

MALICIOUS

PDF

47.9 KB Created: 2020-08-09 13:38:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7036612caefdef9248e04e690a4ef6bd SHA-1: f186970f2868c15a304be3fc7a01f0af7ef24e22 SHA-256: 773d14ba42cdf8b05a06ee0cb9871f94934bc57f3e2bb893e051162f567fdfd5
120 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical heuristic firing for a malicious redirector. The embedded URL points to a redirector that likely leads to further malicious content or malware. The document body, though heavily obfuscated, contains the URL that triggered the malicious redirector heuristic, suggesting a lure to click on the link for academic 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.cc/pify?keyword=teleological+ethics+vs+deontological+ethics+pdf
    • http://files.kaufmanautogroup.com/uploads/1/3/0/7/130740012/9538957.pdf
    • http://files.blog.timferriss.com/uploads/1/3/1/4/131454521/e985f483789a.pdf
    • http://xubawosu.anitainternational.com/uploads/1/3/1/6/131607131/mezil_basazamumak.pdf
    • http://guvupo.geauxwarhawks.com/uploads/1/3/0/8/130874276/8560064.pdf
    • http://files.eldoradocartersville.com/uploads/1/3/0/8/130813841/ridupot.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49726552648.pdf
    • https://cdn.shopify.com/s/files/1/0433/0956/4064/files/vmware_14_key.pdf
    • https://cdn.shopify.com/s/files/1/0430/5967/5293/files/21108990059.pdf
    • https://cdn.shopify.com/s/files/1/0439/0522/0776/files/fibras_textiles_naturales.pdf
    • https://cdn.shopify.com/s/files/1/0437/1172/5723/files/43528823222.pdf
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/paxodabewodewupudebival.pdf
    • https://cdn.shopify.com/s/files/1/0432/5015/5688/files/kotelafiraxugo.pdf
    • https://cdn.shopify.com/s/files/1/0430/0262/6202/files/33592709672.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/42280058325.pdf
    • https://cdn.shopify.com/s/files/1/0431/7731/2405/files/tesiv.pdf
    • https://cdn.shopify.com/s/files/1/0428/3963/8179/files/99661843890.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/90244858787.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_off00007b3d.bin
7465f906e5a45d3b7295e532cd225edc12fd3cf8c59d60d8cc8226ce9a961bc5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B3D 5332 bytes
font_01_sfnt_off00008d6c.bin
cf5c94b625849e4bdc61b5e71118445e438f3a147284fcdf9b5c14ec77f7b94f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6C 10872 bytes

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