Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e94e3260b84b548…

MALICIOUS

PDF

49.0 KB Created: 2020-08-20 04:28:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4da56d12761537dd36db5865d22aa277 SHA-1: 60cb281b71af2f4b5dc8d3fd1bc9463a2cc59921 SHA-256: 9e94e3260b84b548fb81aba161403c5b2dabd3032d4e042429dcb1d98b69a764
120 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.ru'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains text related to a game and the malicious URL, suggesting a lure to drive traffic to the redirector.

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=pixel+royale+unknown+battleground+survival+game
    • http://files.harvestofsongs.com/uploads/1/3/1/4/131483391/tofulanobuviza-tibarazeka-sovotez-xuraxiduvunis.pdf
    • http://files.queridaarabians.com/uploads/1/3/1/6/131606465/jepugodosogeten.pdf
    • http://wajevefiv.ameliathehedgehog.com/uploads/1/3/2/7/132712109/kusimoja-tamelixize.pdf
    • http://dedenem.medexnet.nl/uploads/1/3/1/4/131407797/6841593.pdf
    • https://cdn.shopify.com/s/files/1/0438/5685/5190/files/suvur.pdf
    • https://cdn.shopify.com/s/files/1/0435/9448/1823/files/67585594684.pdf
    • https://cdn.shopify.com/s/files/1/0433/3905/5253/files/campaniform_sensilla_locomotion.pdf
    • https://cdn.shopify.com/s/files/1/0450/0570/1284/files/neumonia_viral_y_bacteriana_en_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0437/7047/8746/files/xunod.pdf
    • https://cdn.shopify.com/s/files/1/0433/5845/3918/files/79611421076.pdf
    • https://cdn.shopify.com/s/files/1/0433/8165/3655/files/castrol_power_1_racing_4t_10w50.pdf
    • https://cdn.shopify.com/s/files/1/0436/5955/9065/files/taretamufuwamozuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4864/0418/files/gerowuvifudusadunifivuj.pdf
    • https://cdn.shopify.com/s/files/1/0433/9000/9502/files/detumefozupigulizasujaki.pdf
    • https://cdn.shopify.com/s/files/1/0435/6685/8408/files/37639871325.pdf
    • https://cdn.shopify.com/s/files/1/0436/9770/1032/files/kipuxamevabijeladewep.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_off00005e6d.bin
e3329fc4f39d59768f57ebecee4e69fe6d14ab41c3fe2ee8792ae4bf80700970
pdf-font-stream PDF embedded font (sfnt) at offset 0x5E6D 5672 bytes
font_01_sfnt_off000071b4.bin
cfe7dcfa4a078a256f3971bef0c58835e76535ba0126e65f3bae9507ae2437e0
pdf-font-stream PDF embedded font (sfnt) at offset 0x71B4 1820 bytes
font_02_sfnt_off00007a66.bin
c1e732191cac6c2e7149140e33c167e8bf1e81eff551a22cc48ef1d33809e8e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A66 10528 bytes
font_03_sfnt_off00009e89.bin
cb8b0c3b75634a3ac40028f3142d2b99dbff9c8bfe93654f62892c2eba89f065
pdf-font-stream PDF embedded font (sfnt) at offset 0x9E89 16336 bytes