Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b4e1752a7f30b1f…

MALICIOUS

PDF

44.5 KB Created: 2020-08-21 03:02:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5f072669525aa9306b6641694441d3b4 SHA-1: 460340aa58c5333e9d9d6469f0e9cf8a00dd8313 SHA-256: 3b4e1752a7f30b1fce731bd846bfb348556493d363681ea32310091c7d6f6bee
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body, though partially corrupted, includes text related to 'Baillie gifford global discovery fund performance', suggesting a lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, including one that leads to a Shopify domain. The primary malicious IOC is the redirector URL, which is likely used to funnel victims 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.com/pify?keyword=baillie+gifford+global+discovery+fund+performance
    • http://files.pink-halo.org/uploads/1/3/0/8/130813381/7794329.pdf
    • http://files.allanimalclinichattiesburg.com/uploads/1/3/0/7/130775299/venipedek.pdf
    • http://vewituvup.stonechenlab.org/uploads/1/3/2/6/132695306/wilejoxaviralat_juwivupo_bekepotano_visasaz.pdf
    • http://doxokodif.infantmassagenewzealand.org/uploads/1/3/0/8/130814328/75dce4e620fd2.pdf
    • http://files.amhuff.com/uploads/1/3/2/6/132681359/974be3323.pdf
    • https://cdn.shopify.com/s/files/1/0427/9648/2727/files/79680787192.pdf
    • https://cdn.shopify.com/s/files/1/0450/8762/1283/files/solving_systems_of_equations_algebraically_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0440/4445/2005/files/best_pvp_class_6._2.pdf
    • https://cdn.shopify.com/s/files/1/0430/9689/9733/files/tn_bill_of_sale_for_car.pdf
    • https://cdn.shopify.com/s/files/1/0431/6997/2384/files/bhagavad_gita_sadhak_sanjivani_english_download.pdf
    • https://cdn.shopify.com/s/files/1/0431/7973/7237/files/rofomimita.pdf
    • https://cdn.shopify.com/s/files/1/0428/1401/3606/files/lojodoxorif.pdf
    • https://cdn.shopify.com/s/files/1/0436/1791/0941/files/51415807175.pdf
    • https://cdn.shopify.com/s/files/1/0429/9476/1877/files/95178081877.pdf
    • https://cdn.shopify.com/s/files/1/0427/6004/4710/files/2613935667.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/how_to_compress_file.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_off00006180.bin
6f6c726b0207aa3590e560af0fb1388109df322c436a537d1978ec78fcf03adb
pdf-font-stream PDF embedded font (sfnt) at offset 0x6180 5628 bytes
font_01_sfnt_off0000748a.bin
aca372b616dd22f95efcfc2c3d5e80d37dfc1474c6d3f273c4d69d96cba53405
pdf-font-stream PDF embedded font (sfnt) at offset 0x748A 10032 bytes
font_02_sfnt_off000096db.bin
7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71
pdf-font-stream PDF embedded font (sfnt) at offset 0x96DB 4324 bytes