Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ec15d63183a18ff…

MALICIOUS

PDF

45.7 KB Created: 2020-08-02 01:58:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c04501555e2e17be1ce9063e4e3e3a2 SHA-1: 3dde3bba9a3486e923800c25cfcea4ebf779f93d SHA-256: 7ec15d63183a18ffbff504f7c99daa960a3f766752ede1504b6a67d88b0e327e
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains text fragments suggesting a lure for 'Iris dataset download'. The presence of a link farm heuristic further indicates a malicious intent to redirect users. The primary malicious IOC is the redirector URL.

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=iris+dataset+download
    • http://files.summersptg.com/uploads/1/3/0/9/130969448/wegaxal-xakawo-xadewonukin.pdf
    • http://files.cosmicrockbooklets.com/uploads/1/3/1/4/131410662/fesofuvilidedas.pdf
    • http://files.ufcooperatingteacherssupport.com/uploads/1/3/0/8/130874240/gopedoriwati_xabed_lutijom.pdf
    • https://cdn.shopify.com/s/files/1/0434/1540/4695/files/58590383539.pdf
    • https://cdn.shopify.com/s/files/1/0432/7751/6955/files/38277846702.pdf
    • https://cdn.shopify.com/s/files/1/0437/4937/6161/files/kuvatatogetononojagu.pdf
    • https://cdn.shopify.com/s/files/1/0432/6490/1284/files/35268715158.pdf
    • https://cdn.shopify.com/s/files/1/0431/2901/2381/files/dish_tv_channel_guide.pdf
    • https://cdn.shopify.com/s/files/1/0430/9162/4097/files/4577470560.pdf
    • https://cdn.shopify.com/s/files/1/0433/4321/6789/files/bufazumobuxubagetofijad.pdf
    • https://cdn.shopify.com/s/files/1/0427/7148/0742/files/merakelizafuluwapejos.pdf
    • https://cdn.shopify.com/s/files/1/0434/1107/9317/files/vazofonuwunagewozat.pdf
    • https://cdn.shopify.com/s/files/1/0436/5352/9753/files/podilabazevimeni.pdf
    • https://cdn.shopify.com/s/files/1/0429/9161/6153/files/5485972459.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_off00006a0b.bin
f8facb2c345990e83ac69542f4a730e237f358c268983ed7446b52b20fbc4d26		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A0B 4848 bytes
font_01_sfnt_off00007aa4.bin
15da0999934be232fde6abd3bd3c785820b258ae22974c266c57b376d9eb0336		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AA4 15148 bytes

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