Malicious PDF — malware analysis report

Static analysis result for SHA-256 e45ef0a2a883f563…

MALICIOUS

PDF

38.8 KB Created: 2020-08-03 08:40:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79028cb16d71e99908c3f57d6cd88836 SHA-1: 066ee7d9ec870403510a7ad74a4ef625afda062d SHA-256: e45ef0a2a883f563bd00df711bdeb7124f988683db080058b9bfcb3ec8586af0
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.com'. The document body, though heavily obfuscated, contains a URL that appears to be the same redirector. The PDF also contains a mass of external links, many hosted on Shopify, which is indicative of a link farm used for SEO poisoning or to obscure the true malicious destination. The primary malicious URL is 'https://ttraff.com/wb?keyword=pengertian%20studi%20kasus%20pdf'.

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/wb?keyword=pengertian%20studi%20kasus%20pdf
    • http://files.tanawanhandycraft.com/uploads/1/3/0/7/130776245/e029c7.pdf
    • http://files.flopinions.net/uploads/1/3/2/6/132695278/vipokufot-zebowudedawoz-lanevoven-roritedak.pdf
    • http://files.largeblackhogofpa.com/uploads/1/3/2/6/132681028/c81104c37a1c.pdf
    • https://cdn.shopify.com/s/files/1/0428/7420/8419/files/xotinuwirepusagurisa.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.pdf
    • https://cdn.shopify.com/s/files/1/0431/6397/5835/files/23284633454.pdf
    • https://cdn.shopify.com/s/files/1/0434/4443/7142/files/dutazoxibozisonojolonut.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/96646258458.pdf
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/42993295017.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/63384809322.pdf
    • https://cdn.shopify.com/s/files/1/0434/5511/9520/files/frostpunk_console_commands.pdf
    • https://cdn.shopify.com/s/files/1/0430/8277/6729/files/xupuzutumixevidelaxenazos.pdf
    • https://cdn.shopify.com/s/files/1/0433/0071/6694/files/94901623841.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_off00005bb4.bin
34744b03206c7799618651bb211df5aad508c2baec71d3e0237a4a034d97c562		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB4 5244 bytes
font_01_sfnt_off00006d9e.bin
a9501a35342fcc6f1be1156d12d951ece660173ae6c9e74d86f4571a4f7a46e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9E 9700 bytes

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