Malicious PDF — malware analysis report

Static analysis result for SHA-256 eaa47f3df3773230…

MALICIOUS

PDF

41.8 KB Created: 2020-08-09 13:13:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6a26ad65358237c82ecc42d0caff8448 SHA-1: b1a6edadb946ae40c919a6cc1ebdd0280303729c SHA-256: eaa47f3df377323050d19ec4afa151f69dca4a7157ea0888765c9d17f5f00a3e
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' indicates that the link https://ttraff.com/pify?keyword=asturias+plano+pdf points to known malicious infrastructure. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a mass of external PDF links, suggesting a coordinated effort to distribute malicious content or phish users. The document body itself is heavily obfuscated and contains the malicious redirector URL, reinforcing the malicious intent.

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.com/pify?keyword=asturias+plano+pdf
    • http://files.juneauakwhales.com/uploads/1/3/1/6/131637257/bofabivu.pdf
    • http://numom.olvsf.org/uploads/1/3/0/7/130738970/6544519.pdf
    • http://files.fnqtropicaldancefestival.com/uploads/1/3/1/0/131070723/zuvez_webam.pdf
    • https://cdn.shopify.com/s/files/1/0430/3729/4754/files/12585224921.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sogogetuxupoxex.pdf
    • https://cdn.shopify.com/s/files/1/0435/4146/3189/files/disenuvizisofikulejebe.pdf
    • https://cdn.shopify.com/s/files/1/0434/0069/1866/files/33073106228.pdf
    • https://cdn.shopify.com/s/files/1/0429/0415/8375/files/33644582998.pdf
    • https://cdn.shopify.com/s/files/1/0435/9343/3246/files/business_plan_for_bread_bakery.pdf
    • https://cdn.shopify.com/s/files/1/0430/0891/7657/files/nazunelagu.pdf
    • https://cdn.shopify.com/s/files/1/0431/6240/2967/files/82199703059.pdf
    • https://cdn.shopify.com/s/files/1/0445/4167/3636/files/59513895466.pdf
    • https://cdn.shopify.com/s/files/1/0447/5292/8919/files/aggregate_demand_and_aggregate_supply_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0437/2656/9633/files/famigetopomabemegaj.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_off00006846.bin
d059c727f538a70b9e849d60871c7bbe967f503cda35c633737fff80f766f2c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6846 5024 bytes
font_01_sfnt_off00007969.bin
e1d219405662ad2341265229c086933adf69c43f6d994a25e0fe48994f3e07f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7969 9740 bytes

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