Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a92b4b1d198c6bb…

MALICIOUS

PDF

41.1 KB Created: 2020-09-12 03:56:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67284a55d840eb3fc0ea8edb24756ba9 SHA-1: 8438bc69f3626c4ec0e2cecb4a929f46e9e9414f SHA-256: 3a92b4b1d198c6bb4f201f9cc52ce3b902b520e02e4254e579f86ac3110ac5de
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to potentially malicious redirectors or unknown domains. The document body, though heavily obfuscated, contains a URL that matches one of the heuristic findings. This suggests the document's primary purpose is to redirect users to malicious sites, likely for further exploitation or phishing. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.link/wix?keyword=miya+bhai+hyderabadi+new+song
    • http://raluj.viktorcage.shop/uploads/1/3/2/6/132695351/5e264.pdf
    • http://files.theplayactionsports.com/uploads/1/3/1/6/131606059/vasenajolute.pdf
    • http://files.ritaauerbachpaintings.com/uploads/1/3/1/4/131437919/ff8860c5.pdf
    • http://files.amsetcen.com/uploads/1/3/0/9/130969061/jevijizunol-junapavamego.pdf
    • http://files.northforkpoa.org/uploads/1/3/1/3/131384635/gisenazuxi.pdf
    • http://files.awakeningtoascension.com/uploads/1/3/2/6/132696483/6326352.pdf
    • https://cdn.shopify.com/s/files/1/0445/8138/8452/files/ragnarok_online_mobile_eternal_love_leveling_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/3550/0439/files/78803026718.pdf
    • https://cdn.shopify.com/s/files/1/0432/9222/9797/files/pipefitter_book.pdf
    • https://cdn.shopify.com/s/files/1/0431/4791/9516/files/factoring_polynomials_gcf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0012/6885/files/introduccion_al_budismo_tibetano.pdf
    • https://static.usrfiles.com/ugd/3e5d97_3c437668b1a741898a8d7c340d8d31fe.pdf
    • https://static.usrfiles.com/ugd/bc0d1e_d728a4da5c814849ac27020e286e79df.pdf
    • https://static.usrfiles.com/ugd/9b2d9b_fcab999036a946198a493255d845b70e.pdf
    • https://static.usrfiles.com/ugd/b8c837_281e734dd9934f03bbd40e4afd39e7fb.pdf
    • https://static.usrfiles.com/ugd/dd4472_6e602c682781424598dcc2a02fd4be07.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005819.bin
0d8ba9a675b96f1dc34b2c3df211cd5f973d34d7234f294a061011c6178c10af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5819 5392 bytes
font_01_sfnt_off00006a87.bin
a774396f8d604024db1b100aa31f8497599101f1ec96ff51de14fede56a338c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A87 14520 bytes

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