Malicious PDF — malware analysis report

Static analysis result for SHA-256 50da5ad5c664b90f…

MALICIOUS

PDF

45.3 KB Created: 2020-07-28 12:11:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5652b84a23be137b05031119fbbf81c0 SHA-1: 8ec24ac9decb38780c1f70568e5540a359c022f8 SHA-256: 50da5ad5c664b90f87a530f4b25d5935eda29acbf581b78987db0c9532e3353b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links hosted on 'cdn.shopify.com'. The document body, though heavily obfuscated, appears to contain text related to 'A thousand years twilight mp4', suggesting a lure to entice users to click the malicious link.

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=a+thousand+years+twilight+mp4
    • http://files.isiswellnessbar.com/uploads/1/3/0/9/130969065/tukiv_rivegi_gizesivaful.pdf
    • http://files.nrgphotography.com/uploads/1/3/1/4/131483002/xatarexudivuso-mibijifepapez-rupeduj-vilozelolut.pdf
    • http://files.theafroronin.com/uploads/1/3/1/1/131164399/3f2aaa75.pdf
    • http://files.ifixmarbella.es/uploads/1/3/1/4/131483025/pabifaxukerotunonar.pdf
    • http://files.snowfedbuilders.co.nz/uploads/1/3/1/8/131856317/c173b.pdf
    • http://files.theafroronin.com/uploads/1
    • https://cdn.shopify.com/s/files/1/0429/0645/2131/files/97278693537.pdf
    • https://cdn.shopify.com/s/files/1/0429/1103/9655/files/93000524486.pdf
    • https://cdn.shopify.com/s/files/1/0429/8443/9971/files/3676102336.pdf
    • https://cdn.shopify.com/s/files/1/0429/2050/9596/files/samuwibokeb.pdf
    • https://cdn.shopify.com/s/files/1/0434/9755/4084/files/fufibujaxipagav.pdf
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/83369642441.pdf
    • https://cdn.shopify.com/s/files/1/0429/2424/5155/files/zakep.pdf
    • https://cdn.shopify.com/s/files/1/0432/4740/3168/files/mosidofujeb.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/93515438816.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/tijipilovige.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tobilefoseparavako.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_off000072a7.bin
d89a447b4082b3771a81c38f0b16b7c728e05a83455efc70e77e856615733f31		 pdf-font-stream PDF embedded font (sfnt) at offset 0x72A7 5524 bytes
font_01_sfnt_off0000855c.bin
90c2f359da36a56a778432647ec454d1b705226220c366ac22e5fe10d59626ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x855C 10100 bytes

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