Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7eabd2b17e14309…

MALICIOUS

PDF

42.5 KB Created: 2020-08-03 17:49:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c0263acbc7ecd91c11290642cc7fdc9 SHA-1: 7a624bd155de4923a1d841ee3334300cd3bbbff3 SHA-256: d7eabd2b17e14309dfbbaf0d00867f8b8de5568229db9a48dd77f48b0790f618
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.cc/pify?keyword=ball+bearing+catalogue+skf+pdf'. It also exhibits characteristics of a link farm, embedding numerous external PDF links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same redirector URL and a reference to 'Ball bearing catalogue skf pdf', suggesting a lure to a malicious site.

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=ball+bearing+catalogue+skf+pdf
    • http://zodaju.portsoy-holiday-cottage.co.uk/uploads/1/3/0/7/130738524/tuworul.pdf
    • http://files.coppercocktailco.com/uploads/1/3/1/3/131379380/jonoruv-wujeluvazud-juvozidivale-dodunojikenuka.pdf
    • http://files.theamericangurner.com/uploads/1/3/1/4/131437666/753a454f86.pdf
    • http://files.maxtaxw2.com/uploads/1/3/1/3/131384429/0b01966688224e.pdf
    • http://files.michellerampulla.com/uploads/1/3/0/7/130739353/taxazoterudi-wujujipobej-fugolevexe-kojukigafu.pdf
    • https://cdn.shopify.com/s/files/1/0431/9232/0161/files/gafulixuzilelipelanaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7102/0954/files/bitog.pdf
    • https://cdn.shopify.com/s/files/1/0431/8085/1364/files/45278210562.pdf
    • https://cdn.shopify.com/s/files/1/0434/1458/5509/files/gojegelojozal.pdf
    • https://cdn.shopify.com/s/files/1/0435/7029/9038/files/81454517498.pdf
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/25147585605.pdf
    • https://cdn.shopify.com/s/files/1/0432/5369/4626/files/bediw.pdf
    • https://cdn.shopify.com/s/files/1/0430/5960/9753/files/tezofakesavevuriguse.pdf
    • https://cdn.shopify.com/s/files/1/0433/1828/0357/files/zumoj.pdf
    • https://cdn.shopify.com/s/files/1/0437/2519/3368/files/68295963086.pdf
    • https://cdn.shopify.com/s/files/1/0430/9024/7829/files/xatiwuv.pdf
    • https://cdn.shopify.com/s/files/1/0437/1464/2069/files/87239785157.pdf
    • https://cdn.shopify.com/s/files/1/0436/0781/8398/files/pedelofeve.pdf
    • https://cdn.shopify.com/s/files/1/0430/0092/2261/files/48521901017.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_off00005c40.bin
a1fb6b4b63b28e0594dbfe9d749e1643ccfb199fb6256c6ead61a1af2eef94ab
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C40 5460 bytes
font_01_sfnt_off00006ed4.bin
3331635eed8a01a5bfb8883a1b7311ce48bd6931dcd9901f94930c5bcb73db05
pdf-font-stream PDF embedded font (sfnt) at offset 0x6ED4 9396 bytes
font_02_sfnt_off00008ef3.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x8EF3 4324 bytes