Malicious PDF — malware analysis report

Static analysis result for SHA-256 9d6eaa63c197513f…

MALICIOUS

PDF

37.9 KB Created: 2020-08-20 13:21:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5aeee0c65472a554a3210e2213da5517 SHA-1: 9622c78ad65aaacbe51a745a8b2736f68bc341b6 SHA-256: 9d6eaa63c197513f953069aab79db18e19c7253714d68c75edd55d97fc44e91e
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for being a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=whatsapp+status+video++tamil+hd'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, many hosted on Shopify. The document body, though partially corrupted, contains the same lure text and URLs, reinforcing the malicious intent. The primary attack pattern involves tricking users into clicking the malicious redirector URL.

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=whatsapp+status+video++tamil+hd
    • http://files.christiestimber.com/uploads/1/3/2/3/132302815/a80bec9c772bc.pdf
    • http://files.jlongkandb.co.uk/uploads/1/3/1/6/131606368/da1337258866eff.pdf
    • https://cdn.shopify.com/s/files/1/0430/8451/3444/files/79357380505.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/40276258879.pdf
    • https://cdn.shopify.com/s/files/1/0433/6553/1806/files/21110660264.pdf
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/suxufujupaxijakemidugise.pdf
    • https://cdn.shopify.com/s/files/1/0429/8312/9251/files/depobufominufatoxidesa.pdf
    • https://cdn.shopify.com/s/files/1/0433/7156/1116/files/watuluvo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/55951142275.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6673/files/twinkling_titanite_dark_souls_2.pdf
    • https://cdn.shopify.com/s/files/1/0461/5549/7635/files/adblock_chrome_mac_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/9658/1020/files/65754669392.pdf
    • https://cdn.shopify.com/s/files/1/0431/6479/5046/files/36982901734.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_off00004f29.bin
40fcf766d441da4060f7c5c1e557de3cbb4f81c3bb8ca9c014773cee77505579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F29 5176 bytes
font_01_sfnt_off000060b7.bin
cca1a9a9db2101b3840874088a00fc64c01b84bff24fbc8439fc88321ed07c99		 pdf-font-stream PDF embedded font (sfnt) at offset 0x60B7 13664 bytes

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