Malicious PDF — malware analysis report

Static analysis result for SHA-256 7e0c81be3a5a5e74…

MALICIOUS

PDF

44.5 KB Created: 2020-08-18 16:02:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d56a58bdce00c329c6d86ae51bd297a SHA-1: ffac414ba5eda7efb102c01867595041e3086ea0 SHA-256: 7e0c81be3a5a5e74128d3f2f4a1bef68489ffaedb161f011e9347eec5123eb5b
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service (ttraff.cc) or other external PDF files. The document body, though partially corrupted, contains text related to 'cheap plus size red formal dresses' and the URL for the redirector, suggesting a lure to a phishing or scam website. The heuristic firings confirm the presence of malicious redirector links and a link farm designed for SEO manipulation.

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=cheap+plus+size+red+formal+dresses
    • http://files.janebrockman.com/uploads/1/3/0/9/130969673/012c7e.pdf
    • http://files.lesliemcgeaghhypnosis.com/uploads/1/3/0/7/130776607/zavefazo_ralami_wipisiselebusig.pdf
    • http://wutuwupov.brownstoneprep.com/uploads/1/3/1/3/131383377/4732863.pdf
    • http://bopaf.moniquesartjewelry.com/uploads/1/3/0/7/130775971/kilinimugadurew-dadiduvatomo.pdf
    • http://files.masonridgebrittanys.com/uploads/1/3/1/3/131398010/gijapuro-ziwabuxinifaxij-sureg-zetazutovo.pdf
    • https://cdn.shopify.com/s/files/1/0429/8542/2997/files/vipulumibakatij.pdf
    • https://cdn.shopify.com/s/files/1/0433/8850/2174/files/63964366400.pdf
    • https://cdn.shopify.com/s/files/1/0439/0017/4504/files/xugutakasubere.pdf
    • https://cdn.shopify.com/s/files/1/0431/2530/9601/files/negedekeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/2103/1832/files/18738485190.pdf
    • https://cdn.shopify.com/s/files/1/0431/8747/0485/files/mifudavelurikepejikefaveb.pdf
    • https://cdn.shopify.com/s/files/1/0452/3291/4592/files/canon_t70_user_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/4211/1650/files/nuwajosowaleku.pdf
    • https://cdn.shopify.com/s/files/1/0431/4185/7448/files/3250956689.pdf
    • https://cdn.shopify.com/s/files/1/0434/1379/9066/files/twitch_affiliate_emotes.pdf
    • https://cdn.shopify.com/s/files/1/0427/9474/6023/files/43581541612.pdf
    • https://cdn.shopify.com/s/files/1/0434/0065/9100/files/rujavulexogexizepo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005a69.bin
de5a1494f74cabfd1ac48e4a4ac65e44e4d079433ab9161c9f5698f9ffdf22b5
pdf-font-stream PDF embedded font (sfnt) at offset 0x5A69 5236 bytes
font_01_sfnt_off00006c18.bin
243fa266e499f24d37a7c18da43685800ed0154beaaa7bc6767a3d0fd0d72ea4
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C18 10312 bytes
font_02_sfnt_off00008f86.bin
794d8cc090a449e0d460036171b2d5b2c749cb0dc3f17972c44626ada68ee3d8
pdf-font-stream PDF embedded font (sfnt) at offset 0x8F86 16168 bytes