Malicious PDF — malware analysis report

Static analysis result for SHA-256 3d1205a940d5ff84…

MALICIOUS

PDF

78.2 KB Created: 2020-08-09 09:09:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 46909b1956f9779079015f2a35542d09 SHA-1: a2bc78898c0c844ca9879299a44139ed81fe6963 SHA-256: 3d1205a940d5ff84e7ffd4036c2f74cc5f04fe82413bd9b4f9a270504cb5e65f
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=karl+marx+18+brumaire+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many of which point to Shopify domains. The document body, though heavily obfuscated, contains the same malicious URL. This suggests a coordinated effort to lure users to a malicious site.

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=karl+marx+18+brumaire+pdf
    • http://files.mrsbsmusicclass.com/uploads/1/3/0/9/130969965/sagamaxusinidureri.pdf
    • http://gokevu.chrisgriffithdesigns.com/uploads/1/3/1/3/131383664/96fd0.pdf
    • http://files.fussfreefunerals.com/uploads/1/3/1/4/131437755/6482314.pdf
    • https://cdn.shopify.com/s/files/1/0435/8848/5288/files/eros_ny_tstv.pdf
    • https://cdn.shopify.com/s/files/1/0430/4430/7098/files/javawasawunimafeneperu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1121/0398/files/87906048562.pdf
    • https://cdn.shopify.com/s/files/1/0429/5937/2439/files/30697155944.pdf
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/44779913769.pdf
    • https://cdn.shopify.com/s/files/1/0434/3080/5671/files/xekibexelekifeki.pdf
    • https://cdn.shopify.com/s/files/1/0432/0978/5512/files/2_chainz_crack_mp3_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/3942/4669/files/fotexetix.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zotogobujadafozafinuv.pdf
    • https://cdn.shopify.com/s/files/1/0438/2513/5776/files/dexapipifixom.pdf
    • https://cdn.shopify.com/s/files/1/0435/3032/2071/files/zurobojomesonopovijulupex.pdf
    • https://cdn.shopify.com/s/files/1/0428/1437/4047/files/29085841893.pdf
    • https://cdn.shopify.com/s/files/1/0435/3484/4059/files/rutosomasukula.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_off0000f3aa.bin
66d0bc18d5e1cd330e7d00824799c88ad3d5477a146160848f414237c18050aa		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3AA 5432 bytes
font_01_sfnt_off00010616.bin
09d74aee6d4c423b9c377e0a7dae9f60d87c5de468ca40436cbafa1b658b6d3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10616 11184 bytes

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