Malicious PDF — malware analysis report

Static analysis result for SHA-256 418479b84ba16457…

MALICIOUS

PDF

45.4 KB Created: 2020-09-10 14:16:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 908734e6b4e1049db72a401dba678293 SHA-1: 3484baa97ec03481c48d9465e393724374c8bc33 SHA-256: 418479b84ba16457d524ab20ec622b2ca7daf18284f28ddc869fa21ba5d8f121
128 Risk Score

Malware Insights

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

The PDF contains a lure for a movie download, which is a common social engineering tactic. It embeds a link to a redirector, 'https://ttraff.link/wix?keyword=bombay+tamil+full+movie++tamilrockers', which is flagged as malicious. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, some of which are hosted on Shopify. The presence of a visual download button further supports the social engineering pretext.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.link/wix?keyword=bombay+tamil+full+movie++tamilrockers
    • http://files.gulnurozdaglar.com/uploads/1/3/2/3/132302913/38e83.pdf
    • https://cdn.shopify.com/s/files/1/0438/9139/2664/files/athlean_x_workout_routine.pdf
    • https://cdn.shopify.com/s/files/1/0432/7522/3206/files/no_man_s_sky_korvax.pdf
    • https://cdn.shopify.com/s/files/1/0430/0944/1953/files/57031086102.pdf
    • https://static.usrfiles.com/ugd/d90490_4cdf7a78a0894522999484ace6b69ef3.pdf
    • https://static.usrfiles.com/ugd/b8c837_cbb400a36ca84a078d6a91bcc7b9d5d6.pdf
    • https://static.usrfiles.com/ugd/11276f_9d9c764d00984faaa13259eb7f303ed2.pdf
    • https://static.usrfiles.com/ugd/0a052f_ceb7aea4b97e455b9eee9954cc8370fc.pdf
    • https://cdn.shopify.com/s/files/1/0432/4891/0498/files/wakaravam.pdf
    • https://cdn.shopify.com/s/files/1/0430/5531/7149/files/56476524612.pdf
    • https://cdn.shopify.com/s/files/1/0429/9010/8833/files/90620743093.pdf
    • https://cdn.shopify.com/s/files/1/0437/4354/3450/files/muzijimosinutubedaladum.pdf
    • https://cdn.shopify.com/s/files/1/0433/0032/3478/files/c_programming_with_arduino_warwick.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_off0000735d.bin
e81c9535cc57501ad698bdde652e764703b776c1a37b5b94a3fc5b053652ee53		 pdf-font-stream PDF embedded font (sfnt) at offset 0x735D 5440 bytes
font_01_sfnt_off000085dd.bin
72ef89422c658a976bda897ab873d6604e0b860d84ef68ddcea555f4caa75677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85DD 10252 bytes

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