Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6a62434ded78e12…

MALICIOUS

PDF

47.6 KB Created: 2020-08-19 10:48:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 757e3537837cd742693664dcf30318a3 SHA-1: ae2f763e74cc0016ee2bab2326ff86f832c32bc5 SHA-256: d6a62434ded78e12ff86f41f7edd1f43f263556660cd1430d88ca0f46a1cf079
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.com/pify?keyword=metabolic+confusion+diet+plan+for+endomorph+pdf', is designed to lure users with a diet plan theme. The PDF also contains a large number of external links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of the malicious redirector is sufficient evidence of 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=metabolic+confusion+diet+plan+for+endomorph+pdf
    • http://sebaku.myrtlebeachchiropractor.net/uploads/1/3/1/4/131437375/gorusarijasa-papub.pdf
    • http://files.ccrestore.org/uploads/1/3/0/9/130969944/3253899.pdf
    • http://files.kaurpsychiatric.com/uploads/1/3/1/4/131438477/1927928.pdf
    • http://files.whimsicalsragdoll.com/uploads/1/3/0/8/130814680/1e079.pdf
    • https://cdn.shopify.com/s/files/1/0430/3483/7149/files/gaduguxizab.pdf
    • https://cdn.shopify.com/s/files/1/0435/1049/7434/files/basic_electrical_and_electronics_engineering_sk_bhattacharya_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/8295/7478/files/cooks_essentials_pressure_cooker_recipes.pdf
    • https://cdn.shopify.com/s/files/1/0440/5490/4997/files/wamusobofidezemez.pdf
    • https://cdn.shopify.com/s/files/1/0428/9645/7884/files/daven.pdf
    • https://cdn.shopify.com/s/files/1/0443/0177/9100/files/biological_science_dj_taylor_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0434/1753/4629/files/48809576651.pdf
    • https://cdn.shopify.com/s/files/1/0434/9735/7472/files/52782719543.pdf
    • https://cdn.shopify.com/s/files/1/0429/0176/6310/files/sokodekalodipopur.pdf
    • https://cdn.shopify.com/s/files/1/0438/6376/9243/files/23688154222.pdf
    • https://cdn.shopify.com/s/files/1/0434/2277/7496/files/66569819968.pdf
    • https://cdn.shopify.com/s/files/1/0433/9191/0038/files/tuvibejedel.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/
    • https://cdn.shopify.com/s/files/1/0434/2

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007320.bin
0e3609e3b75e04ce60fbac7e2abedfe8dddc5ac472b6e37f12701f917f26c216
pdf-font-stream PDF embedded font (sfnt) at offset 0x7320 5540 bytes
font_01_sfnt_off000085ca.bin
025689618f85fad2159b5fb7f16009909a1b5d1bd7b47c0dde1dfb9f4d754ac5
pdf-font-stream PDF embedded font (sfnt) at offset 0x85CA 13808 bytes