Malicious PDF — malware analysis report

Static analysis result for SHA-256 de2fed26b5282237…

MALICIOUS

PDF

40.8 KB Created: 2020-08-01 12:22:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 963fd42e3925934f4ccdd4c32be599a0 SHA-1: e79095092e38762ecbf501d790bc6c7b34142e1c SHA-256: de2fed26b52822375d946be1f8315cc67036d6f5bc36aad2456da02ab703eb9f
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to a redirector service. The primary malicious link identified is 'https://ttraff.cc/pify?keyword=fl+studio+for+dummies+pdf', which likely leads to a malicious payload or phishing page. The document body, though heavily obfuscated, contains references to the lure and the malicious URL, reinforcing the phishing attempt.

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=fl+studio+for+dummies+pdf
    • http://files.daughtersofthemayflower.com/uploads/1/3/0/7/130740521/xawekepogopi.pdf
    • http://files.havenofrestbristol.org/uploads/1/3/2/8/132814371/petufisipoj.pdf
    • http://files.goldenorchidphotography.org/uploads/1/3/0/8/130813645/xosovir.pdf
    • http://files.tomfontaineceramics.com/uploads/1/3/0/8/130874009/zavobaxaluwajutatir.pdf
    • https://cdn.shopify.com/s/files/1/0428/7699/3695/files/18015509425.pdf
    • https://cdn.shopify.com/s/files/1/0438/4089/7174/files/86860172252.pdf
    • https://cdn.shopify.com/s/files/1/0436/2852/7776/files/toxotirikibutifure.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7660/files/wiwokelowuzoxijupeloxakad.pdf
    • https://cdn.shopify.com/s/files/1/0429/8558/6849/files/74424721224.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/minirefotapobizezuloxot.pdf
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/repudobulumexemid.pdf
    • https://cdn.shopify.com/s/files/1/0430/5109/0077/files/solodepu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6726/8517/files/7864039009.pdf
    • https://cdn.shopify.com/s/files/1/0435/2140/9184/files/selajalimuvakegaza.pdf
    • https://cdn.shopify.com/s/files/1/0428/5366/2883/files/the_killers_human.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_off00006468.bin
8043464a906df1ae24283efd4d181cf94d281b42f1e0af569a81c20cda19bd12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6468 4932 bytes
font_01_sfnt_off00007519.bin
95bb1ac078e9c60ec8d50a3d861ad0d5602edb328986df89b7cb620b3adb851a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7519 9752 bytes

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