Malicious PDF — malware analysis report

Static analysis result for SHA-256 a76d0d3c66766c86…

MALICIOUS

PDF

39.2 KB Created: 2020-08-18 21:27:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7463f255cccfe2f143f322b1c5a5548 SHA-1: a8a399630e23e1e59c2f2ec91ce6ba62e04fa422 SHA-256: a76d0d3c66766c86ab33edc53072d6d95d254b1c20417bc19b566a03cbc9b661
160 Risk Score

Malware Insights

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

The PDF contains a lure for a free game download, which redirects to a malicious URL (ttraff.cc). This URL is part of a link farm designed to manipulate search engine results, and it also hosts a remote support tool lure. The document body and embedded links suggest a phishing or scam attempt to trick users into downloading potentially malicious content.

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.
  • Remote-support tool lure high SE_REMOTE_SUPPORT_LURE
    Document instructs the user to install, open, or connect with a remote-support tool such as AnyDesk, TeamViewer, Quick Assist, or ScreenConnect — high-risk in an unsolicited document
  • 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=sea+of+thieves+pc+game+free
    • http://files.clouds4kidz.com/uploads/1/3/0/7/130776619/sexuninozevel-kudinol-rolim-josonimivelara.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/metro_warszawa_mapa.pdf
    • https://cdn.shopify.com/s/files/1/0433/5996/1239/files/nubosadoxawi.pdf
    • https://cdn.shopify.com/s/files/1/0434/4663/2614/files/archinteriors_33.pdf
    • https://cdn.shopify.com/s/files/1/0430/3031/5159/files/nenoxosaminedezesede.pdf
    • https://cdn.shopify.com/s/files/1/0439/2602/8456/files/pig_latin_to_english_translator.pdf
    • https://cdn.shopify.com/s/files/1/0428/2312/3100/files/kozeb.pdf
    • https://cdn.shopify.com/s/files/1/0431/0653/3527/files/bunuvafepuzudowizux.pdf
    • https://cdn.shopify.com/s/files/1/0432/3550/8392/files/54901788529.pdf
    • https://cdn.shopify.com/s/files/1/0434/1134/1479/files/jefuzegokavogojetesab.pdf
    • https://cdn.shopify.com/s/files/1/0430/5358/0439/files/alabaster_girl_free.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_off00005b91.bin
a60f456373441a0d66e4900032ad7de785f72fc2b3feddd4666b17ec7e26bb25		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B91 5560 bytes
font_01_sfnt_off00006e62.bin
28c1164e4c97a3ebcdaa89873209fd88de99a6613f312d99e76f7747952fd5be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E62 9984 bytes

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