Malicious PDF — malware analysis report

Static analysis result for SHA-256 844614f3a94d1e0f…

MALICIOUS

PDF

38.4 KB Created: 2020-07-27 09:08:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b256d7deea40810599e5589db44da3c SHA-1: c28d1f8ea4475042c743a9c0fc48f2ed6656be86 SHA-256: 844614f3a94d1e0f335ecdf812a0524f7ba3fdfd8ff8dae7bdf40a69b6a7bc9a
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text related to 'Facebook ads manager', suggesting a lure. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or manipulate search engine results.

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=facebook+ads+manager+latest+apk
    • http://files.brooksidevt.net/uploads/1/3/2/6/132696018/samum_nijige.pdf
    • http://files.athenstherapyco-op.com/uploads/1/3/1/4/131453124/5286966.pdf
    • http://files.northarlingtoncert.org/uploads/1/3/0/7/130775309/9982665.pdf
    • http://files.adamsbiz.com/uploads/1/3/1/4/131452735/kilunupaxivejanedu.pdf
    • https://cdn.shopify.com/s/files/1/0434/6108/3288/files/pelojomivowawa.pdf
    • https://cdn.shopify.com/s/files/1/0433/0471/4404/files/33317174769.pdf
    • https://cdn.shopify.com/s/files/1/0431/1344/7584/files/memokaradibon.pdf
    • https://cdn.shopify.com/s/files/1/0429/5586/6263/files/jofakef.pdf
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/vewizenogiwoxukel.pdf
    • https://cdn.shopify.com/s/files/1/0435/8920/6174/files/53629651386.pdf
    • https://cdn.shopify.com/s/files/1/0431/7803/3313/files/56190158159.pdf
    • https://cdn.shopify.com/s/files/1/0430/9565/4554/files/66275391960.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/39086675177.pdf
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/98289000928.pdf
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/mujoxagozo.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vewurobafug.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_off00005872.bin
62c42c553710948b425d49459878fd7f808efe838c4f1e4012d81cbf5c0df7d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5872 5292 bytes
font_01_sfnt_off00006a4a.bin
3f4a174dc8430f6d0fdf8b216909fd5f29ae33d7ca6d95231c05df94d660f5e3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4A 9928 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.