Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ffe6b547196a62d…

MALICIOUS

PDF

43.0 KB Created: 2020-08-09 23:03:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5cb4cb041b13e6651c654866391cb928 SHA-1: ed3448d46d21eff23b8f4bde4402c7212dcfd2a9 SHA-256: 2ffe6b547196a62d9197711f29d4d07b3f04e49956e2a4f2459db3297e0c5815
120 Risk Score

Malware Insights

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

The PDF contains a link farm designed to distribute malicious content, with a primary redirector identified at ttraff.cc. The document body, though heavily obfuscated, contains references to the same malicious URL and numerous other URLs hosted on Shopify and other domains, likely as part of a SEO poisoning or link farm strategy. The heuristic firings confirm the presence of malicious redirector links and a link farm within the PDF structure.

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.cc/pify?keyword=balanced+scorecard+conceitos+e+guia+de+implementa%25C3%25A7%25C3%25A3o+pdf
    • http://files.rowanprssa.org/uploads/1/3/2/6/132696604/lawax.pdf
    • http://files.rcmcm.com/uploads/1/3/1/4/131452838/mijijadupiviropu.pdf
    • http://vufaluri.quovadisboerboels.net/uploads/1/3/0/8/130874493/damedufitenepo.pdf
    • http://files.hlfmgoats.com/uploads/1/3/1/3/131383553/jopaxubesoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rinubigelezegir.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/potaneb.pdf
    • https://cdn.shopify.com/s/files/1/0436/3590/0569/files/rifufosemisugow.pdf
    • https://cdn.shopify.com/s/files/1/0431/0705/7825/files/51646828716.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/wo_mic_client.pdf
    • https://cdn.shopify.com/s/files/1/0430/9227/9445/files/enlaces_intramoleculares_e_intermoleculares.pdf
    • https://cdn.shopify.com/s/files/1/0432/2351/5300/files/82478623358.pdf
    • https://cdn.shopify.com/s/files/1/0431/9959/4656/files/xudakegitelu.pdf
    • https://cdn.shopify.com/s/files/1/0430/6717/9165/files/nupaju.pdf
    • https://cdn.shopify.com/s/files/1/0429/3869/5846/files/ledadewozowebirakujapov.pdf
    • https://cdn.shopify.com/s/files/1/0440/8098/8325/files/download_ableword.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005bcd.bin
a8991c515e246a8527a8724d64381ef3754ca5a0425cc6eae150daece795ebab		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BCD 6024 bytes
font_01_sfnt_off00006f53.bin
51ebeec29509b87aa858d500e37ac8853184703d07d1f913ce36d8e1dc7764c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F53 1800 bytes
font_02_sfnt_off000077e1.bin
e7aa379aa1155cb5a0ca37792809cead93825b6c7e5b2dcb3a6d624ee5ee7870		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77E1 11596 bytes

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