Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb75e63a4afc02d3…

MALICIOUS

PDF

44.3 KB Created: 2020-08-20 05:48:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7c524ef304e7a66f3e7cabf0cba7e7ac SHA-1: 66dd244e697b54071b5f63b613268d3fcd6deaec SHA-256: bb75e63a4afc02d3620d1cbfdbff2f6987c706a30e7cfb13df0cee26abb49864
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains a lure for an advance-fee scam, specifically mentioning a voucher and prize, which is a common tactic for financial fraud. It embeds numerous links, including one to a known malicious redirector at 'ttraff.com'. This redirector is likely used to obscure the final destination and potentially track victims. The document body, though heavily obfuscated, contains the text 'Good food guide voucher brisbane' and the malicious URL, reinforcing the lure. The presence of a link farm suggests an attempt to game search engines or distribute the malicious content widely.

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.com/pify?keyword=good+food+guide+voucher+brisbane
    • http://files.featherlegsoutdoors.com/uploads/1/3/1/4/131454549/vevazozovozu.pdf
    • http://files.noparameters.org/uploads/1/3/2/7/132740413/bipofikelate.pdf
    • http://files.flcprinceton.org/uploads/1/3/0/9/130969761/7835a.pdf
    • https://cdn.shopify.com/s/files/1/0430/8402/1921/files/jan_cartoon_games_free_for_pc.pdf
    • https://cdn.shopify.com/s/files/1/0446/4531/8819/files/calidad_de_vida_en_el_trabajo_en_mexico.pdf
    • https://cdn.shopify.com/s/files/1/0438/4607/4525/files/anatomy_of_fetal_skull.pdf
    • https://cdn.shopify.com/s/files/1/0432/2190/9662/files/kusiripovebawigamujidawo.pdf
    • https://cdn.shopify.com/s/files/1/0431/0020/9319/files/ramexewekolajoxunupedewa.pdf
    • https://cdn.shopify.com/s/files/1/0434/0737/6546/files/71813731910.pdf
    • https://cdn.shopify.com/s/files/1/0432/1827/2417/files/56056961834.pdf
    • https://cdn.shopify.com/s/files/1/0444/4487/6966/files/amazon_web_services_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0431/2521/1298/files/18293239851.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/2500557594.pdf
    • https://cdn.shopify.com/s/files/1/0431/2599/7722/files/xenenakanojedelojig.pdf
    • https://cdn.shopify.com/s/files/1/0432/2040/2337/files/miwogavof.pdf
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/paradise_4eva_ls.pdf
    • https://cdn.shopify.com/s/files/1/0441/3331/8808/files/the_maze_of_bones.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_off00006b53.bin
d69e0638dc7e68efa2ddf3c1ab48061325b3ed6fccf8b212036874688f53fe13
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B53 5484 bytes
font_01_sfnt_off00007dfd.bin
6bcaebd7eef9f61e9729ea7775dd6abe49e2b16d36c88737b31e3f563fd9f4d0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DFD 11184 bytes