Malicious PDF — malware analysis report

Static analysis result for SHA-256 e244c27372b7e7b2…

MALICIOUS

PDF

37.1 KB Created: 2020-08-30 06:51:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2b00027805378f0434b373e177d83efd SHA-1: ff1ec3c6257bf8a1ee4d0207a58b568ef8db5d3c SHA-256: e244c27372b7e7b2a70c94c1b34d5c926cc670c473371f80969e18711f876934
130 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.ru/wix?keyword=jason+aldean+ringtones'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The presence of a 'download button' lure further supports the malicious intent. The document body, though heavily corrupted, contains the malicious URL and references to 'Jason Aldean ringtones', likely a lure to entice clicks.

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.ru/wix?keyword=jason+aldean+ringtones
    • https://cdn.shopify.com/s/files/1/0471/0642/4982/files/test_de_prolifration_cellulaire.pdf
    • https://cdn.shopify.com/s/files/1/0434/4319/1969/files/gividozamifik.pdf
    • https://cdn.shopify.com/s/files/1/0435/0217/4374/files/abide_in_christ_by_andrew_murray.pdf
    • https://cdn.shopify.com/s/files/1/0438/8611/7019/files/toseruxujolalijuromotozif.pdf
    • https://cdn.shopify.com/s/files/1/0431/2799/6565/files/dilow.pdf
    • https://cdn.shopify.com/s/files/1/0462/9148/4832/files/excel_checkbook_template.pdf
    • https://cdn.shopify.com/s/files/1/0428/5192/6183/files/datep.pdf
    • https://cdn.shopify.com/s/files/1/0434/1936/9628/files/the_quick_and_the_dead_movie_1963.pdf
    • https://cdn.shopify.com/s/files/1/0432/1991/0811/files/87214075988.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/94587843824.pdf
    • https://static.usrfiles.com/ugd/6df952_66e0f02da5474d10a3157843e871cd6b.pdf
    • https://static.usrfiles.com/ugd/b8c837_44cef91b3e7e4b7b847f258b7b565b86.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b9369de28884babb502e35e5b2e1cb9.pdf
    • https://static.usrfiles.com/ugd/6908d7_880d0ab1fc3f45b28fcd616f6fae43a2.pdf
    • https://static.usrfiles.com/ugd/b8c837_c2787976b83f4da9942292be51d2a524.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_off000052b2.bin
658f703418798123ace56925f700f6a50434ee056a0c5563a1196394f57a3948
pdf-font-stream PDF embedded font (sfnt) at offset 0x52B2 4984 bytes
font_01_sfnt_off000063a7.bin
9cbfc635e65a41357c79bcd2b63284ef51d2da2883bfdc774a40bb362cc3508d
pdf-font-stream PDF embedded font (sfnt) at offset 0x63A7 10684 bytes