Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfe10767fa16d4e1…

MALICIOUS

PDF

49.3 KB Created: 2020-08-19 00:52:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9f20303c1187af7a9c298088c6e6f84 SHA-1: 4c3395fde49e05cbccda8764d0db27752437f891 SHA-256: cfe10767fa16d4e17c6110bac0e33216eacf3f5a4f50396d32b38f78db874ee0
162 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many pointing to Shopify domains hosting other PDFs, which is indicative of a link farm for SEO manipulation or to obscure malicious redirects. One critical heuristic identified a direct link to a known malicious redirector at 'https://ttraff.com/pify?keyword=fluoroscopic+guided+lumbar+puncture'. Additionally, a heuristic flagged a 'Clipboard command execution lure', suggesting the document instructs the user to copy and paste commands into a shell, likely to download and execute further payloads. The presence of these elements strongly suggests a malicious intent to redirect users to harmful sites or trick them into executing commands.

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.com/pify?keyword=fluoroscopic+guided+lumbar+puncture
    • http://files.lockmangenetics.com/uploads/1/3/0/7/130775383/nizejab.pdf
    • http://files.highclasswhoopass.com/uploads/1/3/0/7/130740551/xofadefobeb_kolas_jegesurejag_denanunakuperav.pdf
    • http://gebivamev.elizabethheppenheimer.com/uploads/1/3/0/7/130740440/c0a9e1c8a66a06.pdf
    • http://pevus.hipnotions.com/uploads/1/3/0/8/130873782/8138310.pdf
    • https://cdn.shopify.com/s/files/1/0441/3207/3624/files/sri_devi_bhagavatam_in_telugu_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0427/9861/2636/files/kibubuxokufi.pdf
    • https://cdn.shopify.com/s/files/1/0428/0107/0247/files/86204462475.pdf
    • https://cdn.shopify.com/s/files/1/0431/4713/3088/files/kekifimaxurutuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/8530/7808/files/56951627856.pdf
    • https://cdn.shopify.com/s/files/1/0433/4164/3928/files/76175611811.pdf
    • https://cdn.shopify.com/s/files/1/0434/6891/4838/files/68482178528.pdf
    • https://cdn.shopify.com/s/files/1/0434/6707/9830/files/mixed_in_key_torrent.pdf
    • https://cdn.shopify.com/s/files/1/0448/3593/0273/files/bourton_on_the_water_map.pdf
    • https://cdn.shopify.com/s/files/1/0437/9344/9122/files/55683499068.pdf
    • https://cdn.shopify.com/s/files/1/0431/1996/8417/files/notirob.pdf
    • https://cdn.shopify.com/s/files/1/0439/1455/9656/files/33236385839.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007581.bin
be85b8ff0a16371f821f9fb5596f0909748cccd6c790c345032e165edddb0b53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 5368 bytes
font_01_sfnt_off0000879f.bin
f6d91fa02911f89412b1e86fa1895dca0a05b4cfcb1a38a27cd16e973e1daee9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x879F 10160 bytes
font_02_sfnt_off0000aa50.bin
1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA50 4324 bytes

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