Malicious PDF — malware analysis report

Static analysis result for SHA-256 e602d2b05a9502f4…

MALICIOUS

PDF

110.7 KB Created: 2020-08-09 03:46:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7589dbbc51ed2c4389077b578b69c588 SHA-1: 5518e7eccb849f14fde7f28a86eaf33b159b67fe SHA-256: e602d2b05a9502f4c6198b2c444e106dfed398c34023aabe35d400301a6cbf8d
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=din+iso+1302+english+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on Shopify. The document body, though heavily obfuscated, contains a reference to the same malicious URL. This suggests the primary intent is to lure the user to a compromised or 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.ru/pify?keyword=din+iso+1302+english+pdf
    • http://fufirosox.coloradomineralandfossilshows.com/uploads/1/3/1/0/131070590/6710511.pdf
    • http://files.livebalancegrow.com/uploads/1/3/0/7/130776619/fawijekibezi.pdf
    • http://files.monumentalworship.org/uploads/1/3/0/9/130969054/gopuxetep.pdf
    • http://wuvamete.theilounge.net/uploads/1/3/2/3/132302921/bf6c915d.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8104/files/1002225808.pdf
    • https://cdn.shopify.com/s/files/1/0429/4751/0435/files/turbina_savonius.pdf
    • https://cdn.shopify.com/s/files/1/0428/2236/9446/files/96466816016.pdf
    • https://cdn.shopify.com/s/files/1/0436/9996/2024/files/nipotame.pdf
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/pebixozaloguvajubiwusati.pdf
    • https://cdn.shopify.com/s/files/1/0429/9200/9365/files/kajobe.pdf
    • https://cdn.shopify.com/s/files/1/0435/3412/3160/files/meten.pdf
    • https://cdn.shopify.com/s/files/1/0435/2396/5079/files/kenatirarati.pdf
    • https://cdn.shopify.com/s/files/1/0443/8504/2598/files/answer_key_rscit_2020_8_september.pdf
    • https://cdn.shopify.com/s/files/1/0436/8809/9993/files/35361232861.pdf
    • https://cdn.shopify.com/s/files/1/0434/6278/7237/files/48013415303.pdf
    • https://cdn.shopify.com/s/files/1/0440/3258/9989/files/fanotim.pdf
    • https://cdn.shopify.com/s/files/1/0437/2863/4010/files/zapilapadogulafusod.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/
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/f

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000162d1.bin
8b511c58d3234fa9e6ad089c95d1dc2bd0b31f87be7a4d6a8849fccc4da5c7d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x162D1 2912 bytes
font_01_sfnt_off00016d36.bin
abd01d0a9bba4b9491e908648e8686a21bfce0c79af97227b59f98ab8080aebb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16D36 5484 bytes
font_02_sfnt_off00017fb9.bin
7d1c8b59099df247382fed64b9d114b0ce3b7f5870c1865e6060ad415161b800		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17FB9 1188 bytes
font_03_sfnt_off00018690.bin
dbbfd12808029f507a0fd51000a2553b359d640e34b27ee87e16a63bb09222cc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18690 11184 bytes

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