Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec0964ca7059fbd…

MALICIOUS

PDF

41.4 KB Created: 2020-08-07 04:58:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86839514065b9dd96bacc44d2b5aa4d5 SHA-1: ff14d0be772a8484181cdf217314b0a28f13621f SHA-256: aec0964ca7059fbde26ead118df3c174ea23afa687240391b09c3a518ccd2fb2
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link T1059.001 PowerShell

The PDF file contains numerous embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cisco 2960 switch password recovery pdf', suggesting a lure to trick users into clicking the malicious link. The presence of a link farm further supports the malicious intent of driving traffic to potentially harmful sites.

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=cisco+2960+switch+password+recovery+pdf
    • http://kolota.zarabethduell.com/uploads/1/3/1/3/131383544/xoremezijorede.pdf
    • http://files.primroseandpeony.com/uploads/1/3/0/7/130775429/3063421.pdf
    • http://zidef.coloresalonstudio.com/uploads/1/3/2/3/132302780/xerax-mosudo-xedarozawemiz.pdf
    • http://files.thehillchristianfellowship.com/uploads/1/3/1/4/131409017/nazavip.pdf
    • https://cdn.shopify.com/s/files/1/0432/4117/7252/files/kiximaninomas.pdf
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/64219808307.pdf
    • https://cdn.shopify.com/s/files/1/0431/0073/3596/files/rufitasu.pdf
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/gazekenowafikarominawoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65925238695.pdf
    • https://cdn.shopify.com/s/files/1/0430/6891/5863/files/55733627848.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/populewasikipi.pdf
    • https://cdn.shopify.com/s/files/1/0430/5040/1943/files/dejasafijofarebomoxeneto.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52733892229.pdf
    • https://cdn.shopify.com/s/files/1/0429/7054/6335/files/wexuga.pdf
    • https://cdn.shopify.com/s/files/1/0434/7399/3890/files/64061453416.pdf
    • https://cdn.shopify.com/s/files/1/0431/2589/9421/files/xuwenoxadenesot.pdf
    • https://cdn.shopify.com/s/files/1/0429/2801/3471/files/6880369610.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_off00005e25.bin
6176f24abbac0bb093e0408622dc146df9e2670643706f4065fbf4ce3702add1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E25 5956 bytes
font_01_sfnt_off00007279.bin
68d13ba8a9ecc431c6d809e355337b533a438ca4c8beac1cf699d276663fcc9e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7279 11240 bytes

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