Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1daa41fb09ba6af…

MALICIOUS

PDF

49.7 KB Created: 2020-08-21 12:18:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 648bc47aa19f2317e4d7b29a35b52468 SHA-1: 31402d933f63fae08e6b4aa1a106d981216a0400 SHA-256: d1daa41fb09ba6af6ab9f0059d271c17545713a1d835f7f8f74a02e21d345b6b
120 Risk Score

Malware Insights

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

The PDF contains a significant number of embedded links, with one heuristic identifying it as a PDF SEO link farm. Another heuristic flags a link to a known malicious redirector. The document body is heavily obfuscated and contains a reference to the redirector URL, suggesting an attempt to lure users to malicious content through a deceptive link farm.

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.cc/pify?keyword=kangol+flat+cap+size+guide
    • http://laviki.billingspattern.com/uploads/1/3/0/7/130775677/2398549.pdf
    • http://files.safeumich.com/uploads/1/3/1/3/131382134/gufuvuwamod.pdf
    • http://tukiku.dickieskinzsc.com/uploads/1/3/1/8/131871674/vulakawijuviniv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/11147191401.pdf
    • https://cdn.shopify.com/s/files/1/0432/7096/3350/files/56553399353.pdf
    • https://cdn.shopify.com/s/files/1/0430/6308/3170/files/botokevuraxivimixe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7370/7925/files/manualidades_faciles_para_nios_autistas.pdf
    • https://cdn.shopify.com/s/files/1/0460/1289/1297/files/modukilad.pdf
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/diferencia_entre_catabolismo_y_anabolismo.pdf
    • https://cdn.shopify.com/s/files/1/0437/7811/3697/files/algerie_ferries_programme_2020.pdf
    • https://cdn.shopify.com/s/files/1/0440/6624/2710/files/delifemozal.pdf
    • https://cdn.shopify.com/s/files/1/0431/8868/2915/files/acrobat_dc_pro_offline_installer.pdf
    • https://cdn.shopify.com/s/files/1/0432/7669/7760/files/b_tech_full_form.pdf
    • https://cdn.shopify.com/s/files/1/0431/0364/9953/files/naruto_anime_mod.pdf
    • https://cdn.shopify.com/s/files/1/0431/9064/8994/files/16296194255.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_off000074eb.bin
095c0ea51629821933467720ac57c2b6e00dd30f86fed188936a9d4a6310bcc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74EB 5128 bytes
font_01_sfnt_off0000867f.bin
aebba0e8ed73bcdb406fdc68e41ca9a47fb47c55b45789885df41edd17134ca5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x867F 11048 bytes
font_02_sfnt_off0000abc1.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xABC1 4324 bytes

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