Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8232e417e81a82…

MALICIOUS

PDF

51.9 KB Created: 2020-09-10 13:15:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 01ed22fbf65508c73475d65170e1f71f SHA-1: b5e6a0af8ae6207ac52deedd92ba6f0e58f84729 SHA-256: be8232e417e81a826a91b93a2ae416be59c4e3f697e16dace715422f17764109
128 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically identified as a malicious redirector. The document body, though heavily obfuscated, contains text suggesting it is an 'incident report form', which serves as a lure. The presence of a link farm heuristic further indicates a malicious intent to distribute links to potentially harmful content.

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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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/wix?keyword=incident+report+form+hospitality
    • http://files.vlassolutions.com/uploads/1/3/0/7/130775521/504665cab.pdf
    • http://files.kinnakeetclay.com/uploads/1/3/1/3/131382092/3187733.pdf
    • http://jexuf.figfleurs.com/uploads/1/3/1/4/131405962/6971746.pdf
    • http://gigon.kathyfriend.com/uploads/1/3/1/4/131406071/fc18ec.pdf
    • http://files.themastectomystore.com/uploads/1/3/1/8/131871740/5379044.pdf
    • https://cdn.shopify.com/s/files/1/0464/5624/2344/files/arlington_value_capital_presentation.pdf
    • https://cdn.shopify.com/s/files/1/0440/7649/9096/files/get_free_carfax_report_online.pdf
    • https://cdn.shopify.com/s/files/1/0438/6488/3355/files/wusoxuz.pdf
    • https://cdn.shopify.com/s/files/1/0432/0791/7729/files/76967229772.pdf
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/bokuzikatudenexof.pdf
    • https://cdn.shopify.com/s/files/1/0433/9138/5758/files/41715893754.pdf
    • https://cdn.shopify.com/s/files/1/0435/6662/9032/files/77895086807.pdf
    • https://cdn.shopify.com/s/files/1/0430/0334/7097/files/doorbell_transformer_lowes.pdf
    • https://cdn.shopify.com/s/files/1/0428/2017/3983/files/chopai_sahib_path_download.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_off000077d6.bin
2a2cb7a7fbdf840f974daa73abb26bb3a8f8d65ff8e426e2125856940f8f83c6
pdf-font-stream PDF embedded font (sfnt) at offset 0x77D6 5220 bytes
font_01_sfnt_off0000895c.bin
5563e00f788026cf356ba71e500fca85b4b4506defa487281d0bea3d6acc7f55
pdf-font-stream PDF embedded font (sfnt) at offset 0x895C 13896 bytes
font_02_sfnt_off0000b4b3.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230
pdf-font-stream PDF embedded font (sfnt) at offset 0xB4B3 4324 bytes