Malicious PDF — malware analysis report

Static analysis result for SHA-256 1a06cc95e3a47a00…

MALICIOUS

PDF

46.9 KB Created: 2020-08-24 09:46:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48d9ba0a1fc394ffbf57b15577fb8986 SHA-1: 66fa5866b319190b5c1c8b84f78317cf8f3ca586 SHA-256: 1a06cc95e3a47a00fa1b208e482ffbf6693992250c39d2b62c9f61c30492ee2c
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 Shopify domains, but one critical link redirects to a known malicious domain. The document body, though heavily obfuscated, contains text related to parabola equations and the malicious URL. This suggests a social engineering tactic to trick users into clicking the malicious link, likely leading to further compromise.

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=vertex+form+equation+of+a+parabola+calculator
    • http://files.goodshepherdschoolgss.com/uploads/1/3/2/7/132710704/7166895.pdf
    • http://files.thecleanthumb.com/uploads/1/3/1/0/131071249/47472.pdf
    • http://files.veronicabrucewoodward.com/uploads/1/3/1/8/131857421/dukarepe_miton.pdf
    • https://cdn.shopify.com/s/files/1/0432/9363/8811/files/mepibikenoladavoxerij.pdf
    • https://cdn.shopify.com/s/files/1/0430/0665/6666/files/fiwuzi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/86399573169.pdf
    • https://cdn.shopify.com/s/files/1/0437/2804/4193/files/kill_all_processes_by_user.pdf
    • https://cdn.shopify.com/s/files/1/0431/4624/8358/files/mikepinafor.pdf
    • https://cdn.shopify.com/s/files/1/0431/3900/6615/files/95294986777.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0092/files/goletonamomonas.pdf
    • https://cdn.shopify.com/s/files/1/0435/6970/9217/files/relufezolif.pdf
    • https://cdn.shopify.com/s/files/1/0429/9603/9839/files/19750353028.pdf
    • https://cdn.shopify.com/s/files/1/0437/4816/3733/files/public_finance_full_notes.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_off00005806.bin
fe314962cd332a5be790b97c42c2119ef5c343589183ce3c8a7882f2d48e4166		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5806 5284 bytes
font_01_sfnt_off000069e8.bin
50f5642517c179de91e4a42d650fbd0c1f5c4ac2918f670a179ddd78db5c3b1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x69E8 14876 bytes
font_02_sfnt_off0000999c.bin
ce6c9a31222968989703f653af24ef420cae08753b095152a9eff5d9cedd60e7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x999C 16080 bytes

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