Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8613002f8f28282…

MALICIOUS

PDF

49.4 KB Created: 2020-08-08 08:33:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53122b5eef8398633131e47121013f1f SHA-1: 8b8412098cb12cf8634deae1d1f47b05c714363b SHA-256: f8613002f8f28282d95d505455639ea3cb445bd77eabedeece931c4c565fb686
120 Risk Score

Malware Insights

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

The PDF document contains a lure referencing 'Sojourner truth ain t i a woman speech pdf' to entice users to click on a link. This link, 'https://ttraff.cc/pify?keyword=sojourner+truth+ain+t+i+a+woman+speech+pdf', is identified as a malicious redirector. The document also exhibits characteristics of a link farm, embedding numerous external PDF links, many of which point to potentially malicious or unknown domains.

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.cc/pify?keyword=sojourner+truth+ain+t+i+a+woman+speech+pdf
    • http://files.etefl.co.uk/uploads/1/3/1/0/131070602/ddf68724f348e4b.pdf
    • http://files.100womenwhocareannapolis.com/uploads/1/3/0/7/130739379/zudojewupidez.pdf
    • http://files.ninemillionbicycles.com/uploads/1/3/1/8/131872149/9dec230e518.pdf
    • http://files.sewitschorke.com/uploads/1/3/0/8/130813804/cd48544f20e7.pdf
    • http://files.maertensmilano.com/uploads/1/3/1/8/131857152/1011f2c959.pdf
    • https://cdn.shopify.com/s/files/1/0432/1126/0067/files/40450556194.pdf
    • https://cdn.shopify.com/s/files/1/0432/4841/8971/files/supamo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3844/8548/files/line_6_spider_iv_15_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/1576/6177/files/33005483911.pdf
    • https://cdn.shopify.com/s/files/1/0433/9014/0581/files/armies_of_gielinor.pdf
    • https://cdn.shopify.com/s/files/1/0430/3778/6266/files/bacteria_brucella_abortus.pdf
    • https://cdn.shopify.com/s/files/1/0434/7671/3637/files/rumivaxoxep.pdf
    • https://cdn.shopify.com/s/files/1/0432/2584/1819/files/xurotezetupujejaxori.pdf
    • https://cdn.shopify.com/s/files/1/0430/0875/3827/files/29329980220.pdf
    • https://cdn.shopify.com/s/files/1/0432/3504/9640/files/xivabolapokanofadujodiri.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_off00008278.bin
9787985c52bbb9cc0b04dd0efc102be2d3f6ef6bcac555381927285bf5b4fc15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8278 5632 bytes
font_01_sfnt_off0000958c.bin
339e6ed4a0bec417e6f1f857fa65bddf733f03d10cac317be51727d379133a64		 pdf-font-stream PDF embedded font (sfnt) at offset 0x958C 10220 bytes

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