Malicious PDF — malware analysis report

Static analysis result for SHA-256 bdab722054176327…

MALICIOUS

PDF

41.4 KB Created: 2020-08-29 12:01:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72f5ca8dca2ce15d35ba381557008e0b SHA-1: bc5345e7bc5ac50a798753183b89495476001080 SHA-256: bdab7220541763279568b260e1b3c3f73060ef84d555fe015758374abd474a9c
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing indicating a malicious redirector link to 'ttraff.ru'. Another critical heuristic identified a PDF link farm, with the primary link pointing to a Shopify domain. The document body contains garbled text but includes the malicious URL, suggesting a lure to external content. The primary attack pattern involves redirecting users to malicious sites via embedded links.

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.ru/wix?keyword=telangana+bathukamma+songs+lyrics
    • https://cdn.shopify.com/s/files/1/0432/9373/7110/files/62685830067.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/janipa.pdf
    • https://cdn.shopify.com/s/files/1/0429/2686/6599/files/telugu_christmas_songs_for_dance_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/4023/3880/files/apa_manual_6th_edition_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/final_cut_pro_x_movie_trailer_templates.pdf
    • https://cdn.shopify.com/s/files/1/0431/9631/7845/files/autodwg_dwg_to_converter_pro_4._31_crack.pdf
    • https://cdn.shopify.com/s/files/1/0431/2137/7434/files/bcbsm_member_appeal_form.pdf
    • https://static.usrfiles.com/ugd/b8c837_44cde49ef32640d2be1d6a7a6906f519.pdf
    • https://static.usrfiles.com/ugd/c836c3_8776d2dde91c47059fe6541c4187a172.pdf
    • https://static.usrfiles.com/ugd/b8c837_e6d1a1a281cd4e11a0b0ea853dca1c83.pdf
    • https://static.usrfiles.com/ugd/b8c837_79c122cbb9e543bfa8fee33298bd20e3.pdf
    • https://cdn.shopify.com/s/files/1/0433/3980/8922/files/kesotikasafoz.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/89514724814.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_off000053c5.bin
adf68db7bddea3056b84398035f672bf37c9cb30a3746036f2749949fc808991		 pdf-font-stream PDF embedded font (sfnt) at offset 0x53C5 5468 bytes
font_01_sfnt_off00006634.bin
d9b88d4f27812d016d610e7a87535790b676e52079e096ad42e8e303e3a47055		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6634 4660 bytes
font_02_sfnt_off0000773c.bin
975896fe602e153b1e7fd10afd093761574d7faa96fc5a7b67d46adb93cb6566		 pdf-font-stream PDF embedded font (sfnt) at offset 0x773C 9756 bytes

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