Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e71760233bd295a…

MALICIOUS

PDF

56.6 KB Created: 2020-08-19 20:01:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 29be2ba05f447c8ca2f80075f15ffa8e SHA-1: 82c486265beea3795b2859385cccfe6fe7016514 SHA-256: 7e71760233bd295a5804ed0129a36e57a33717d9632dafe7b2ad97824ef9f03f
130 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure for 'latest marathi movies utorrent'. This link likely leads to a malicious download or further redirection. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm intended to obscure the malicious redirector.

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.cc/pify?keyword=latest+marathi+movies++utorrent
    • http://bavebup.lakecountyiltransition.com/uploads/1/3/1/4/131438539/9653562.pdf
    • http://godirum.nicolakim.com/uploads/1/3/0/9/130969130/5054688.pdf
    • http://jidapara.carlacargal.com/uploads/1/3/1/4/131483025/riduwolesimofu_zuwatoxini_gezus_dilabul.pdf
    • http://files.oslcaurora.org/uploads/1/3/1/6/131607131/baxenap.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/healthy_meal_planner.pdf
    • https://cdn.shopify.com/s/files/1/0438/6009/9222/files/53076154261.pdf
    • https://cdn.shopify.com/s/files/1/0451/2923/6634/files/33585895767.pdf
    • https://cdn.shopify.com/s/files/1/0430/0685/3269/files/bapotiwobupegixidowev.pdf
    • https://cdn.shopify.com/s/files/1/0433/6504/0286/files/kuramujigijizuxevubikuv.pdf
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/34231121627.pdf
    • https://cdn.shopify.com/s/files/1/0443/5014/4668/files/26979345396.pdf
    • https://cdn.shopify.com/s/files/1/0428/6208/4262/files/wekelanuzu.pdf
    • https://cdn.shopify.com/s/files/1/0431/7505/1421/files/mokatevebefawiwipima.pdf
    • https://cdn.shopify.com/s/files/1/0431/8448/8607/files/mean_median_mode_formula_chart.pdf
    • https://cdn.shopify.com/s/files/1/0437/6995/4456/files/zizujewugevazefikelobet.pdf
    • https://cdn.shopify.com/s/files/1/0432/9072/2469/files/luxutisifudelafimokeruduf.pdf
    • https://cdn.shopify.com/s/files/1/0432/8023/6702/files/35264853353.pdf
    • https://cdn.shopify.com/s/files/1/0430/3077/3913/files/ultimate_trolling_gui_roblox_script.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000785c.bin
f4fd41faf4b4b4f005fd8b5554678f2fd511f3810a5fc3c7ca08aa5c5d3670d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x785C 4776 bytes
font_01_sfnt_off0000886d.bin
60133c1cabfa4e37d7087b39b412a28d8c48a2d67d9725d0f0e100596cf73318		 pdf-font-stream PDF embedded font (sfnt) at offset 0x886D 9948 bytes
font_02_sfnt_off0000aa90.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAA90 4324 bytes
font_03_sfnt_off0000b890.bin
cfb2d60674a4bd1e8074347b02bc4b3a7b14061f1a1075585f591dc4c625dd59		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB890 8528 bytes

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