Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4fb28ef9bbe0ed8…

MALICIOUS

PDF

51.2 KB Created: 2020-08-21 20:10:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f0426f2d987bb4a9869c509c52b86df SHA-1: 1ba4aec2ae5fd18a672d829a5e6cafed1bfd11fa SHA-256: f4fb28ef9bbe0ed819719791fc200a89e14ff0a35015e2d5639e31cd21338571
120 Risk Score

Malware Insights

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

The PDF file contains numerous embedded links, with a critical heuristic identifying a link to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains text related to 'customer profile template bootstrap' and the malicious URL, suggesting a phishing lure. The presence of many external PDF links, including to Shopify domains, indicates a link farm strategy to obscure the malicious redirector. No scripts were extracted from this sample.

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=customer+profile+template+bootstrap
    • http://files.darrennixon.com/uploads/1/3/1/3/131379639/nimat_darodizejufop.pdf
    • http://jibosa.fortuneadhdcoaching.com/uploads/1/3/2/6/132681352/8423216.pdf
    • http://files.anandahairlounge.com/uploads/1/3/0/7/130739284/8b679fe1c.pdf
    • http://mojezemi.ubecbyrani.com/uploads/1/3/1/3/131398091/8514230.pdf
    • https://cdn.shopify.com/s/files/1/0435/4444/5082/files/sotafuxewatikarowib.pdf
    • https://cdn.shopify.com/s/files/1/0436/3137/8590/files/73504757484.pdf
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/zapuzopewon.pdf
    • https://cdn.shopify.com/s/files/1/0431/5840/5275/files/anticonvulsants_drugs.pdf
    • https://cdn.shopify.com/s/files/1/0437/0304/2216/files/behavioral_marital_therapy.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/30553092986.pdf
    • https://cdn.shopify.com/s/files/1/0434/5144/9496/files/18319199972.pdf
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/33223853996.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nowivozepax.pdf
    • https://cdn.shopify.com/s/files/1/0430/8015/5289/files/97972296812.pdf
    • https://cdn.shopify.com/s/files/1/0429/2601/4620/files/sobefinewarapokader.pdf
    • https://cdn.shopify.com/s/files/1/0428/2905/4118/files/kexatujiwupuvubufi.pdf
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/la_belle_au_bois_dormant_grimm.pdf
    • https://cdn.shopify.com/s/files/1/0433/7857/3464/files/veposukosopefujawifitef.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_off00007e8b.bin
a1cfb0252ae0bfbc472c20d370fafe604c3ec6701184036a90b53c83c277b718		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 5092 bytes
font_01_sfnt_off00008fbb.bin
d1f953e3b1f2fddb853a27836ed4eab8b007ab2516e7eea67a1556864e65988d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8FBB 14624 bytes

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