Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d5c0821bd2b5561…

MALICIOUS

PDF

64.7 KB Created: 2020-09-17 09:23:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e5cd9c200ed75df0bc1e7ed39840906a SHA-1: 1eea4285dabd6f8c4dad7e09dd0fe37b7f59df38 SHA-256: 9d5c0821bd2b556188a88180a3fe4f48850e7444450d9d019fa7c7281b56f8d3
162 Risk Score

Malware Insights

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

The PDF contains a lure to download 'command prompt hacks' and includes a link to a known malicious redirector. The document also contains a mass external PDF link farm, with many links pointing to Shopify domains, likely for SEO manipulation. The presence of a 'command execution lure' suggests the document intends to trick the user into running commands, possibly after clicking the malicious link.

Heuristics 4

  • 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.
  • Clipboard command execution lure high SE_CLIPBOARD_COMMAND_LURE
    Document tells the user to copy or paste clipboard content into Run, PowerShell, cmd, or another shell-like execution context
  • 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.me/wix?keyword=command+prompt+hacks+download
    • https://cdn.shopify.com/s/files/1/0428/5821/7631/files/72085855535.pdf
    • https://cdn.shopify.com/s/files/1/0432/6129/6790/files/jamitezigajubezalu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9273/8201/files/jalojufosopes.pdf
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/80005525380.pdf
    • https://cdn.shopify.com/s/files/1/0432/4874/6651/files/holistic_thinking.pdf
    • https://14c32176-1c4d-4475-a652-c470c307b545.filesusr.com/ugd/2d1648_8e469a10031a4ebfba2742908e9e324c.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/5912/5160/files/71703585266.pdf
    • https://cdn.shopify.com/s/files/1/0433/9230/3254/files/25666883593.pdf
    • https://cdn.shopify.com/s/files/1/0430/8582/4164/files/bunebawete.pdf
    • https://cdn.shopify.com/s/files/1/0427/4146/5244/files/panotupid.pdf
    • https://cdn.shopify.com/s/files/1/0438/1717/3149/files/game_killer_pro_apk_no_root.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_off0000c069.bin
27aa881dc0d0a77bb3f1d6992a8a867b33edc8985fe035e32207a896d5e5f961		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC069 5376 bytes
font_01_sfnt_off0000d293.bin
06d7cfe9f44313fd84d685878a900b04ef37e56ab185cfe2ab24d15bc1541643		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD293 10352 bytes

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