Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1a742f36369bfbc…

MALICIOUS

PDF

51.0 KB Created: 2020-09-17 01:42:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 60997be9cc85dec8c0b98aa08147f2fe SHA-1: 6b31dd92189756853a60b249715cc125f69f1451 SHA-256: c1a742f36369bfbcbdee73c890eaf133ea7cf18192ee009083ed598d143f9215
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, many of which point to Shopify-hosted PDF files. One of these links, https://ttraff.com/wix?keyword=1982+water+dog+2020, is identified as a malicious redirector. This suggests the document is part of a link farm or SEO poisoning campaign designed to lure users to malicious sites.

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/wix?keyword=1982+water+dog+2020
    • https://cdn.shopify.com/s/files/1/0436/4802/4741/files/samsung_android_phone_20000.pdf
    • https://cdn.shopify.com/s/files/1/0434/7009/4501/files/asbabun_nuzul.pdf
    • https://cdn.shopify.com/s/files/1/0461/3655/7736/files/ios_alamofire_file.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3944/files/zomisegilafovefudokuto.pdf
    • https://cdn.shopify.com/s/files/1/0438/1986/0125/files/dead_space_android_apk_uptodown.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0208/files/android_10_pixel_3_uk.pdf
    • https://cdn.shopify.com/s/files/1/0432/4058/7431/files/soft_cartoon_photoshop_action_free.pdf
    • https://cdn.shopify.com/s/files/1/0438/2579/1138/files/zevuxebolarowasifeza.pdf
    • https://cdn.shopify.com/s/files/1/0429/3292/8671/files/tujiradogejokika.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/29883534071.pdf
    • https://cdn.shopify.com/s/files/1/0433/3263/2730/files/cambridge_english_for_the_media_student_s_book.pdf
    • https://cdn.shopify.com/s/files/1/0430/9755/5098/files/sony_vegas_pro_portable_32_bit_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/5657/0274/files/78223804932.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/duliwoledemovaj.pdf
    • https://cdn.shopify.com/s/files/1/0431/5211/3820/files/baton_vape_manual.pdf
    • https://487e2efa-8b3a-4c19-b088-d7eab8f485e8.filesusr.com/ugd/69695d_b6efb9b044db4badba983f0987557f53.pdf?index=true
    • https://69139595-bf46-4b96-a60d-f2fb2ee2c9f5.filesusr.com/ugd/13ae68_2b06329fd47b485793ee1d853e6a4d2a.pdf?index=true
    • https://f756b49d-beb6-4b68-9cea-0d485e821f1b.filesusr.com/ugd/9ea91e_9d2cff9976964184b4169f83f993445c.pdf?index=true
    • 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_off0000769a.bin
67682d799d41369cf925f51470374807177e6b1aef1dcd1278deb1dbede4cc7c
pdf-font-stream PDF embedded font (sfnt) at offset 0x769A 5060 bytes
font_01_sfnt_off00008844.bin
c272242327195864952f82e6a6a595ce6b10bf6029cd9918d07406f46ca0b74f
pdf-font-stream PDF embedded font (sfnt) at offset 0x8844 5456 bytes
font_02_sfnt_off00009af4.bin
f7b236d512d2e02c821cdc6738fd2413230ba1235615a9afd043e8407f1c701e
pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF4 10660 bytes