Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e8e3865b6f29879…

MALICIOUS

PDF

42.5 KB Created: 2020-08-03 02:07:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f0b5dff47cbb613d2faa5d40e396d8c1 SHA-1: 074cc121e6f09705be487ca3765e732982ce9e3d SHA-256: 9e8e3865b6f29879ec40660e46d2087dfbfd6fc2cad78cf8c7098de321a76fb1
162 Risk Score

Malware Insights

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

The PDF file contains a heuristic indicating it is a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=compound+versus+simple+interest'. Additionally, it exhibits characteristics of an advance-fee scam lure, suggesting the document's content is designed to trick users into clicking malicious links. The presence of numerous external PDF links, many hosted on Shopify, further supports the link farm heuristic. No scripts were extracted from this sample.

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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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.ru/pify?keyword=compound+versus+simple+interest
    • http://files.divorcecoachingandconsulting.com/uploads/1/3/0/8/130874518/bejam-soselovorifat-tekumubobup-powidonuvewadar.pdf
    • http://files.congrevelab.org/uploads/1/3/0/7/130776573/pumuvufofu.pdf
    • http://files.chepclub.com/uploads/1/3/0/7/130776265/676778c695cd10.pdf
    • http://files.gftrails.ca/uploads/1/3/0/8/130813639/vapelimelin_jujotub_judonemaweli_xedejewofulijew.pdf
    • https://cdn.shopify.com/s/files/1/0430/4207/8877/files/busixemonefemosomi.pdf
    • https://cdn.shopify.com/s/files/1/0430/4253/7629/files/lewajegupiwojorefifire.pdf
    • https://cdn.shopify.com/s/files/1/0428/4655/2230/files/95794288782.pdf
    • https://cdn.shopify.com/s/files/1/0433/4472/4133/files/xabularawogofonodositoz.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/734523816.pdf
    • https://cdn.shopify.com/s/files/1/0430/5915/1009/files/fogatabefadigaril.pdf
    • https://cdn.shopify.com/s/files/1/0435/7334/6472/files/mudasomepux.pdf
    • https://cdn.shopify.com/s/files/1/0432/2141/8147/files/89188077402.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gijamibumiji.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/bigumovize.pdf
    • https://cdn.shopify.com/s/files/1/0430/8529/9876/files/69543789227.pdf
    • https://cdn.shopify.com/s/files/1/0431/5326/0701/files/vivupufovotiveluzulepipug.pdf
    • https://cdn.shopify.com/s/files/1/0434/9476/8792/files/misutagisewuluwatesofire.pdf
    • https://cdn.shopify.com/s/files/1/0431/3369/8209/files/sisenekukelub.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_off00006858.bin
ca8e89706fa29f5895b70a26d19a7d7e09c93ad49cac8fd14d5dbfbdf01206c3
pdf-font-stream PDF embedded font (sfnt) at offset 0x6858 4860 bytes
font_01_sfnt_off000078cc.bin
a4330dfc5d33f956805b503f5834f0c82e986063a78aa24c020e9194a8899ebb
pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 10560 bytes