Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f3ae53ee69b5ad0…

MALICIOUS

PDF

39.3 KB Created: 2020-08-19 00:05:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5c805ca03037b063686d263913790e49 SHA-1: 7e712d2ff2d5486ef26fe2495eb394e9f258e432 SHA-256: 1f3ae53ee69b5ad00b75634dd8ec816948d50245101a3c827a7667348b8ecd71
128 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Android 10 custom rom vince' and embeds a link that redirects to known malicious infrastructure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic firing confirms this malicious redirection. The PDF_SEO_LINK_FARM heuristic indicates the document is part of a larger link farm, likely for SEO manipulation or to distribute malicious content. The embedded link `https://ttraff.cc/pify?keyword=android+10+custom+rom+vince` is the primary indicator of malicious activity.

Heuristics 4

  • 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.
  • XFA form low PDF_XFA
    PDF uses XML Forms Architecture — can contain script logic
  • 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=android+10+custom+rom+vince
    • http://nopivu.paolocroatto.com/uploads/1/3/0/7/130776054/vijalawudutude.pdf
    • http://files.therazorandshear.com/uploads/1/3/1/4/131452803/wizuxuvisofi_xokasimesu_mutudugurituj_fitetikikipib.pdf
    • http://files.lauramckaigpt.com/uploads/1/3/0/8/130813550/4874eff1.pdf
    • https://cdn.shopify.com/s/files/1/0436/3275/4841/files/37914682102.pdf
    • https://cdn.shopify.com/s/files/1/0434/5479/1832/files/nazadijixinezumeti.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/68270733080.pdf
    • https://cdn.shopify.com/s/files/1/0429/9427/0371/files/zipofadomod.pdf
    • https://cdn.shopify.com/s/files/1/0433/7201/9877/files/wow_small_furry_paw.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/buxidumex.pdf
    • https://cdn.shopify.com/s/files/1/0427/7361/0663/files/36396486552.pdf
    • https://cdn.shopify.com/s/files/1/0434/4774/6716/files/reserus.pdf
    • https://cdn.shopify.com/s/files/1/0431/4136/5922/files/bible_quiz_galatians.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_off00005db1.bin
7557b813784d617583df2232eaf8389fa155c4f4d05f9b2234858e554497395d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB1 5088 bytes
font_01_sfnt_off00006ee6.bin
92165496579054c44541e845a83bc1677c996fc87a185086c29f7d74b1174e4b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6EE6 10000 bytes

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