Malicious PDF — malware analysis report

Static analysis result for SHA-256 e3379d242feed8d0…

MALICIOUS

PDF

52.9 KB Created: 2020-09-16 18:04:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b183d9499f1ee3a0ad25d5a63b0bca1 SHA-1: e1be31d74b1ecfa452410abccdf988f4c34aa668 SHA-256: e3379d242feed8d0a49bdfa0589de0bf76826d43cdd5e07331cf6b6e08e9a93b
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The presence of a link farm heuristic further indicates an attempt to distribute malicious content through numerous external links.

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.club/wix?keyword=prince+of+peace+baptist+church+chicago+il
    • http://bakasinu.michaelhadjimichael.com/uploads/1/3/0/7/130738531/4692345.pdf
    • http://lezefas.primecomps.com/uploads/1/3/0/7/130738714/3370120.pdf
    • http://manabuje.transformineducation.org/uploads/1/3/0/8/130874299/5040093.pdf
    • https://cdn.shopify.com/s/files/1/0434/7851/5864/files/ravelawenovamivo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0710/6462/files/sosebegapevulusix.pdf
    • https://cdn.shopify.com/s/files/1/0433/4885/2894/files/lazemalo.pdf
    • https://fe9376ad-ae9f-47f6-a1d4-e7eb3a72cb48.filesusr.com/ugd/4329d7_9e8048efc06042c1b2e4ab6c9903867c.pdf?index=true
    • https://4ce37a5e-e115-4337-b43f-6ddcac4a9550.filesusr.com/ugd/031dda_1762b5d3af1341cca8be52fe5eb4e985.pdf?index=true
    • https://59f384c5-0c55-447e-a1e7-34949345cdb6.filesusr.com/ugd/3ed902_9de49b7905c044c7b1f96be166446500.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0481/4281/1289/files/honey_bun_cake_with_cream_cheese.pdf
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/24951126920.pdf
    • https://cdn.shopify.com/s/files/1/0435/5417/7183/files/3989710852.pdf
    • https://cdn.shopify.com/s/files/1/0435/7141/3151/files/14424602230.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ba2.bin
90fde11a3f0037fc907ae8b61c813580ea22ef209ebde2636d9354b201d9be1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BA2 6476 bytes
font_01_sfnt_off00006ba9.bin
ec68be90fc03ea528f4a25ee6fa50734fa594b34c10c12d8d061d21ae574667e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BA9 5420 bytes
font_02_sfnt_off00007e08.bin
38ee7023fbe8e769b16ae379caae6baccf0062aaaf67857c8eb24571311f8d72		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E08 5364 bytes
font_03_sfnt_off00008d61.bin
e7c8824f902a67444b8a0db7672087485749dd50f3c5ede1f01953bf178f9124		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8D61 10036 bytes
font_04_sfnt_off0000b009.bin
bf950c4e7133ce77fdef2df0205da95a07fbf1ab4917480175e64671a73767ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB009 16168 bytes

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